# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 197
1. ## physics

calculate the amount of work it takes to increase a cars speed from 10mph to 30 mph and from 50mph to 60mph. Is more work required for 10mph to 30mph?

asked by sam on August 6, 2014
2. ## science

how do you calculate the missing variable in work and power;example:you must exert a force of 4.5N on a book to slide it across a table .if you do 2.7J of work in the process,how far haveyou moved the book

asked by jimmy on August 28, 2014
3. ## math

Mr Ahmad starts work at 11.40 on Tuesday.He works for 12h45min.When does Mr Ahmad finish his work?Express your answer usering the 24-hour clock Math

asked by Mazhar on June 10, 2017
4. ## math

The length of a rectangular room is two feet less than three times its width. The area of the rectangle is 176 square feet. a) Write an algebraic equation to model this problem. b) Solve the equation to find the dimensions of the rectangle. Another tutor

asked by Aspen on January 28, 2018
5. ## Physical Science

HELP WITH THESE PLEASE! If you ride your bike at an average speed of 4km/h and nee to travel a total distance of 28 km, how long will it take you to reach your destination? A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic

asked by Audriana on August 7, 2013
6. ## Algebra

12. Determine if the following is a conjuction or disjunction. y + 4 < -1 or y + 2 > 8 (Points : 1) 13. State how you determined if the combination above was a conjunction or disjunction. (Points : 2) 14. Solve the problem. (Hint: You should have two

asked by kim on April 7, 2015
7. ## Computer Programming

Hello, Any help on the following problem would be greatly appreciated. The assignment is done with .java in eclipse. I have a class and a form with a Jlist, 2 text fields to enter the check amount and the ending Balance and a calulate button. I have some

asked by Marie on April 13, 2013
8. ## Signals & Systems

The suspension system of a car is modelled by the following differential equation: M*((d^2*y)/(d*t^2) + D*(dy/dt) + Ky( t ) = x( t ) where y(t) is the vertical position of the car body, x(t) is the external force coming from the ground acting on the car

asked by Tawana on November 7, 2014
9. ## English

1. Which idea is central to a literary analysis? A. the number of images in the work B. the order of the images in the work C. how the imagery relates to the work as a whole D. Imagery is not central to a literary analysis I think it's C? 2. Which should

asked by anthony on May 16, 2011
10. ## Anthropology

What do you think are the relative contributions of individual ideas and actions and the sociocultural context in which individuals live to the conditions depicted in Bourgois’ “Office Work and the Crack Alternative”? How would you compare individual

asked by Ron on June 25, 2007
11. ## ..physics.

At 20.0 C, an alumium ring has an inner diameter of 5.0000 cm and a brass rod has a diameter of 5.0500 cm. a. If only the ring is heated, what temperature must it reach so that it will just slip over the rod? b. WHAT IF? If both are heated together, what

asked by jean on April 19, 2007
12. ## Astronomy - Physics

Finally, we will look at a system that is in an orbit comparable to the Earth to see how the angle that the light strikes the surface and the length of day contribute to the total amount of energy that we receive from the Sun at the two solstices. Recall

asked by Amy on March 9, 2013
13. ## Physics

You can use any coordinate system you like in order to solve a projectile motion problem. To demonstrate the truth of this statement, consider a ball thrown off the top of a building with a velocity v at an angle θ with respect to the horizontal. Let the

asked by Malorie on February 5, 2014
14. ## MATHS

A travel agent arranged a payment plan for a client. It required a down payment of \$150.00 and 12 monthly payments of \$642.00. What was the total cost of the plan? 2. translate into math expression and solve. Some number divided by negative four is four.

