Questions Asked on
March 23, 2012

  1. chemistry

    The rate constant for this first-order reaction is 0.320 s–1 at 400 °C. A--> Products How long (in seconds) would it take for the concentration of A to decrease from 0.830 M to 0.220 M?

    asked by Katie
  2. physics!

    Playing in the street, a child accidentally tosses a ball at 21 m/s toward the front of a car moving toward him at 18 m/s. What is the ball's speed after it rebounds elastically from the car?

    asked by Eliana
  3. Pre-Calc

    A hot-air balloon is floating above a straight road. To estimate their height above the ground, the balloonists simultaneously measure the angle of depression to two consecutive mileposts on the road on the same side of the balloon. The angles of

    asked by John
  4. physics

    a hose pipe ejects water at a speed of 0.3m/s through a hole of area 50 cm*m.if the water strikes a wall normally, calculate the force on the wall , assuming the velocity of water normal to the wall is zero after striking?

    asked by mani
  5. Chemistry

    At constant pressure, which of these systems do work on the surroundings? Check all that apply. A(s) + 2B(g) ---> C(g) 2A(g) + B(g) ---> 4C(g) A(g) + 2B(g) ---> 2C(g) A(s) + B(s) ---> C(g)

    asked by Yasha
  6. chemistry

    The reaction described by this equation O3(g) + NO(g) -- O2(g) + NO2(g) has the following rate law at 310 K. rate of reaction = 3.0x10^6 M^-1 s^-1)[O3][NO] Given that [O3]=2.0× 10–4 M and [NO]=2.0× 10–5 M at t=0, calculate the rate of the reaction at

    asked by Katie
  7. chemistry

    The rate constant for this first-order reaction is 0.0570 s–1 at 400 °C. A-->Products After how many seconds will 14.0% of the reactant remain?

    asked by k
  8. Types of BUsiness writing

    Memorandum part. Draft an interoffice memorandum to Miriam Hopkins, the Director of Human Resources: A. Assume that you've received confirmation from Jeremy Dittmer for the date, time, and materials needed. The trainer he has assigned is Deb Walker

    asked by Shawna
  9. geometry


    asked by TJ
  10. types of business writing

    Draft an email of at least four complete sentences to Deb Walker the designated trainer: Confirm the arrangements for the seminar providing only the information she needs to arrive at the right place at the right time. Copy both to Mr, Dittmer and Ms.

    asked by Shawna
  11. Chemistry

    Given acidity constant,Ka of benzoic acid is 6.28 X 10^-5. pH of 0.15 molar solution of this acid is ? Here is my method: Benzoic acid is a weak acid,hence it dissociates very little. So: C6H5COOH---> C6H5COO- + H+ [H+] and [C6H5COO-] are yet to be

    asked by Meenaakshi
  12. precal


    asked by olivia
  13. statistics

    What are the chances that a person who is murdered actually knew the murderer? About 64% of people who are murdered actually knew the murderer. Suppose that a detective file in New Orleans has 63 unsolved murders. What is the probability that A )at least

    asked by lola
  14. chemistry

    a typical alberta home heated with natural gas assume methane CH4 (g) consuems 2.00ML of natural gas during the month of December. What volume of oxygen at SATP is required to burn 2.00ML of methane measured at 0 degrees and 120 kPa? the answer is 2.62ML

    asked by anita
  15. statistics

    The data set given below has y^ = 3x - 5 for its regression equation. Find the standard error of estimate. x 3 2 5 8 y 4 1 10 19 A) 1.29 B) 0 C) 2.06 D) 0.17

    asked by ericka
  16. physics

    An experiment makes use of a water manometer attached to a flask. Initially the two columns in the gas manometer are at the same level and the air pressure in the flask and both sides of manometr is 1 atm. The experiment is set up when the air pressure is

    asked by ms
  17. Bob Pursley

    I can not copy and paste to the board.

