# Laurie expects to make \$100,000 in 2007. Her social security tax rate is 6.20% up to the wage base, Medicare is 1.45%. How much FICA is Laurie expected to pay for the year

75,574 questions, page 407

Give an example of a linear situation with a rate of a change that is i. positive ii. zero(no change) iii. negative write an equation that represents each situation in the part above. I don't get this so please help! Thank you!

asked by saranghae12 on October 13, 2011
2. ## Financing and Budget

This financial ratio measures the business's liquidity: A. profit margin. B. average daily rate ratio. C. current ratio. D. days receivable ratio. C.

asked by Amanda on November 19, 2014
3. ## Math

Need help solving this problem. If there's an equation at the end, need help in how to solve that also. Compounded interest problem. Principal \$825. Rate 4%. Compounded Annually. Time 10 years.

asked by J on February 9, 2011
4. ## physical science

Picnickers see a lightning flash and hear the resulting thunder 9.0 s later. If the storm is traveling at a rate of 15 km/h, then how long, in minutes, do the picnickers have before the storm arrives at their location?

asked by sandy on March 10, 2015
5. ## algebra

john borrowed \$650 from credit union . interest rate is 7.9% , and takes loan for 6 months . what will be his monthly payment to repay loan plus interest ?

asked by starasia on April 23, 2012
6. ## Logs

The number of years n required for an investment at interest rate r to double in value must satisfy (1+r)^n = 2. Using the approximation ln(1+r)=r valid for small r, find the number years n as a function of r.

asked by Linda on April 21, 2008
7. ## Math

A balloon 150 meters from the observer is rising vertically at constant rate. After 1 minute the angle of elevation is 28 degrees and 29 minutes. What is the angle after 3 minutes?

asked by Angel on June 22, 2016
8. ## physics

A car initially going 30ft/sec brakes at a constant rate (constant negative acceleration) coming to a stop in 4 seconds. How far did the car travel?

asked by kimberly on April 21, 2011
9. ## dbs

Determine the rate of interest at which a sum of money will become 216/125 times the original amount in 1 and a half years, if the interest in compounded half

asked by david on September 24, 2017
10. ## General Math

IF ONE CLERK CAN PROCESS 75 PIECES OF MAIL IN 2 AND A HALF HOURS, HOW LONG WILL ITTAKE EIGHT CLERKS TO PROCESS 1620 PIECESOF MAIL IF ALL OF THEM WORK AT THIS SAME RATE?

asked by SAPPHIRE on May 5, 2010
11. ## Accouting

How much investment per dollar of expected annual operating savings can a company afford if the investment has an expected life of 8 years and its required rate of return is 14%?

asked by Andrew on May 5, 2012
12. ## Finance

how do you take the fourth root? Please refer to the example below? Using Amount = Present Value(1+i)^n we do not know i. 249=183(1+i)^4 1.3606557=(1+i)^4 take the fourth root 1.0800331=1+i giving you i=0.0080031 so the annual rate is 8%

asked by Albert on July 17, 2007
13. ## physics

A particle travels horizontally between two parallel walls separated by 18.4 m. It moves toward the opposing wall at a constant rate of 5.8 m/s. Also, it has an acceleration in the direction parallel to the walls of 1.4 m/s2 .

asked by Anonymous on September 7, 2010
14. ## Algebra

Jorge took a trip to Mexico.Upon leaving he decided to convert all of his pesos back into dollars.How many dollars did he receive if he exchanged 42.7 pesos a rate of \$5.30 = 11.1 prsos?

asked by Zoe on August 22, 2015
15. ## science

A bowling ball has a mass of 10 kg and it is accelerating at a rate of 2m/s2. Calculate the force with which it hits the pins. force= mass*acceleration units: 1 newton= 1kg m/s^2

asked by danny on March 18, 2007
16. ## Chemistry

THE RATE LAW FOR THE REACTION 2NO + 02 = 2NO2 IS FIRST ORDER IN OXYGEN AND SECOND ORDER IN NO. PROPOSE A MECHANISM IN WHICH EACH STEP IS BIMOLECULAR. SPECIFY THE SLOW STEP. I HAVE NO IDEA WHAT TI DO. HELP PLEASE? THANKS.

asked by ALISON on January 22, 2012
17. ## physics

15.0 meters from a sound source that radiates freely in all directions, the intensity is 0.000550 W/m2. What is the rate at which the source is emitting sound energy? answer in Watts.