asked by francis on October 12, 2006
15. ## Chemistry

A solution is prepared by combining 3.72 grams of an unknown non-electrolyte with 325.0 grams of chloroform. The freezing point of the mixture is -64.10 oC, while the freezing point of pure chloroform is -63.50oC. The kf of pure chloroform is 4.68

asked by Sarah on February 7, 2019
16. ## CHEMISTRY

1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,

asked by Allison on February 3, 2017
17. ## Chemistry

1. Not sure of how to do the calculations... Make a 0.200 m solution of NaCl in a 100. mL volumetric flask. ... Solution A's question or statement is the same but with M (molarity) Is this right? The small m means molality. If it were changed to capital M,

asked by A on February 2, 2017
18. ## English

1. I would rather die than surrender. 2. I would rather fail than cheat. 3. I would rather play games than study. 4. I would rather walk to work than go to work by car. ------------------------------- Are they all grammatical? Do we have to use the base

asked by rfvv on December 15, 2016
19. ## Algebra

1.Is the equation true false or open ? 9p+8=10p+7 A. Open; there is a variable B. True; the expression are the same for all values of the vaiables. False; the expression are never the same 2.Which is the solution of the equation 5-4x=-3? A.0 B.2 C.-3 D.1/4

asked by Anonymous on October 24, 2017
20. ## math

X|-2|0|2|4| Y|-4|0|4|8| Do the values in the table represent a linear function? If so what is the function rule? A. The values do not show a linear function. B. Yes, the values show a linear function; y=1/2x+4. C. Yes,the values show a linear function;

asked by callie on April 27, 2015
21. ## Physics

A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the table as follows: a 5.0 kg object at the origin of the coordinate system, a 12.0 kg object at (0, 2.0), and a 16.0 kg object at (4.0, 0).

asked by Anonymous on November 24, 2010
22. ## english comp

revise the following sentence to use modifiers correctly, clearly and effectively. *= revised sentence 1.The student cafeteria is operated by a college food service system chain. * A chain of food service system operates the student cafeteria. Thank you

asked by sis on April 9, 2016
23. ## Chemistry 12

9. According to Arrhenius, which of the following groups contain: i)only acids ii)only bases a. NaOH, H2CO3, KCl b. MgCl2, H2SO4, HCl c. HNO3, HCl, H3PO4 d. Mg(OH)2, AgBr, HF e. KOH, NH4OH, Ba(OH)2 10. Enough water is added to 100 g of sodium hydroxide in

asked by Kavitha on May 22, 2011
24. ## Trig application

I'm having trouble with this trig application. The scenario goes: A ferris wheel has a diameter of approximately 65 meters. Assume it takes 110 seconds for the ferris wheel to make one complete rotation. find the angular speed of the ferris wheel in

asked by Jane on March 3, 2016
25. ## algebra 101

If The sum of the measures of two complementary angles is 90° and If one angle measures 15° more than twice the measure of its complement, find the measure of each angle. What is The measure of one angle is 1 times the measure of the other. Find the

asked by misty on January 8, 2012
26. ## Chemistry

Please could someone advise me on how to write a balanced equation for the breakdown off H2SeO3. The solution is dissolved in water and conducts electricity. I know the charged ion present is H+ I am struggling to work it out and indentify the other ion

asked by Lucy on January 27, 2007
27. ## Intermediate Algebra

Hello I need a little help with my homework. I started trying to work it out but I am not sure if it is the correct solution. Please help! Question: Population growth. The exponential growth rate of the population of United Arab Emirates is 4.4% per year

asked by Samantha on September 10, 2010
28. ## Algebra

Set up and solve a system of equations The school that Joe goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold 12 adult tickets and 2 child for a total of \$122. The school took \$160 on the second day by selling

asked by Angie on February 12, 2017
29. ## english help immediately

Write about a time when you had to show respect for authority, even though it was difficult to do so. I need some ideas, thanks. Have you ever been angry with an authority figure -- parent, grandparent, coach, teacher, principal, police, etc.? Did you show