    asked by Damon
  18. physics

    A diver is jumping straight up with 2 m/s from a 15 meter platform. Calculate the maximum height of the diver, the diver’s velocity when reaches the water, and total time to reach the water.

    asked by Melissa
  19. language arts

    Need some adverb help. In the sentence...The man looked extremely nervous. I know extremely is an adverb. Is nervous an adverb too? Thanks.

    asked by Brandi
  20. precal


    asked by Lynn
  21. chemistry

    i need a molecular, ionic and net ionic equation for this : K_3 PO_4 + BaCl_2

    asked by jhong
  22. chemistry

    I really don't understand rate law. Could you explain that and help with this problem please? Determine the average rate of change of B from t=0 s to t=202 s. A-->2B Time (s) Concentration of A (M) 0 0.74 101 0.45 202 0.16

    asked by Katie
  23. Calculus and vectors

    A parallelogram is formed by R^3 by the vectors PA=(3,2,-3) and PB=(4,1,5). The point P=(0,2,3). a) what are the location of the vertices? b) what are the vectors representing the diagonals? c) what are the length of the diagonals?

    asked by Melinda
  24. chemistry

    How much heat energy is given off when one kilogram of hydrogen gas at 25C and one atmosphere is combined with enough oxygen gas to make liquid water at 25C?

    asked by Kevin
  25. precal


    asked by olivia
  26. Math

    A company that produces a particular machine component has 3 factories, one each in Buffalo, Detroit, and Pittsburgh. 39% of the components produced come from the Buffalo factory, 36% of the components come from the Detroit factory, and 25% of the

    asked by amy
  27. physics

    a construction worker accidentally knocks a brick from a building so that it falls in 4s to the ground.calculate a) the velocity of the brick as it hits the ground b)the distance fallen of the brick

    asked by shiva
  28. chemistry

    A fully sealed 50m^3 room at atmospheric pressure and temperature 20C contains two ballons, one containing helium and the other containing oxygen. The balloons each have a volume of 0.5m^3 and have gauge pressure 2m of water. The balloons are ruptured and

    asked by Chem123
  29. precal


    asked by olivia
  30. precal


    asked by Anonymous
  31. child psychology

    Dean associates certain activities,roles,and traits as being typical for either males or females.His associtions conform to cultural stereotypes and encompass many gender-linked responses.This is an example of: A.roles B.Identity C.Atypicality I think its

    asked by sarah
  32. Pre-Calc

    Evaluate the expression without using a calculator(show work please)? (sin pi/4 cos pi/6 - sin pi/6 cos pi/4) the answer is 1/4(2-ã3)

    asked by John
  33. physics

    A mass M = 5 kg moves with an initial speed v = 3 on a level frictionless air track. The mass is initially a distance D = 0.250 m away from a spring with k = 844 N/m, which is mounted rigidly at one end of the air track. The mass compresses the spring a

    asked by sara
  34. statistics

    The Denver Post stated that 80% of all new products introduced in grocery stores fail (are taken off the market) within 2 years. If a grocery chain introduces 66 new products, what is the probability that within 2 years , 7 or more fail? What is the

    asked by lola
  35. Calculus

    Let R be the region bounded by the y-axis and the curves y = sin x and y = cos x. Answer the following. a)Find the exact area of R. b)A solid is generated by revolving R about the x-axis. Find the exact volume of the solid.

    asked by ronnieday
  36. precal


    asked by Anonymous
  37. physics

    A 55.0 kg circus performer oscillates up and down at the end of a long elastic rope at a rate of once every 7.20 s. The elastic rope obeys Hooke's Law. By how much is the rope extended beyond its unloaded length when the performer hangs at rest?

    asked by Katie
  38. Algebra

    Use the substitution method to solve -x + 3y=24 5x +8y=-5

    asked by Jake
  39. precal


    asked by olivia
  40. Translation

    Translate the point (5, 5) to the new origin given (h, k). Given center (h, k) = (- 3, - 3), find point (x', y'). Translate the point (- 8, - 8) to the new origin given (h,k). Given center (h,k) = (- 3, - 3), find point ( x', y').

