1. math

    If 400 bricks measuring 81" by 31" are required to build a wall 42 ft. high, how long is the wall?

    asked by Anonymous on January 19, 2017
  2. CHEM

    Calculate the mass of silver chloride required to plate 185 of pure silver.

    asked by Teresha on September 22, 2010
  3. chemistry

    prepare 25.00mL of a standard solution of vitamin C at a concentration of 2.00 mg/mL. What weight of vitamin C is required

    asked by ama neat on February 18, 2012
  4. physics

    a car slows from 22m/s to 3m/s at a constant rate if 2.1m/s. how many seconds are required before the car is traveling at 3m/s

    asked by bob on September 19, 2011
  5. Math

    A certain medicine requires 5 mg per 30 kg of weight.  How much medicine is required for a patient that weighs 271 pounds?

    asked by Aaliyah on January 25, 2017
  6. physics

    Turning a doorknob through 0.53 of a revolution requires 0.10 J of work. What is the torque required to turn the doorknob?

    asked by stoic-rider77 on November 25, 2012
  7. ap chemistry

    What volume of 6.58 M HNO3 is required to prepare 671 mL of a 2.7 M HNO3 solution? Answer in units of mL

    asked by cheri on September 13, 2012
  8. Physics

    What three things are required to produce voltage? These three things are the fundamentals of how an electrical generator works.

    asked by MW on May 17, 2010
  9. maths

    fruit salad recipe needs 1/5 apples and 3/5 grapes. which fruit required in grater amountand by how much

    asked by dhrumi on March 31, 2015
  10. Science

    Calculate the heat required to raise the temperature of 10kg of copper from 20°C to 30°C (S.H.C. of copper = 400J/kg k).

    asked by Ebenezer on February 25, 2014
  11. Chemistry

    What volume of 5.26 M HNO3 is required to prepare 236 mL of a 1.4 M HNO3 solution? Answer in units of mL

    asked by Anonymous on September 15, 2011
  12. chemistry

    calculate the amount of reactants required to produce 150g of H2O in CO2+H2O

    asked by Mac on December 9, 2010
  13. chemistry

    if 24.25 mL of a standard M NaOH solution is required to neutralize 26.00 mL of H2SO4, what is the molarity of the acid solution?

    asked by james on November 3, 2008
  14. chemistry

    How many grams of water are required to completely hydrolyze 0.54 grams of lidocaine? What type of be equation should be used?

    asked by Bob on February 19, 2015
  15. Chemistry Physics

    How many Btu of heat are required to melt 33.0 lb of ice at 32°F and to raise the temperature of the melted ice to 72°F?

    asked by Ben on November 17, 2014
  16. chemistry

    how much energy is required to heat 1.00L of water from 20degrees celcius to 90degress celcius

    asked by shawn on September 29, 2010
  17. Physics

    A 1500 kg car is moving 18 m/s how much force is required to bring the car to a stop in 12 seconds

    asked by Kyeanna on November 2, 2015
  18. Chemistry

    How much heat is required to raise the temperature of 53.5g of water from its melting point to its boiling point?

    asked by Bird on November 4, 2012
  19. Chemistry

    What mass of LiSO4 (110 g/mol) is required to prepare 30mL of 0.20M LiSO4?

    asked by Yazmin on October 21, 2012
  20. Legal Aspects of Health Information

    A doctor applies for medical staff privileges at a hospital. What is the hospital administrator required to do?

    asked by Ella on May 26, 2009
  21. chemistry

    how many joules of heat are required to heat a 75 gram silver spoon from 20celcius to 30 celcius

    asked by Anonymous on August 14, 2010
  22. Chemistry

    One liter of 70% alcohol is needed. How much 95% alcohol is required to make the 70% solution. And thank you for last question and any future ones.

    asked by Jessi on March 24, 2009
  23. chemistry

    I need help. please show step by step? How many milliliters of 1.0 M NaOH would be required to completely neutralize 40.0 mL of 0.60 M HCl?

    asked by Alex on March 20, 2017
  24. chemistry

    give the specific heat for aluminum is 0.900 J/g*c how much energy is required to raise 25.0 g of aluminum from 20.0 to 75.0

    asked by sally on November 2, 2014
  25. Chemistry

    How much heat is required to change 10 grams of ice at 0 deg. C to steam at 100 deg C?