asked by anonymous on October 15, 2006
30. ## algebra

For a fixed rate, a fixed principal amount, and a fixed compounding cycle, the return is an exponential function of time. Using the formula, , let r = 10%, P = 1, and n = 1 and give the coordinates (t, A) for the points where t = 0, 1, 2, 3, 4. Round your

asked by Jade on March 8, 2007
31. ## alg 1

It takes a florist 3 hour and 15 minutes to make 3 small centerpieces and 3 large centerpieces. It takes 6 hours and 20 minutes to make 4 small centerpieces and 7 large centerpieces. How long does it take to make each small centerpiece and each large

asked by Emma on January 30, 2012
32. ## Chemistry 20

which of the following indicators would show an intermediate endpoint of color of orange: bromocresol green, methyl red, phenolphthalein or methyl violet? No clue how to do this. And what does it mean to show an intermediate endpoint. Please help

asked by Sarah on December 14, 2017
33. ## Physics

Instructions: Read the following paragraph carefully. Then use what you know about momentum, work, and energy to answer the following questions. Be sure to show your work. You are a traffic accident investigator. You have arrived at the scene of an

asked by Annet on December 15, 2014
34. ## Chemisty

Based on equation: 2MnO4¬¬(-) + 6H(+) +5H2O2 → 2Mn(2+) +8H2O + 5O2 A 50.0 mL solution of hydrogen peroxide of unknown concentration was diluted with 1.00L of water. 25mL of this diluted solution was then titrated with acidified potassium permanganate;

asked by Bree on September 23, 2015
35. ## Chem again sorry

A solution of sodium chloride in water has a vapor pressure of 18.3 torr at 25°C. What is the mole fraction of NaCl in this solution? __________ What would be the vapor pressure of this solution at 45°C? The vapor pressure of pure water is 23.8 torr at

asked by Dina on November 30, 2008
36. ## College Physics

If m_A=15.0kg and m_B =3.0kg, determine the magnitude of the acceleration of each block. If initially m_A is at rest 1.300m from the edge of the table, how long does it take to reach the edge of the table if the system is allowed to move freely? If

asked by Alyssa on September 23, 2009
37. ## Algebra 1 Word Problem (Reiny)

How am I supposed to solve this? "Sandy makes \$2 profit on every cup of lemonade that she sells and \$1 on every cupcake that she sells. Sandy wants to sell at least 5 cups of lemonade and at least 5 cupcakes per day. She wants to earn at least \$25 per day.

asked by Anonymous on January 16, 2014
38. ## Science asap!!!

This question is about energy efficiency. e.g. more efficient A= B C D E Less Efficient my question An old freezer has an energy consumption per year of 350kwh use the equation in the box to calculate the extra cost of using the old freezer for one year

asked by HS on September 20, 2013
39. ## Math

How to Generate Pythagorean Triples using an Odd Number 1. Start with an odd number, e.g. 3. Then the square of 3 can be expressed as the sum of two consecutive numbers, i.e. 32 = 9 = 4 + 5. Therefore the Pythagorean Triples are {3, 4, 5} since 32 + 42 =

asked by Kevin on February 22, 2012
40. ## chemistry

Is this a buffer system? NH3/(NH4)2SO4? It is formed by mixing NH3 (weak base) and a strong acid (H2SO4), but according to my worksheet it is not a buffer system. Why is this so? Isnt it a buffer as long as it consists of a weak base and its salt of a

asked by seth on January 13, 2011
41. ## Physics Momentum

1) Two 1 kg balls move away from each other, one traveling 5 m/s to the right, the other 5 m/s to the left. What is the magnitude of the total momentum of the system? 2) Two 1000 kg cars drive east; the first moving at 20 m/s, the second at 40 m/s. What is

asked by Isis on February 20, 2013
42. ## Physics

Two objects of different masses are joined by a light rod. a) Id the moment of inertia about the center of mas the minimum or maximum and why? b) If the two masses are 3kg and 5kg and the length of the rod is 2m, what are the moments of inertia of the