    asked by Sebastian
  41. math

    A rectangular dog pen is to be sectioned off into two separate areas and made to enclose area of 225 feet. Find the dimensions of the pen that will require the least amount of fencing material.

    asked by Ron
  42. Science

    The bonds between ions of opposite charge is strongest when the ions are small, the lattice energy of LiF is more exothermic than the lattice energy of CsI. Explain.

    asked by Godswill
  43. fractions

    sammi cuts a pizza into 8 equal parts she eats 2 pieces .what fraction of the pizza is left

    asked by nicole silva
  44. ms.sue 3 grade english


    asked by dw
  45. English

    I have to write an english assignment about banning a reality tv show. One of the paragraphs has to be about how 1984 underpins the whole concept of the show. I chose (Next Top Model). I have found a lot of links like unacceptable standards of beauty,

    asked by Em
  46. World History

    5. The success of the blizkrieg depended mainly on superiority in a. nuclear weapons b. naval power c. defense strategy d. mobile ground troops C? 10. It was difficult to write a peace treaty according to the Fourteen Points because the a. Germans wouldn't

    asked by mysterychicken
  47. Calculus and vectors

    |C|=5 and |D|=8. The angle formed by vectors C and D is 35 degrees, and the angle formed by vectors A and C is 40 degrees. Determine |B|. Could someone explain this question

    asked by Jake
  48. Physics

    A child pushes a merry go-round from rest to a final angular speed of 0.6 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.8 revolutions. What is the angular acceleration of the merry go-round? rad/s^2 This is

    asked by Adam
  49. English

    Can anyone explain this following quote: "Freedom is a right to one's dignity as a man" --Archibald MacLeish

    asked by Ahamed
  50. Physics. PLEASE HELP!!

    Find the power input of a force F=(7 N)ˆý + (3 N) ˆk acting on a particle that moves with a velocity v = (6 m/s)ˆý. Answer in units of W

    asked by Ashley
  51. Physics. PLEASE HELP!!

    Find the power of a force F= (10 N)ˆý +(−4 N)ˆj if the velocity v = (−4 m/s)ˆý +(4 m/s)ˆj. Answer in units of W (^i and ^j means i hat and j hat)

    asked by Ashley
  52. art

    how did portrait painting change from the 1500s to the 1600s

    asked by ryna
  53. maths

    the circle is given by the equation x^2+y^2+8x-7/2y=0 find (i)coordinates of the centre and the radius (ii)coordinates of the point where the circle crossesthe x-axis

    asked by mwaba
  54. College Physic

    2) A car traveling with 5 m/s encounters a deer. The drivers slams on the breaks, the breaks lock. The car skids to a complete stop on the road ahead (and the deer runs away). Why does the car stop (where does all the kinetic energy it had go)? Find the

    asked by Mary
  55. Calculus

    If a(0,-1,3)+b(1,1,1)-c(1,2,5)=(-2,3,-8), determine a,b,c

    asked by Melinda
  56. Math

    Suppose that you select 2 cards without replacement from an ordinary deck of playing cards. a) If the first card that you select is a heart, what is the probability that the second card that you select is an heart? b) If the first card that you select is

    asked by Sam
  57. Chemistry

    A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 10.23

    asked by Jematormal91
  58. Math

    The weights of adult long-tongued fruit bats are known to be normally distributed with a mean of 20.22 grams and a standard deviation of 3.23 grams. What is the probability that a randomly selected bat will: a) weigh at most 15 grams? b) weigh less than 30

    asked by Becky
  59. Chemistry

    When solving Hess law problems,do we need to use all the equations given to get the Htotal or just choose the relevant equations that are related to the final equation required? Let's say there r 5 equations given,but the relevant equations are 3 only ,so

    asked by Meenaakshi
  60. pre-algebra

    how long will it take to earn $568.75 in interest if $2500 is invested at a 6.5% annual interest rate

    asked by tatiana
  61. Math

    A mall has three department stores, J C Penney, Macy’s, and Sears. A survey of 1863 people exiting the mall found that 279 made a purchase at J C Penney, 240 made a purchase at Macy’s, 364 made a purchase at Sears, 76 made a purchase at J C Penney and

    asked by Danni
  62. maths

    solve for x given that (1/8)^12x =2^x+3

    asked by mazuba
  63. Chemistry

    How long can we use a bottle containing anti-bumping granules? Can it be used indefinitely?