    asked by Ally on February 23, 2010
  26. Physic

    How much energy is required to change a 40 g ice cube from ice at -25°C to steam at 105°C? Answer in J.

    asked by Renee on April 6, 2014
  27. Math

    A room is 45 m x 15 m. What is the least number of rectangle tiles required to pave the floor of the room, if each tile is 50 cm x 1m?

    asked by robin on January 26, 2013
  28. chemistry

    how much heat is required to raise a 54g sample of water from -20 celsius to 90 celsius explain

    asked by dd on December 11, 2014
  29. Chemistry

    One liter of 70% alcohol is needed. How much 95% alcohol is required to make the 70% solution. And thank you for last question and any future ones.

    asked by Jessi on March 24, 2009
  30. chemistry

    how many grams of NaCl required to prepare in 2500 ppm(w/v) NaCl 250 mL solution

    asked by lynda on March 5, 2017
  31. chemistry

    How many milliliters of 3.0 M hydrochloric acid are i required to prepare 500 milliliter of 1.0 M Hydrochloric solution

    asked by Dylan on March 15, 2011
  32. Chemistry

    How many grams of bromine are required to react completely with 3704 grams aluminum chloride?

    asked by Alejandra on March 21, 2013
  33. Math

    How many square meter of wallpaper is required for a wall that has perimeter of 25 feet and 8 feet height

    asked by Azeezat on February 20, 2017
  34. PHYSICS

    WHAT ARE THREE THINGS ARE REQUIRED TO PRODUCE VOLTAGE? THESE THREE THINGS ARE THE FUNDAMENTALS OF HOW AN ELECTRICAL GENERATOR WORKS.

    asked by PHYSICSHELP on April 20, 2010
  35. Chemistry

    what would be the molarity of a KOH solution if 15 mL of the solution required 22.3 mL of 0.085 M HCl to react with the base? 

    asked by Anonymous on March 15, 2011
  36. math

    a square plot with area 440m square if it has to be fenced, how many metres of wire Is required?

    asked by anna on May 22, 2014
  37. science

    A point charge of 0.5C is brought from infinity to a point A in free space.how much work is required to this?

    asked by benjamin on October 10, 2014
  38. Physics

    How many half-lives are required for the number of radioactive nuclei to decrease to 1/10^4 of the initial number?

    asked by Beth on July 27, 2012
  39. chem

    What CH3COONa concentration is required to prepare a buffer solution with a pH of 4.80 if [CH3COOH] = 0.150 M? Ka of CH3COOH = 1.8 10-5.

    asked by hannah on March 19, 2013
  40. chemistry

    if 22.5 mL of 0.383 M HCl are required to completely neutralize 20.0 mL of KOH, what is the molarity of the KOH solution?

    asked by lavonne on October 13, 2010
  41. Chemistry

    What is the specific heat of a substance if 35.5 kJ are required to raise the temperature of 345 g of the substance from 69.0°C to 150.0°C?

    asked by Megan on March 8, 2010
  42. AP Chemistry

    What volume of 6.48 M HNO3 is required to prepare 301 mL of a 1.2 M HNO3 solution? Answer in units of mL.

    asked by Anonymous on October 24, 2010
  43. math

    a tank is 3/5 full ofwater 50 litre more required to fill it up. how many litres can tank hold..??

    asked by ritika on April 20, 2015
  44. physics

    how much work is required to lift a 10 newton weight from 4.0 meters to 40.0 meters above the surface of earth

    asked by abu on February 15, 2011
  45. Calculus

    A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3

    asked by Courtney on December 5, 2011
  46. Chemistry

    What is the specific heat of a substance if 26.0 kJ are required to raise the temperature of 250. g of the substance from 34.0°C to 201.0°C?

    asked by Tiffany on March 7, 2010
  47. math for laboratory science

    Determine the quantity of stock 75.0% v/v EtOH required to prepare 300ml of a 25.0% v/v EtOH solution

    asked by mikela on May 12, 2013
  48. chemistry

    How many milliliters of .50 M NaOH solution are required to titrate 40.0 mL of a 0.10 M H2SO4 solution to an end joint?

    asked by lacey on March 6, 2010
  49. Chemistry

    how many grams of ethylene (C2H4) are required for the complete reaction of 31.7 grams of hydrogen gas?

    asked by Vilma on October 1, 2012
  50. physical science

    suppose you want to heat 40kg of water by 20 degrees celcius. how many joules of heat are required?