asked by Anna on November 22, 2015
43. ## Algebra 11

The diagram shows the plan made by a landscape artist for a homeowner's 16-meter by a 16-meter backyard . The homeowner has requested that rosebushes, fountain, and garden bench be placed so that they are no more that 14 meters apart. A). Has the landscape

asked by Alexis on April 1, 2014
44. ## Algebra II

The diagram shows the plan made by a landscape artist for a homeowner's 16-meter by a 16-meter backyard . The homeowner has requested that rosebushes, fountain, and garden bench be placed so that they are no more that 14 meters apart. A). Has the landscape

asked by Alexis on April 1, 2014
45. ## Math

In this problem we consider drawing some straight lines which form a nice pattern. Consider joining the point (0.1,0) to the point (0,0.9) by a line segment; then joining (0.2,0) to (0,0.8) by a line segment; and so on. In general, consider joining the

asked by Alex on April 21, 2015
46. ## physics

A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.305 Calculate the work done on the package by friction. Calculate the work done on the

asked by Matt on October 5, 2012
47. ## physics

A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.305 Calculate the work done on the package by friction. Calculate the work done on the

asked by Matt on October 4, 2012
48. ## chemistry please help

how do you know if a hydrolytic work up is required for reactions with grignard reagents? What does hydrolytic work up mean is it treatment with aqueous acid

asked by molly on November 2, 2009
49. ## Physics

What force does work on a ball rotating down an inclined plane? Explain why the other forces the ball experiences do not do work.

asked by Joe on November 29, 2010
50. ## Physics

A mechanical device requires 420 J of work to do 230 J of work in lifting a crate. What is the efficiency of the device? I keep getting 0.5% am I right?

asked by Anonymous on March 4, 2015
51. ## physics

what is the efficiency of a pulley that requires a worker to do 250 J of work to lift an object that requires 170 J of work

asked by joe on October 27, 2010
52. ## College Physics

It takes 164 kJ of work to accelerate a car from 23.7 m/s to 27.8 m/s. What is the car's mass? I tried using this equation but it didn't work KE = 1/2mv^2

asked by Anonymous on March 12, 2012
53. ## math,correction

simplify: 7sqrt(7x) + 5 sqrt (7x) My work: (7+5)sqrt (7x) My answer: 12sqrt (7x) is this correct? It looks fine. Good work. Thanks for asking.

asked by jasmine20 on April 19, 2007
54. ## Math

Limit = x-->infinity 11x^5+4x^3-6x+2/6x^3+5x^2+3x-1 My work: After doing lots of work I got 11/x^2 +4 -6/x^2 +2/x^3 All over 6+5/x+3/x^2-1/x^3 So then I get 4/6 but the correct answer is supposed to be infinity.. I'm very confused

asked by Maya on February 16, 2016
55. ## physic

how is the time for which work a machine and it does a work? t=? A=9.3*10^4J P=1.3*10^4W

asked by gdbtv on January 19, 2011
56. ## precalc

Find the exact value of each expression, if it exists: the -1 are representing the inverse functions! (a) sin -1 (-√2/2) (b) cos−1 (−1) (c) sin( 􏰀sin−1 (π)􏰁) (d) cos−1􏰀(cos􏰀(−4π􏰁􏰁/ 3)) (e) tan−1 (tan(0.6)) (f) cos−1(

asked by help! on April 17, 2016
57. ## Algebra, math,

A helicopter can fly 120 mph in still air. When flying to a town 700 miles away and returning the helicopter has to fly with a tailwind of x mph when going to the town and with a head wind of x mph when returning. If the return flight takes 2 hours more

asked by Dana on May 20, 2014
58. ## Chemistry Ap

At 20◦C the vapor pressure of pure methanol (CH3OH) is 89.0 torr and of pure water (H2O) is 17.5 torr. A solution of methanol and water has a total vapor pressure of 35.5 torr at 20◦C. Calculate the mole fraction of methanol in this solution. Assume