    asked by anne
  64. math

    two records and three tapes cost $31.three records and two tapes cost $29 .find the cost of each record and each tape

    asked by geeh mommah
  65. English

    I urgently need you to revise this paragraph I need to prepare on Gulliver's travels. Thank you 1) Gulliver’s Travels, which can be regarded as Swift’s masterpiece, consists of four books, each dealing with the various adventures of the ship’s

    asked by Matthew
  66. Chemistry

    Write the mole ratio for Al+3 ion and CO3-2 ion in this equation, 2Al(NO3)3 + 3Na2CO3 = Al2(CO3)3 + 6NaNO3

    asked by Doreen
  67. physics!

    A 64 kg skater, at rest on frictionless ice, tosses a 12 kg snowball with velocity by v = 53i+ 14.0j m/s, where the x- and y- axes are in the horizontal plane. Find x-component v(x) of the subsequent velocity of the skater. As well as Find y-component v(y)

    asked by Eliana
  68. physics!

    Wildlife biologists fire 22g rubber bullets to stop a rhinoceros charging at 0.84 m/s. The bullets strike the rhino and drop vertically to the ground. The biologists' gun fires 15 bullets each second, at 72 m/s, and it takes 36 s to stop the rhino. What

    asked by Eliana
  69. English

    I left out these sentences. Thank you very much. I really need your revision. Thank you very much. 1) His last voyage leads him to the island inhabited by the Houyhnhnms, horses endowed with reason that rule over the ....., a vile and filthy species of

    asked by Matthew
  70. Math

    in a group of 30 students,20 are male,15 are from southern region,9 from the central and 6 from the north.if the proportion of female students is the same for each region,how many students are either female or from the central{or both}A.9 B.10 C14 D.16

    asked by Andrew
  71. Chemistry

    Solid ammonium nitrate can decompose to dinitrogen oxide gas and liquid water. What is delta G at 298K?

    asked by Emily
  72. math

    Let f(x) = ax^3 + bx^2 + 3x – 4. If f(x) is divided by (x – 2), the remainder is 2. When it is divided by (x – 1), the remainder is -2. Find a and b.

    asked by rick
  73. physics

    A triathlete swims 1200 m due to east followed by 1500 m due northeast (45o). What is the overall displacement? (magnitude and angle). Calculate the displacement with long-hand calculations.

    asked by Melissa
  74. math

    When px^3 – 2px^2 + 3x – p is divided by (x – 1), the remainder is -5. Find p.

    asked by rick
  75. Thesis example

    Pregnancy women with alcohol dependency are at high risk of their unborn child being born with obstetric that can causes mental retardation, facial deformity, and other neurological problems.

    asked by Denise
  76. English

    please show me an example of an in text citation from an article

    asked by Ree

    The Kb for ammonia (NH3) at 25°C is 1.8* 10-5. By using the value of Kb, calculate ΔG° for the equilibrium

    asked by DAN
  78. Chem

    Calculate the final temperature when a 16.2 gram sample of ice at 0oC is placed into a styrofoam cup containing 128 grams of water at 79.0 oC. Assume that there is no loss or gain of heat from the surroundings. Heat of fusion of ice = 333 Jg-1 Specific

    asked by Chase
  79. maths

    prove that tan^2 (x/2)=1-cosx/1+cosx

    asked by mwewa
  80. Res/341

    what are some ways to reduce bias in focus groups or any data collection method?