asked by tariq m on April 5, 2011
18. ## Math

Angelo earns \$2,080 each month. His total deductions are 30% of his pay. How much is deducted from his pay each month? A. \$62.40 B. \$624.00 C. \$69.33 D. \$693.33 i got C what i did is rate = base / percent Is what im doing right

asked by AK on July 16, 2008
19. ## Algebra

August began working on a computer program. After 7 1/5 hours, he had completed 20 1/10 lines of code. What was his unit rate of programming in lines of code per hour?

asked by Brinlee on April 10, 2018
20. ## math

Luis rides his bicycle 3:4 of a mike in 5 minutes,or 1:12 hour,along the bike trail.Assuming he rides at a constant rate,what is his speed,in miles per hour?

asked by keith on November 7, 2016
21. ## chemistry

What is the effect of the following on the separation of the mixture? a. A soluble, nonvolatile impurity b. a decrease in barometric pressure c. an increase in barometric pressure d. rapid heating rate

asked by Anonymous on October 7, 2010
22. ## Calculus

How fast is the area of a square increasing when thh side is 3m in length and growing at a rate of 0.8m/min? I did Area=x^2 Area'=2x(x') x'=area'/2xz x'=0.8/((2)(3)) Where did I go wrong? Thanks in advance.

asked by sh on November 29, 2009
23. ## MATH

NORALIE USES 22 GAL OF GAS TO GO 682 MILES. WHAT ARE THE 2 UNIT RATES SHE MIGHT COMPARE & COMPUTE THEM I KNOW ONE IS MILES PER GALLON BUT WHAT IS THE OTHER UNIT RATE? LITERS PER KILOMETER? PLEASE HELP

asked by SETH on November 20, 2008
24. ## calculus

The radius of a circular oil spill is increasing at a rate of 10 feet per hour. How quickly is the surface area changing when the radius is 200 feet?

asked by john9999 on February 27, 2013
25. ## math

Upon leaving Mexico Asanji decided to convert all his pesos back into dollars. how many dollars did he receive if he exchage 42.7 pesos at a rate of \$5.30 = 11.1. Show work please

asked by Jordynn on January 12, 2010
26. ## science

A 24 V battery of internal resistance 4 ohm is connected to a variable resistor. At what value of the current drawn from the battery is the rate of heat produced in the resistor is maximum?

asked by Himanshu Kumar on September 3, 2014
27. ## Algebra

Hilaria borrwoed \$11000 from her grandfather to pay for college. Five years later, she paid him back the \$11000 plus \$1650 interest. What was the rate of simple interest?

asked by Anonymous on August 30, 2017
28. ## ENGINEERING ECONOMY

A man bought a house and a lot worth P300000. The annual amortization of the house and lot is P34200. Determine rate of interest he was changed?

asked by pls help on September 9, 2013
29. ## chemistry

The following reaction was monitored as a function of time: AB--->A +B A plot of 1/[AB] versus time yields a straight line with slope 5.2 x 10^-2 M*s. What is the value of the rate constant (k) for this reaction at this temperature?

asked by Ellen on July 17, 2010
30. ## Elements of programming

prompt for and input a saleswoman's sale for the month(in cedi)and her commission rate. (as percentage). Output her commission for the month. Run it with flowchart using raptor

asked by Ibrahim on August 17, 2017
31. ## math

An airplane is flying at an altitude of 4000 feet and descends at rate of 200 feet per minute. Determine whether the altitude is proportional to the number of minutes.

asked by gage on September 6, 2018
32. ## Chemistry

On June 17, heavy rain fell on Seattle for 26 min. at a rate of 3.9 mm/hr. if the area of Seattle is 144km^2, how many gallons of water fell on the city that day?

asked by Angelina on January 17, 2013
33. ## math

what are some examples of a rate? speed of a car, how fast a cake bakes, how fast your sister grows, the speed of your grades going down if you start to not turn in homework.

asked by remae on March 19, 2007
34. ## physics

A particle travels horizontally between two parallel walls separated by 18.4 m. It moves toward the opposing wall at a constant rate of 5.8 m/s. Also, it has an acceleration in the direction parallel to the walls of 1.4 m/s2 .