asked by Ethan on March 3, 2015
59. ## Chemistry Damon

1g of mixture of na2c03 and k2c03 was made upto 250ml is aqueous solution . 25ml of this solution was neutralized 20ml of hcl of unknow concentration. The neutralized solution required 16.24ml of 0.1N AGN03 for precipitation. Calculate a) the k2c03 is

asked by Ken Hung on January 12, 2014
60. ## Physics

A object-spring system oscillates with an amplitude of 3.8 cm. If the spring constant is 210 N/m and object has a mass of 0.50 kg, find the maximum speed of the object. I already have the mechanical energy of the system. How do I find the maximum speed?

asked by Chris Adison on April 9, 2008
61. ## Chemistry

I'm sorry here is another I do not understand. How do you find out exactly how much of a solution you would need to completely precipitate another compound in the reaction? We can precipitate out solid lead(II) iodide from an aqueous lead(II) nitrate

asked by Kierstin on May 10, 2016
62. ## econ

Suppose an individual has 60 hours of time available in the week and has to decide how much to work. The hourly wage is \$ 10 and he has \$ 50 per week from a government subsidy. 1. (15 points) Draw an equilibrium where the individual choose to work 50 hours

asked by tofu on January 31, 2007
63. ## physics

A pulley system reduces the effort of lifting a big bucket of water from a shallow well. The 100-newton bucket is lifted to a height of 5 meters with an unknown input force. If 50 meters of rope is pulled to lift the bucket the desired height and the

asked by genesis on May 1, 2012
64. ## Physics

You ride your bicycle down a hill, maintaining a constant speed the entire time. 1. As you ride, does the gravitational potential energy of the Earth-bike-rider system increase, decrease, or stay the same? 2. Does the kinetic energy of you and your bike

asked by Kathryn on May 23, 2011
65. ## Physics doppler effect

A person standing close to a railroad crossing hears the whistle of an approaching train. He notes that the pitch of the whistle drops as the train passes by and moves away from the crossing. The frequency of the approaching whistle is 523 Hz, and drops to

asked by Joan on May 16, 2011
66. ## Grade 8 prealgebra

Michael wants to rent a car on his vacation. The rental fee is 60 dollars per day plus a refueling charge of \$40. He has at most 400.00 to spend. The inequality 60d +40

asked by Mark on November 4, 2017
67. ## Math-Trigonometry

Master Chief is trapped on an island with a Scorpion Tank as his only means of defense. An enemy Covenant jet fighter just landed on a smaller island across the water. Master Chief would like to fire a shell across the water directly at the jet. However,

asked by Duane on November 30, 2010
68. ## calculus

Consider line segments which are tangent to a point on the right half (x>0) of the curve y = x^2 + 1 and connect the tangent point to the x-axis. If the tangent point is close to the y-axis, the line segment is long. If the tangent point is far from the

asked by Hal on November 14, 2009
69. ## Health insurance

Please check my answer thanks :) Ifan enrollee uses more services than originally assumed per the PPPM calculation, the the plan would 1. show a pfofit for that period 2. show a loss of that period 3. need a contract renegotiation 4. require that the

asked by Ashyleah on February 23, 2008
70. ## math

Let S be the set of all measurable functions on [0,1]. Then the set O of all functions in S equal to 0 a.e on [0,1] makes an additive subgroup of a commutative group S. Show that S/O with the distance p(f,g)=indefinite

asked by sxxx123456 on January 15, 2009
71. ## How can I show that Love is a Powerful Emotion?