    asked by Rosemary on October 2, 2008
  51. Physics

    A crate has a mass 24 kg. What applied force is required to produce an acceleration of 3m/s^2 if the frictional force is 90 N.

    asked by Adam on October 23, 2010
  52. Chemistry

    The number of moles of KMnO4 required to react with 5 moles of H2O2 in acidic medium is ?

    asked by Clandestine on April 15, 2013
  53. Calculus

    A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3

    asked by Courtney on December 5, 2011
  54. Chemistry

    Calculate the heat (in kJ) required to change 40.0g of ice at -30.0 deg C to steam at 150.0 deg C?

    asked by Caitlin on March 6, 2012
  55. chem

    So I was given this question that I havetried to solve multiple times but I just can't get it. Here it is[it's a long one!] Nitroglycerin is a shock-sensative liquid that detonates by the reaction: 4 C3H5(NO3)3 -> 6 N2 + 10 H20 + 12CO2 + 02 Calculate the

    asked by amy on May 1, 2007
  56. Finance

    Houston Inc. is considering a project which involves building a new refrigerated warehouse which will cost $7,000,000 at year = 0 and which is expected to have before tax operating cash flows of $500,000 at the end of each of the next 20 years. The Net

    asked by McLocs on October 21, 2011
  57. Physics

    A car slows from 17 m/s to 2.0 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 2.0 m/s?

    asked by Shelby on September 13, 2012
  58. biology

    Which candy required more base per gram of candy sweet tarts or smarties

    asked by Anonymous on May 5, 2014
  59. chemistry

    Determine the volume (in mL) of a 0.184 M CaCl2 solution that would be required to obtain 73.4 g of CaCl2.

    asked by jessica on April 23, 2010
  60. Chemistry

    Calculate the volume of 2.00 M solution of KOH that is required to neutralize 30.0 mL of 1.00 M solution of HNO3.

    asked by Chemistry on May 6, 2014
  61. Chemistry

    Calculate the volume of 2.00 M solution of KOH that is required to neutralize 30.0 mL of 1.00 M solution of HNO3.

    asked by Tina on May 6, 2014
  62. Chemistry

    How+much+zinc+%28density+7.14+g%2Fcm3%29+is+required+to+produce+13+grams+of+zinc+chloride

    asked by Brenda on April 17, 2016
  63. chemistry

    what is the mass of oxalic acid required to prepare 250cm3 of a 1.5M solution of the acid

    asked by Nalukyamuzi on August 2, 2018
  64. Chemistry

    Calculate the volume of 0.5 molar HCl required to titrate 22ml of 0.5 molar Ba(OH)2

    asked by Sushmita on November 11, 2017
  65. chemistry

    how many joules of heat are required to heat 149g of aluminum from 31.0 celcius to 75.5 celsius

    asked by katie on September 30, 2016
  66. Math

    A hall feature 16 MTR by 12 MTR. How many sq.tiles 25 cm will be required to pave its floor

    asked by Harsh Raj on July 14, 2017
  67. chemistry

    a first order reaction has a rate constant of 7.5 x 10^-3/s. The time required for th reaction to be 60% complete is

    asked by Angel on June 17, 2008
  68. Chemistry II

    How much energy would be required to heat 60 grams of water from -50 degrees C to 200 degrees C?

    asked by Michelle on March 14, 2011
  69. Chenmistry

    Fe2O3 + 3C = 2Fe + 3CO How many grams of C are required to react with 2.50 moles of Fe2O3 ?

    asked by Marcie on April 1, 2013
  70. chemistry

    How much heat in joules is required to heat a 44g sample of aluminum from 76 F to 148 F?

    asked by tish on February 26, 2013
  71. Chemistry

    How many grams of CuCl2 are required to prepare 1270. g of a 1.75% (by mass) CuCl2 solution?

    asked by John on December 2, 2012
  72. physical science

    suppose you want to heat 40g of water by 20c.how many joules of heat are required

    asked by Anonymous on October 12, 2012
  73. Physics

    What average force is required to stop an 1700 car in 7.0 if the car is traveling at 75 ?

    asked by Ariel on September 8, 2010
  74. chemistry

    500ml of 0.1M CaCl2 is required for protimes. How many grams of CaCl2 * H2O should you weight out?