    asked by anita
  81. physics

    an object accelerates uniformly along a straight line from a velocity of 10ms-1 until 25ms-1 in 5s. a)the velocity of the object during the first 10s of motion b)the time taken to reach a final velocity 50ms-1

    asked by shiva
  82. visual

    What is the diffrent kind of lines in art

    asked by telicia
  83. math


    asked by rasheem
  84. Math

    If f(x)=x^5+2x+1, then (f^-1)'(4)=?

    asked by Anonymous
  85. 12th Grade Life Orientation

    in 10-15 lines critically discuss five ways in which the human or environmental impact causes within any community in South Africa.

    asked by Anonymous
  86. precal


    asked by Olivia
  87. science


    asked by Anonymous
  88. geometry

    A tent is shaped like a pyramid. It has a square base measuring 8 feet on a side and a height of 6 feet. What is the volume of the tent?

    asked by geri
  89. precal


    asked by olivia
  90. precal


    asked by Anonymous
  91. English

    I forgot to include this sentence. Thank you. If you want, you can help me write a short description of your school including the summer courses and the students' mobility opportunities.

    asked by Matthew
  92. precal


    asked by Anonymous
  93. English

    Can you please help check the sentence again. I forgot to include the verb. If you want, you can help me write a short description of your school including the summer courses and the students' mobility opportunities your school offers.

    asked by Matthew
  94. biology

    1. what is the function of the menstrual cycle? 2. Trace the path of a sperm from the male body? 3. Examine the two small lungs found on either side of the heart? Describe their size and function?

    asked by Guru
  95. algebra

    If you need 3 pounds of fertilizer for 100 square feet of soil, how much do you need for 4 sq.ft.; 6 sq.ft.; 8 sq.ft.?

    asked by Claire
  96. Statistics

    team members estimated that a group of participants spent an average of $90.00 with a standard deviation of $15.00. What is the maximum amount that you can spend and still be in the lowest 20%? and the minimum that you need to be in the highest 15%?

    asked by Diane
  97. child psychology

    which young adult is long-term identitity foreclosure or diffusion A. college graduate who switches majors B.An aspiring chef who has no opportunity for culinary training. C.A young woman with several possible vocational choices. D.A peace corps volunteer.

    asked by sarah
  98. BioChem

    Write the chemical equation for the reaction that occurs when you add NaOH solution to NaH2PO4/Na2HPO4 buffer solution

    asked by Megan
  99. physics

    A certain uniform spring has spring constant k. Now the spring is cut in half. What is the relationship between k and the spring constant k' of each resulting smaller spring? (Use the following as necessary: k)

    asked by Anonymous
  100. physics

    A 7000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in the figure below. Both springs are described by Hooke's law and have spring constants with k1 = 1700 N/m

    asked by Anonymous
  101. English

    Writeacher, can you please check these sentences? Thank you very much. 1) My list included 27 students, including an older student from class IV F who would like to be involved in a science project to be carried out in English. 2) As you can see 17 of your

    asked by Matthew
  102. Types of Business writing

    BUSINESS LETTER ASSIGNMENT Assigment: write a business letter according to the background. Background:Assume that you’ve worked for the last five years as an administrative assistant for the Human Resources Department of Broadworth General Hospital. The

    asked by Shawna
  103. math

    what is the number pattern 17-23-?-18-20-25-21-9-15-16?

    asked by Anonymous
  104. English

    In some the sections in collection 6, setting plays an important role in shaping the writers idea of what home is,using a chart below, briefly describe the setting of three sections, and tell how the three writers feel about their homes, include at least

    asked by MCBOBO
  105. physics

    A child loses his balloon, which rises slowly into the sky. If the balloon is 13 cm in diameter when the child loses it, what is its diameter at the following altitudes? Assume that the balloon is very flexible and so surface tension can be neglected. (a)

    asked by sara
  106. Chemistry

    500.0mL of 0.220 mol/L HCl(aq) was added to a high quality insulated calorimeter containing 500.0mL of 0.200mol/L NaOH(aq).Both solutions had a density of 1.000g/mL & a specific heat of 4.184 J/g.K. The calorimeter had a heat capacity of 850.0 J/degree C.