asked by Anonymous on September 7, 2010
35. ## PHYS HELP

Water ﬂows over a section of Niagara Falls at a rate of 1.43 × 10^6 kg/s and falls 62.5 m. The acceleration of gravity is 9.8 m/s^2. How much power is generated by the falling water? Answer in units of MW.

asked by johana on March 9, 2011
36. ## algebra2

The number of years that a stock of \$40 increases to \$50 at a rate of 8% per year can be written by the logarithmic expression: log1.08(50 over 40) a. use your calculator to determine how many years it will take for the stock to reach \$50.

asked by corey on June 1, 2015
37. ## Financing and Budget

This financial ratio measures the business's liquidity:   A. profit margin.   B. average daily rate ratio.   C. current ratio.   D. days receivable ratio.   C.

asked by Amanda on November 19, 2014
38. ## Chemistry

Answer these questions about NaCl also known as table salt: 1. What is the name of the compound? 2.Are there any other names that it is known by? If yes, then please list them. 3.What is the chemical formula of the compound? Is it an ionic or covalent

asked by Rea on March 1, 2015
39. ## math

im trying to help my son any help would be great When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed)

asked by joni on January 12, 2010
40. ## physics

How would I graph a collision. i.e if I have a problem A 12,000 kg railroad car traveling at a speed of 19 m/s strikes an identical car at rest. If the cars lock together as a result of the collision, what is their common speed afterward? What would my x

asked by Brendan on January 25, 2010
41. ## Math

a total of \$ 14,000 is invested in two funds paying 4% and 5% annual interest. The combined interest is \$620 a)write a system of equations to model this problem b). graph this system and use the graph to estimate how much was invested in each fund?

asked by LAnae on May 6, 2010
42. ## mechanicle engineering

A train of mass 50,000kg and velocity of 30m/s collides with a stationary carraige of mass 10,000 kg. after the collision,both the train and the carraige moves off together as one body.determine the loss of kinetic energy due to the collision?

asked by nav on December 13, 2017
43. ## college algebra

1984-1994 the equation the number of aids cases can be modeled by the equation C(x)=3034x^2+14,018x+6400 X represents years after 1984 estimate the year when 200,000 aids cases had been diagnosed.

asked by Anonymous on February 19, 2013
44. ## Math

You want to purchase an automobile for \$21,600. The dealer offers you 0% financing for 48 months or a \$3,000 rebate. You can obtain 4.8% financing for 48 months at the local bank. Which option should you choose and why? (you would use the banks option to

asked by Anonymous on April 21, 2014
45. ## physics

GPS satellites orbit the earth about 20,000 km above the surface of the earth. The radius of the earth is 6,371 km. What is the acceleration due to earth’s gravity on the GPS satellites? i've tried fooling around with the A = V^2/ R and V = 2pir/T

asked by Dylan on May 1, 2015
46. ## math

A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of \$174,900

asked by Alana on September 14, 2014
47. ## physics

A car that weighs 15,000 N is initially moving at 60km/hr when the brakes are applied. The car is brought to a stop in 30m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force.

asked by Dale on June 11, 2011
48. ## Math

A company has determined that the profit, in dollars, it can expect from the manufacture and sale of tennis racquets is given by P = −0.01x2 + 130x − 180,000. How many racquets should the company manufacture and sell to earn a profit of \$174,900?

asked by Barbara on September 16, 2014
49. ## college algebra

1984-1994 the equation the number of aids cases can be modeled by the equation C(x)=3034x^2+14,018x+6400 X represents years after 1984 estimate the year when 200,000 aids cases had been diagnosed.

asked by Anonymous on February 19, 2013
50. ## history

hey i have done the half of it plz help me with the other half... give me ideas links...plz help How did social and gender structures in India differ from the Mediterranean? In India when the nomadic Aryans migrated into the Indus Valley, they met up with

asked by Anonymous on September 6, 2009

Please Check 1. How does nanotechnology help engineers make products for the future? a. By changing a materials atomic structure, it can be made from elements that are easier to obtain.*** b. By changing a material's atomic structure, its physical

asked by Blair on March 18, 2016
52. ## Science

Please Check! 1. How does nanotechnology help engineers make products for the future? a. By changing a materials atomic structure, it can be made from elements that are easier to obtain.*** b. By changing a material's atomic structure, its physical