    asked by j on September 5, 2010
  75. Chemistry

    Given the reaction: Ni (s) + 4 CO (g)  Ni(CO)4 (g) E = –154 kJ, how many kilograms of CO are required for this reaction to release 756 kJ of energy?

    asked by justin on August 20, 2013
  76. Physics

    how much work is required to extend an exercise spring by 15 cm if the spring constant k has the value of 800 N/m

    asked by John on September 13, 2010
  77. Physics

    A car slows from 23 m/s to 3.4 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 3.4 m/s?

    asked by Alexis on September 7, 2014
  78. Chemistry

    How many grams of bromine are required to react completely with 37.4 grams aluminum chloride?

    asked by Alejandra on March 21, 2013
  79. math

    Bethany has 43 apples. Write a subtraction story about the apples that would required regrouping.

    asked by alma on August 10, 2011
  80. math

    2/3 cups of milk are required for 6 pancakes. a. How much milk is needed to make 1 pancake?

    asked by as on October 22, 2015
  81. physics

    What average force is required to stop an 1900 car in 6.0 if the car is traveling at 80 ?

    asked by colleen on April 18, 2011
  82. Chemistry

    If 36.00 mL of KMnO4 are required to oxidize 25.00 mL of 0.02932 M NaC2O4 solution, what is the concentration of KMnO4?

    asked by Sydney on November 1, 2010
  83. physics

    A 10-kg mass is moving at a speed of 4.0 m/s. How much work is required to stop the mass? A. 20 J B. 40 J C. 60 J D. 80 J E. 100 J

    asked by dali on March 3, 2017
  84. Regent University

    A point charge of 0.5 is brought to a point a in free space. How much work is required to do this?

    asked by Joseph on August 2, 2015
  85. chemistry

    Calculate the amount of heat required to heat a 42kg sample of ethanol from 14.0C to 18.0C

    asked by Emily on September 4, 2011
  86. Chemistry

    How many calories are required to raise the temperature of 75 grams of water from 20 degrees C to 50 degrees C?

    asked by Hannah on December 14, 2010
  87. chemistry

    what are the step by step methods that are required in adding Na2CO3 to a tank of water ?

    asked by bash on January 13, 2016
  88. History

    The _______ Act required King _______ I to convene Parliament every three years.

    asked by Victoria on January 24, 2014
  89. science

    What pressure is required to reduce 75 mL of a gas at standard conditions to 11 mL at a temperature of 27 ◦C? what pressure would i use?

    asked by perla on March 9, 2014
  90. statistics

    No calculation required. what test would be used to predict what the tuition will be in 20 years if it has gone up the past five years?

    asked by red on May 5, 2013
  91. Chemistry

    how much heat is required to melt an ice cube that is 4.2 cm x 2.1 cm x 2.9 cm? The density of ice is 0.92 g/cm3

    asked by Sam on May 2, 2011
  92. chemistry

    the heat of fusion of water is 335 J/g. How much heat would be required to melt 97.8 g of ice

    asked by Randy on April 24, 2012
  93. Chemistry

    A sample of 10.7 g of O2 reacts completely with CO to form CO2. 2 CO + O2 → 2 CO2. How many grams of CO is required.

    asked by Jennifer on February 20, 2017
  94. Chemistry

    How many grams of MgCl2 are required to make 350mL of a 0.56M solution of MgCl2?

    asked by Jose on February 28, 2011
  95. To Ms. Sue

    How do I calculate how much grain is required to feed you through the chicken you ate for dinner? And is it necessary to really try and calculate it?

    asked by devon on July 14, 2009
  96. chemistry

    how many joules of energy are required to raise 150.0g of water from 15.0 degrees to 45 degrees

    asked by Anonymous on September 27, 2012
  97. physics

    how much work is required to extend an exercise spring by 15 cm if the spring constant k has the value of 800 N/m

    asked by jazmyn on September 14, 2010
  98. english

    we cannot have a peaceful and just society so long as any one group is required to be (responsive, submissive) to another. submissive

    asked by cici on May 22, 2013
  99. Physics

    What average force is required to stop an 1700 kg car in 7.0 s if the car is traveling at 75 km/h?

    asked by Ariel on September 8, 2010
  100. Lone Peak High

    How much of a stock (18.5 M) HCl solution would be required to make 100mL of 0.025 M HCl?

    asked by Annie on June 7, 2014