    asked by Meenaakshi
  107. Physics-11

    A 12 kg object is at the top of a 41 degree inclined ramp. It is released and it reaches the bottom of the 85 m ramp in 2.3 seconds. what is the force of friction between the object and the ramp? What is the coefficient of friction? Can someone help me do

    asked by G
  108. World History

    5. The success of the blizkrieg depended mainly on superiority in a. nuclear weapons b. naval power c. defense strategy d. mobile ground troops C? 10. It was difficult to write a peace treaty according to the Fourteen Points because the a. Germans wouldn't

    asked by mysterychicken
  109. economics

    Young Saul, a budding mctaemhtiaian and printer, is making himself a fake ID. He needs it to say he’s 21. The problem is he’s not using a computer, but rather he has some symbols he’s bought from the store, and that’s it. He has

    asked by GWPeAYsBnmh
  110. math

    3x-5y=24 3x+5y=6

    asked by Jenni
  111. Math

    How would I write 150,783 in words? Is it one hundred fifty thousand seven hundred and eighty three???

    asked by Kim Breed
  112. calculus

    If the sun rises at 6 AM and is directly overhead at 12 noon, estimate the time (hour and minutes) when a 34-foot tree will have a 24-foot shadow.

    asked by Dan
  113. Math

    If f(x)= {-5x+5x^2 -1

    asked by Anonymous
  114. statistics

    A fast food chain claims that all of its quick win soda cups are winners. (There is a little tab you pull off the side of the cup which says either you are a winner or not. Lisa bought 8 sodas to try her luck. What is the probability that at least 5cups

    asked by lola
  115. statistics

    At a small college it is known from previous years that 35% of all college freshman start in college algebra. The new freshman class has 100 students in it, What is the probability that between 35 and 42 freshman will start in college algebra? Is it

    asked by lola
  116. conics

    given A(6,8) and B(-6,-8) write an equation in terms of x and y for all points P(x,y) such that segment PA is perpendicular to segment PB. simplify the equation and interpret your answer.

    asked by tatiana
  117. Calculus Grade 12 University

    The cost, in dollars, for the production of x felt-tipped pens is C(x) = 48 000 + 0.28x + 0.00001x^2, and the revenue is R(x) = 0.68x - 0.00001x^2. What production level maximizes profit?

    asked by Julie
  118. Calculus Grade 12 University

    Use the second derivative test to find the local minimum and maximum values of each function, wherever possible. A) f(x) = 16/x + x^2 B) s(t) = t^4 - 8t^3

    asked by Julie
  119. chemistry

    i need a molecular equation, ionic and net ionic equation for this : K_3 PO_4 + 〖Ca(NO〗_3 )_2

    asked by Anonymous
  120. Calculus Grade 12 University

    Determine the critical numbers and find the absolute maximum and minimum values of the function y = 8x^3 + x^4 for x e [-8,2]

    asked by Julie
  121. Math

    Find the maximum value of f(x)=5x^(2/3)-x^(5/3) on [1,4]. thank you!

    asked by Anonymous
  122. pol science

    Locate indiana state’s constitution and examine the major elements and articles of the constitution. Review its contents and functions. Search for information about the judicial, educational, and social service systems offered in indiana state and the

    asked by jamie
  123. chemistry 111

    Write an account of your daily life routine that would include measurements in metric units only.

    asked by Anonymous
  124. Chemistry

    Suppose you want to heat a mug of water (250mL) from room temperature at 25oC to 100oC to make a cup of tea. How much energy (in units of calories and joules) would you need from your microwave? Please make chart!!