PLEASE READ THIS In my essay for Romeo and Juliet, I've got to show a QUOTE and a few Setences to show that Love is a Powerfull emotion in Romeo and Juliet I need some help with this. What is a good way to express this? What should I use? I couldn't find

asked by Allyson on May 9, 2011
72. ## AP Chemistry

The Synthesis of an Iron Oxalato Complex Salt (“Green Crystals”) In this experiment you will synthesize a compound that will contain the elements potassium, iron, carbon, hydrogen, and oxygen. Carbon and oxygen will be present in the compound as

asked by Colin on October 17, 2012
73. ## Algebra

PLease ,Please ,Please help me solve this problems #1 Since x = 3y-4, -3(3y-4)+4y = -3 now just solve for y and then x #2 Since x = 4+4y, -(4+4y) = 4y=-4 or something Again, solve for y, then x

asked by Anonymous on October 9, 2014
74. ## Chemistry

A goal of the acid-base titration in this scenario is to determine the concentration of sodium hydroxide solution. To do this, a 1.3000 g sample of potassium hydrogen phthalate (KHC8H4O4) is massed out. The KHP has one acid proton (H+). The solid is

asked by Seth on September 26, 2015
75. ## Math help! Check my answers ASAP!

1. Which graph most likely describes the distance a person walks in a 24-hour period? (1 point) a. Graph IV** b. Graph II c. Graph I d. Graph III 2. A car traveling at 25 mi/h accelerates to 48 mi/h over the first 5 seconds. It maintains that speed for the

asked by Cutie Pie on March 14, 2017
76. ## Chemistry (Check and Help)

Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. 8.75 g of mercury (II) nitrate solution is mixed with 9.83 g sodium iodide solution (ppt). Hg(NO3)2(aq)

asked by Anonymous on November 2, 2015
77. ## math

If football team loses 3 yards, gains 12 yards, gains 10 yards, and then loses 15 yards. Did the team gain or lose yards overall? How many yards? Show your work

asked by haley on September 3, 2016
78. ## calc

given S=piX(X+2Y) and V=piX^2Y show that dS/dX=pi(X-Y) when V is constant, and dV/dX=-piX(X-Y)when S is constant. Please HELP!! I have tried several times, and I don't get the result you asked for. If we're given S=piX(X+2Y), then dS/dx=

asked by sammy on October 5, 2006
79. ## Algebra

A ball is thrown into the air with an upward velocity of 26 feet per second. Its height, h, in feet after t seconds is given by the function h(t) = –16t^2 + 26t + 5. a. How long does it take the ball to reach its maximum height? Round to the nearest

asked by Wes on February 13, 2017
80. ## finance

Find the final amount in the following retirement account, in which the rate of return on the account and the regular contribution change over time. \$470 per month invested at 5%, compounded monthly, for 7 years; then \$709 per month invested at 7%,

asked by un on May 7, 2017
81. ## math

4. Thomas is at a store buying school clothes. T-shirts are on sale for \$13 each and jeans are on sale for \$18 each. a) Write an equation that represents the total cost for x T-shirts and y pairs of jeans. I need help with a.. b) Thomas bought six T-shirts

asked by Sasha on October 22, 2016
82. ## math

A tank contains 50 gallons of a solution composed of 90% water and 10% alcohol. A second solution containing 50% water and 50% alcohol is added to the tank at rate of 4 gallons per minute. As the second solution is being added, the tank is being drained at

asked by deel on August 10, 2012
83. ## Chemistry

Hey guys! Trying to understand this problem before my Chem exam but I just can't get it down no matter how hard I try. Detailed solutions would be greatly appreciated because I'm so lost on this one. Thanks! What mass of ammonium chloride must be added to

asked by Joce on March 24, 2016
84. ## chem

A 0.158 g sample of magnesium metal reacts completely with 100.0 mL of 1.0 M hydrochloric acid in a coffee cup calorimeter. The temperature of the solution rose from 25.6°C to 32.8°C. What is ∆Hrxn? Assume the specific heat of the solution is 4.184

asked by peter on June 25, 2015
85. ## Statistics

A Youth Correction Center completed a study to explore the proportion of delinquent behaviour, according to birth order, among two groups of teenagers (males and females, age 12-17). The data are given in the table below. Determine whether there is a