53. ## physics

A race car starts from rest on a circular track of radius 265 m. The car's speed increases at the constant rate of 0.540 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following.

asked by Anonymous on June 26, 2012
54. ## Calculus

A 6 feet tall man walks away from a streetlight that is 15 feet high at a rate of 5 ft/s. Express the length 's' of his shadow as a function of time. What I have so far: I set up a triangle and used similar triangles to create a ratio (6/s) = (s/d+s) s =

asked by Rosie on August 31, 2015
55. ## Finance

moussawi ltd's outstanding bonds have a \$1000 par value, and they mature in 5 years. their yield to maturity is 9%, based on semiannual compounding, and the current market price is \$853.61. what is the bonds annual coupon interest rate?

asked by Anonymous on October 3, 2010
56. ## Stats.

I don't know where to begin with this one.... When told that over a 10-year period a mammogram test has a false positive rate of 50 percent, Bob said "That means that about half the women tested actually have no cancer". Correct Bob's mistaken

asked by Lindsay on April 23, 2014
57. ## physical

Question 10 An airplane traveling north at 400 m/s is accelerated due east at a rate of 50 m/s2 for 6 s. If the effects of air resistance and gravity are ignored, what is the final speed of the plane? 1. 300 m/s 2. 400 m/s 3. 500 m/s 4. 700 m/s 5. 800 m/s

asked by Nhlanhla on August 9, 2010
58. ## College Algebra (pt.3)

Alright, this is a bonus question on my homework. I think I did it wrong... How long will it take for an investment of \$1000 to grow to \$1750 if interest is compounded continuously at a rate of 8%? Round to the nearest tenth. A=Pe^rt \$1750=\$1083.38 divided

asked by Natalie on April 28, 2016
59. ## Science

1kg of water contained in a metal container is heated with 1me immersion heaterif the temperature roses from 25c to 45c in 100s what is the average rate of heat loss to the surroundings from the container during this time?

asked by Sachini on December 15, 2017
60. ## Math

Please help me with this problem. In 1626,Peter Minuit of the Dutch West India Company purchased Manhattan Island from Native Americans for \$24. Assuming an exponential rate of inflation of 6% per year,how much will Manhattan be worth in 2010?

asked by Anonymous on January 26, 2011
61. ## Chemistry

Iron(III) chloride is reduced by tin(II) chloride. the concentration of Fe3+ ion at the beginning of an experiment was 0.03586M. After 4.00 min it was 0.02638M. What is the average rate of reaction of FeCl3 in this time interval? Can someone help me figure

asked by Lauren on February 17, 2008
62. ## Physics (Energy and Momentum)

A 4400 kg rocket is set for vertical firing. If the exhaust speed is 1500 m/s, at what rate (in kilograms/second) must the gas be ejected to supply the thrust needed to give the rocket an initial upward acceleration of 23.0 m/s^2? Not sure where to start.

asked by Andrew on April 17, 2012

In the final stages of the landing process, a spaceship decelerates at a constant rate of 5.3 m/s2 heading towards the Earth. A 3kg lamp is hanging straight down, attached to the ceiling of the ship cabin by a chain. What is the tension in the chain?

asked by Michael on November 4, 2012
64. ## fire dynamics

11. Suppose 3,500 gallons of gasoline spill into a banked up area that measures circular area that is 10ft in diameter. If the fuel’s vertical burning rate is 6 in/hour, how long will the fire last if it is left unattended?

asked by clint on October 3, 2017
65. ## Chemistry

True or False? 1) Do Nuclear changes generally absorb more energy than chemical changes. 2) In Exothermic reactions, the reactants have more kinetic energy than the products. 3) If one molecule is involved the rate determining step is called first order.

asked by Christian on July 24, 2010
66. ## economics

Suppose government spending increases in a closed economy. Would the effect on aggregate demand be larger if the Bank of Canada took no action in response, or if the Bank were committed to maintaining a fixed interest rate? Explain

asked by Anonymous on June 17, 2009
67. ## Math

A clock was exactly on time at noon on Monday. At 8 Pm. on Tuesday it was 128 seconds slow. At that same rate, how much did it lose in 1/2 hour? Question 2. if carrots are selling at \$.0125 a pound, how many pound we can buy for a dollor. Answer 800.