    asked by lop
  125. Geography

    Can someone check these for me? 1.What problem has been at the heart of the intense political struggles in Central America? Unequal distribution of usable land is the heart of the political struggle. There is a shortage of farmland in order to meet the

    asked by Ella
  126. physics

    A vibration platform oscillates up and down with an amplitude of 8.8 cm at a controlled variable frequency. Suppose a small rock of unknown mass is placed on the platform. At what frequency will the rock just begin to leave the surface so that it starts to

    asked by Katie
  127. Social Studies- Rome and Christianity

    How did the acceptance of Christianity change life in the Roman empire?

    asked by Cicilia
  128. physics

    A 59.1 kg ice skater, moving at 13.3 m/s, crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 6.65 m/s. Suppose the average force a skater experience without breaking a bone is 4656 N. If the impact time

    asked by Anonymous
  129. statistics

    Let U, V be random numbers chosen independently from the interval [0; 1] with uniform distribution. Find the cumulative distribution and density of each of the variables (a) Y = U + V. (b) Y = Absolute value of (U - V).

    asked by oriana
  130. physics

    A 59.1 kg ice skater, moving at 13.3 m/s, crashes into a stationary skater of equal mass. After the collision, the two skaters move as a unit at 6.65 m/s. Suppose the average force a skater experience without breaking a bone is 4656 N. If the impact time

    asked by Anonymous
  131. Math

    How do you find the surface area of Prisms and cylinders? The stuff in my math workbook does not help me like at all! Please Help!

    asked by Jessie
  132. math percentiges

    If the shoes cost 80.00 and i can get 30% off how would i set that problem up?

    asked by john
  133. chem

    calculate the pH of 0.25 M formic acid and 0.40 M sodium formate

    asked by brooke
  134. chem pH

    calculate the pH when 10 mL of .511 M sodium acetate and 20.00 mL of 0.350 M acetic acid

    asked by brooke
  135. statics

    Suppose we want to estimate the average number of purchases in a given hour in a local convenience store. Using this example, describe in your own words how you would go about determining this average through: a. Drawing a random sample b. Drawing a

    asked by Anonymous
  136. RUBY MS

    what is 8.3% of 132,000,000

    asked by J
  137. Chemistry

    How many mL of 3.0 M HCL are required to neutralize 250 mL of 2.0 M MgCL2 ?

    asked by David
  138. Chemistry

    How many grams of water are formed when 250 mL of 2.0 M Mg(OH)2 are neutralized by a solution of HCL ?

    asked by David
  139. World History

    Are these in correct chronological order? 1- Annexation of Austria 2- Nazi-Soviet Pact 3- Surrender of France 4- Attack on Pearl Harbor 5- Dropping of Atomic Bomb on Hiroshima Thanks -MC

    asked by mysterychicken
  140. World History

    I need help putting these in chronological order: Munich agreement Attack on Poland Invasion of the Soviet Union Recapture of the Philippines by Allies Invasion of Italy Thanks -MC

    asked by mysterychicken
  141. Addiction paper

    Thesis statment : The physiology of alcohol dependence causes physiological aspects of the obstetric and the effect of alcohol during pregnancy can cause mental retardation, facial deformity, and other neurological problems.

    asked by Denise
  142. Algebra 2

    (2x^3-x^2-48x+15)/(x-5) Divide and find the quotient and remainder?

    asked by Nancy
  143. math

    each set of probabilities is associated with a rolling cube. What numbers are marked on the faces of each cube? P(2)=1/3 P(4)=1/3 P(6)=1/3

    asked by Max
  144. English

    Can you please check these sentences and tell me which one are possible? Thank you. 1) He didn't let on the secret to anyone. He didn't let out the secret to anyone. 2) He didn't let on that he knew Mary's secret. He didn't let out that he knew Mary's

    asked by Matthew
  145. math

    alex has just been fouled in a one and one free throw situation what is the probability he will score 0 poins? 1 point? 2 points?

    asked by Anonymous
  146. math

    30 3/4 x 60 3/8 what is the area of the new building?

    asked by angie