asked by Jess on June 15, 2013
86. ## Math

Suppose there is a quiz in your mathematics class every week. The value of each quiz is 50 points. After the first 6 weeks, your average mark on these quizzes is 36. a) What average mark must you receive on the next 4 quizzes so that your average is 40 on

asked by Anonymous on January 8, 2016
87. ## Math

Store A usually sells a jacket for \$72 but today I can buy it for \$40. Store B usually sells the same jacket for \$38 but today I can buy it for \$18. Which store is offering the greatest percentage off the origanal price ? In which store would you buy the

asked by pavleen on February 19, 2010
88. ## Chemistry

Question: the conversion of one precipitate to another by the addition of a suitable reagent is a process that involves heterogeneous equilibrium system. for example, silver chloride can be coverted to silver bromide by the additino of aqueous sodium

asked by Anonymous on May 6, 2009
89. ## Chemistry

I'm not sure if i did this problem right or not. I keep reading through my book, and i think i followed the equations right, but i'm not confident with my answers. The problem: 5.0 g of glucose,C6H12O6, is disolved in 500.0 g of acetic acid. What is the

asked by Angelina on October 22, 2010
90. ## Is anyone here a chemistry genuis?

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

asked by timmy on April 9, 2010
91. ## Finance

1. Is a fixed-price contract a good way to achieve the government’s goal of curbing rising costs? Explain. 2. What problems do you foresee if any, for the government if they choose to adopt a fixed-price contract methodology for research and development?

asked by Gale on July 19, 2009
92. ## Art

Discuss a minimum of two reasons why Jackson Pollock's Convergence (p. 510, Figure 734), is a work of "fine art" as opposed to an arbitrary composition of paint. Imagine that you are a defense attorney for this work of art. Establish a very strong

asked by Alicia on November 10, 2007
93. ## chemistry

Calculate the xolubility of calcium sulfate in 0.010 mol/L calcium nitrate at SATP CaSO4 ==> Ca^+2 + SO4^= Ca(NO2)2 ==> Ca^+2 + 2NO3^- = 0.01 M Ksp CaSO4 = (Ca^+2)(SO4^=) = ??. Look up Ksp for CaSO4. Subsitute 0.01 for Ca^+2 and x for SO4^= and solve for

asked by Dustin on April 8, 2008
94. ## central academy

rupesh completes a work in 3 days and sakshi completes it in 1 day only ..if they both complete the work in 15 days then how many days rupesh took in completing the work ??

asked by rakesh bidu on December 18, 2015
95. ## Chemistry

you measure 5.3g of KOH and dissolve it in enough water to make 400 ml of solution. what is the molarity of this base? You want to neutralize this base with a 3.7M H2SO4. How much sulfuric acid is necessary to do this? x=5.3g/39+16+1 = 5.3/56=.095m

asked by Jessica on April 5, 2011
96. ## Chemistry

An aqueous solution with a density of 0.998 g/ml at 20 degrees Celsius is prepared by dissolving 12.8 mL of CH3CH2CH2OH (p=0.803 g/mL) in enough water to make 75.0 mL of solution calculate the percent (w/w), percent (w/v), parts per million, and molality?

asked by Jessica on October 2, 2011
97. ## chemistry

A solution of 114 mL of 0.190 molecules KOH is mixed with a solution of 200 mL of 0.220 molecules NiSO4. a. write a balanced equation for the reaction that occurs. identify all phases in answer

asked by susie on October 2, 2011
98. ## basic chem

If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the

asked by Caitlin on January 17, 2013
99. ## chem please help!

If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the

asked by Caitlin on January 17, 2013
100. ## Chemistry

If a solution containing 33.82 g of mercury(II) acetate is allowed to react completely with a solution containing 9.718 g of sodium sulfate, how many grams of solid precipitate will be formed? How many grams of the reactant in excess will remain after the

asked by Caitlin on January 17, 2013