asked by Shani on March 22, 2012
68. ## Math

A clock was exactly on time at noon on Monday. At 8 Pm. on Tuesday it was 128 seconds slow. At that same rate, how much did it lose in 1/2 hour? Question 2. if carrots are selling at \$.0125 a pound, how many pound we can buy for a dollor. Answer 800.

asked by Shani on March 22, 2012
69. ## math

The cash prize of a television is shillings 25000. A customer paid deposits Shillings 3750. She repaid the amount owing in 24 equal monthly installments. If she was charged simple interest at the rate of 40% p.a, how much was each installment

asked by John on February 5, 2015
70. ## Math

Corn is poured through a chute at the rate of 10ft^3 / min and falls in a conical pile whose bottom radius is always half the height. How fast is the circumference of the base changing when the pile is 8 feet high? Please explain

asked by Linda on April 2, 2012
71. ## Math

Need help setting up the problem: If you deposited \$800 into a savings account with an interest rate of 3.8%, what will be your balance at the end of 1 year. I was thinking the overall answer is 830.40 but you are supposed to use a percent equation and a

asked by Brandi on May 12, 2013
72. ## math

in traveling to Greece, Jim found the exchange rate to be 148 drachma equal to one American dollar. He bought 3 of the same priced items and spent almost 10 American dollars. What was the maximum amount of drachmas for each item?

asked by reid on February 21, 2013
73. ## calculus

An airplane flies at an altitude of 5mies toward a point directly over an observer. The speed of the plain is 600 miles per hour. Find the rate at which the angle of elevation thetha is changing when the angle is 75 degrees. Please help with this question.

asked by Claire on January 19, 2012
74. ## Physics for life scince

6.At the end of the 7th second the brakes are applied and the car slows down at a constant rate till it comes to rest in 5s. What is the acceleration? 7.Draw the v vs.t graph 8.find the final displacement: a)by using the graph b)by algebraic calculations

asked by Simeon on March 23, 2010
75. ## Math

A real estate agent earns a weekly salary of \$200. This week, he sells one home for \$120,00 and is paid a commission rate of 5%. Find his total earnings for this week. (7th grade math)

asked by Navpreet on January 21, 2014
76. ## Algebra

In an expedition to seize his enemy's elephants, a king marched 2 yojanas the first day. Say, intelligent calculator, with what increasing rate of daily march did he proceed, since he reached his foe's city, a distance of 80 yojanas, in a week?

asked by Sam on April 27, 2016
77. ## Linear

The equation y= 12x + 5 shows the total cost for ordering tickets on the phone for a certain outdoor concert. Tickets are \$12 each, and there is a one-time service fee of \$5. Can the slope of this line be thought of as a rate? Can someone "Explain" this

asked by Felicia J on June 23, 2010
78. ## Science

A male peacock displays his colorful tail feathers in order to 1) increase the success rate of asexual reproduction 2) increase the gestation period 3) release gametes into its surroundings 4) attract a mate I chose 4

asked by Abby on January 27, 2015
79. ## Chemistry!

1) does an increase in temperature increase the rate of bothe exothermic and endothermic reactions? 2) is the reaction between sodium thiosulphate and hydrochloric acid self-sustaining? This is for a practical investigation and im battling to find

asked by Candice on August 27, 2009
80. ## Math

The variable d represents the cost of a customer's meal, in dollar. The following expression represents the amount paid, including tax. d + 0.18d F. The cost plus eighteen percent of the cost G. the cost minus eighteen percent of the cost H. the cost plus

asked by chaya on April 19, 2011
81. ## precalculus

the population of a country is 65 millions if it grows exponentially in a rate of 1.5% annual 1.-calculate the estimate population in 12 years 2.-when the population increases 4 times could somebody please explain me this kind of problems where you need to

asked by steve alexander on November 25, 2008
82. ## fin corp

Delta has achieved an average return on equity of 36.5% for the last five years. If Delta generates a 17.2% net profit margin on sales of \$3 billion and pays no dividends, what is Delta’s sustainable growth rate?

asked by Anonymous on May 26, 2009
83. ## Physics - Flux

The coil has a radius of 8 cm and 110 turns. While moving the magnet farther away from the coil, at a certain point in time, the voltage meter shows -390 mV. What is the magnitude of the rate of change of the flux through the coil?

asked by Ashton on October 10, 2014
84. ## Maths, physics, science

A spherical tank in a petro-chemical plant has a radius of 5m. If liquid is entering the tank at a rate of 1500 litres per second and the depth is 3m how long will it take to fill the tank? Give your answer in seconds.

asked by URGENTTTT on May 16, 2018
85. ## exponential equations

Jen made an initial investment of \$1000 into a T-Bill account. After 2 years, her investment totaled \$1 175. Calculate the rate of appreciation, r, of the investment. Give answer to 2 decimal places.

asked by Anonymous on March 29, 2015
86. ## econ

1).The unemployment rate inan economy is 8%. The total population of the economy is 250, and the size of te civilian labor force is 150. The number of employed workers in this economy is _20. (IS THIS CORRECT)

asked by Anonymous on July 27, 2009
87. ## Physics

Rennata Gas is driving through town at 25.0 m/s and begins to accelerate at a constant rate of -1.0m/s^2. Eventually Rennata comes to a complete stop. Use kinematic equations to calculate the distance which Rennata travels while decelerating.

asked by alivia on August 22, 2018
88. ## Finanical

1. An investor purchases a mutual fund for \$50. The fund pays dividends of \$1.50, distributes a capital gain of \$2, and charges a fee of \$2 when the fund is sold one year later for \$52.50. What is the net rate of return from this investment?

asked by Sandra on December 18, 2012
89. ## maths

Jerry monthly salary consist of \$850 pluss commission of 15 % on the total sales made.If his total sales for the month of March is \$ 25 000 ,what is his income for the month of March?

asked by MTH on March 30, 2008
90. ## Physics

The surface of the Sun is approximately 5,650 K, and the temperature of the Earth's surface is approximately 295 K. What entropy change occurs when 6,000 J of energy is transferred by heat from the Sun to the Earth? (J/K)

asked by Sam on November 26, 2012
91. ## MAAAATTTTHHHHHH

Franco invests some money at 6.9%/a compounded annually and David invests some money at 6.9%/a compounded monthly. After 30 years, each investment is worth \$25 000. Who made the greater original investment and by how much?

asked by Maame on May 26, 2012
92. ## Pre-Calculus

Annual sales of fountain pens in Littleville are 2,000 per year and are increasing by 10% per year. How many fountain pens will be sold over the next five years? Use an integral to solve this problem. I just need help setting the problem up - thank you!

asked by Amanda on April 27, 2017
93. ## Math

A new car depreciates as soon as you drive it out of the parking lot. A certain car depreciates to half its original value in 4 years. IF you bought a car 8 years ago, and it's now worth \$5,000, how much did you pay for the car originally?

asked by Anonymous on September 21, 2013
94. ## Calculus

Starting at t=0, a particle moves along the x-axis so that its position at time t is given by x(t)=t^4-5t^2+2t. What are all values of t for which the particle is moving to the left? (A)0

asked by Mike on October 26, 2016
95. ## Statics

A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lbs and a small 24-lb spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 22

asked by Bryan on September 14, 2014
96. ## computer science

Write a declarations and input statements necessary to read each of the following sets of data values into variables of the appropriate types. You choose the names of the variables. In some cases, punctuation marks or special symbol must be skipped. a. 100

asked by Marilyn on September 27, 2011
97. ## Chemistry 101

A solution containing 83.100 g of sodium hydroxide [molar mass = 40.0 g/mol] was neutralised using phosphoric acid. Calculate the moles of sodium phosphate formed (assuming that the reaction goes to completion). Give your answer to three significant

asked by Drew on October 13, 2014
98. ## Chemistry lab

Discuss three unavoidable sources of error in Part 1 (the synthesis of the crystals) of this experiment and identify the major factors that would explain a less- than-100% yield. Note: human error is not an acceptable answer. Was the alum not dry enough

asked by Jake on March 1, 2016
99. ## chemistry

a 3.11g sample of one of the halogens, Xsubscript2, is shown to react with NaOH to produce 2.00g NaX. the equation is 2NaOH+X subscript 2 yields NaX+NaXO+ water. Assuming that the percent yield of product is 100% identify the halogen.

asked by callie on February 10, 2011
100. ## Microeconomics

Baseballs cost \$5 and baseball gloves cost \$20. Assume you have \$100 total to spend on these items. Construct a table similar to the one on page 158. What is the point, based on the Equimarginal Rule, that has equal marginal benefit (or the closest) for

asked by Jennifer on October 8, 2011