1. chemistry

    calculate the volume of water in mL needed to make 75% solution containing 50g of CaCl2

    asked by Quinne on March 15, 2011
  2. chemistry

    in order to dilute 40.0 ml of .600 m hcl to .100 m, the volume of water that would need to be added would be?

    asked by Anonymous on March 26, 2012
  3. chemistry

    Determine the volume of H gas needed to react completely with 5.00 L of O to form water ?

    asked by Anonymous on April 20, 2010
  4. science

    based on the relationship between mass and volume.... How much space would 75 grams of water occupy?

    asked by jake on January 6, 2011
  5. AP chemistry

    If 25.0g of water are decomposed at RTP how would you find the volume of hydrogen gas produced?

    asked by Lily on January 6, 2011
  6. Chemistry

    How much corn syrup should be added to water to make 200 ml of a 10% by volume solution?

    asked by P on March 14, 2009
  7. math

    Find the volume of water in a fish tank that is 4 m long, 1.7 m wide, and 54 cm deep?

    asked by pam on February 7, 2011
  8. science

    if 10 mol of hydrogen reacted with oxygen what volume of liquid water could be produced

    asked by jo on September 21, 2009
  9. hydraulics

    Arock weighs 1000N in air and 609N in water.Find its volume.

    asked by Melaku on December 13, 2016
  10. Chemistry

    If 26.4 L of H2 reacted with 13.2 L of O2 at STP, what is the volume of the gaseous water collected assuming that none of it condenses?

    asked by :) on December 11, 2011
  11. Chemistry

    Which measuring device in the Laboratory would be most accurately measure the volume of 25.0 grams of water?

    asked by Coleen on August 6, 2011
  12. phy

    A piece of plastic barely floats in water. If it has a mass of 20g, what is its volume?

    asked by christ on January 24, 2013
  13. science

    a solution made from 35 mL of ethanol and 65 mL of water produces by what percent concentration of volume

    asked by frances on September 26, 2012
  14. science

    A substance has a mass of 12.5 grams and a volume of 9.8 ml.Will the object sink or float in water?

    asked by marshall on March 1, 2013
  15. chemistry

    Suppose this block is dropped into 25.0ml of water. What will be the new volume reading? Help me please . I dot get it!!

    asked by lala on September 22, 2011
  16. physics

    A plastic bobber just barely floats in water. If it weighs 2N in the air, what is its volume

    asked by mike on June 25, 2010
  17. Science

    how many ml of water are present in 250ml of a 15% by volume oguous hydrocloric acid solution?

    asked by Araceli on July 7, 2014
  18. chemistry

    if 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?

    asked by jo on September 21, 2009
  19. Chemistry

    Calculate the volume of water, in milliliters, that would be displaced by a piece of gold weighing 18.2g.

    asked by Anne on September 12, 2012
  20. Chemistry

    Calculate the volume of water, in milliliters, that would be displaced by a piece of gold weighing 18.2g.

    asked by Anne on September 12, 2012
  21. Chemistry

    Calculate the volume of water, in milliliters, that would be displaced by a piece of gold weighing 18.2g.

    asked by Anne on September 12, 2012
  22. Chemistry

    If you have 1 sack of cotton (which is expected to float on water) and were asked to measure the volume, what will you do?

    asked by Kian on July 30, 2011
  23. Chemistry

    If water is added to magnesium nitride, ammonia gas is produced when the mixture is heated. Mg3N2(s) + 3 H2O(l) => 3 MgO(s) + 2 NH3(g) If 11.1 g of magnesium nitride is treated with water, what volume of ammonia gas would be collected at 23°C and 739 mm

    asked by sam on November 18, 2012
  24. Conceptual Physical Science

    When we breathe we inhale oxygen, O2, plus water vapor, O2, and exhale carbon dioxide, CO2, plus water vapor, H2O. Which likely has more mass, the air that we inhale or the same volume of air we exhale? Does breathing cause you to lose or gain weight?

    asked by Laticia on July 10, 2010
  25. chemistry

    A microtube is found to have an ungraduated portion that will contain 0.26 g of water. Upon setting up the experimental apparatus as described in the experiment, a microtube is filled to 0.01 ml with water at 4ºC. At a temperature of 60ºC, the volume of

    asked by Alex on July 24, 2009
  26. Physics

    A rock weighs 140 N in air and has a volume of 0.00273 m3. What is its apparent weight when sub- merged in water? The acceleration of gravity is 9.8 m/s2 . Answer in units of N. If it is submerged in a liquid with a density exactly 1.9 times that of water,

    asked by Laura on November 28, 2010
  27. phyics

    Ethyl alcohol has been added to 190 {\rm mL} of water in a container that has a mass of 140 {\rm g} when empty. The resulting container and liquid mixture has a mass of 450 {\rm g}. What volume of alcohol was added to the water? Express your answer using

    asked by please help on December 4, 2011
  28. Chemistry

    Analysis of Tap water (Hardness) 50.00 mL of tap water was transferred to a 250 mL erlenmyer flask. 10mL of NH3/NH4^+ ph 10 buffer was added to the flask, as well as 6 drops of eriochrome black T indicator. This soln was then titrated with EDTA

    asked by Lauren--PLEASE HELP on November 29, 2009
  29. AP Calc. AB

    If a cylindrical tank holds 100,000 gallons of water, which can be drained from the bottom of the tank in an hour, then Torricelli's Law gives the volume of water remaining in the tank after t minutes as V(t)=100,000(1-(t/50))^2, 0

    asked by Jacke on October 18, 2014
  30. chem/math

    How much heat would be required to warm Earth¡¯s oceans by 1.0 ¡ãC? Assume that the volume of Earth¡¯s oceans is 137 x ¡¼10¡½^7 ¡¼km¡½^3 and that the density of sea water is 1.03 g/cm3. Also assume that the heat capacity of seawater is the

    asked by marie on January 24, 2011
  31. Chemistry

    When a person got onto an airplane, she brought with her a half-full 1.0000 L aluminum water bottle that was closed inside the airport at standard pressure and a temperature of 26.000 C. After the plane takes off and climbs to 36,000. feet, the cabin

    asked by anon on March 6, 2017
  32. Chemistry

    Determine the concentration of Mg2+ (in mmol/L) in the unknown solution (Note: details and additional information to solve the problem are provided in your lab manual): Mass of EDTA: 0.606 g Volume of EDTA used in titration (step 1): 10.48 mL Volume of

    asked by Johnathan on March 14, 2010
  33. Science

    Answer with solution, plz. 1. What is the concentration of the solution by volume when dissolved is used 30 grams & the water is 60 grams. 2. How much solvent in grams is present in a solution with a concentration by volume of 40% the solute of content is

    asked by Rachel on October 3, 2016
  34. Physics

    A new SpaceX rocket is being tested and launches from the ground. The first stage rocket engine provides constant upward acceleration during the burn phase. After the first stage engine burns out, the rocket has risen to 105.0 m and acquired an upward

    asked by pimp on June 1, 2016
  35. Science

    What is the mass of an automobile that weighs 9800 N

    asked by Everett on January 18, 2012
  36. social

    what is the name of the publication of the American automobile assocation?

    asked by j on January 9, 2008
  37. Physics Fluids

    When a block of volume 1.00 × 10–3 m3 is hung from a spring scale, the scale reads 10.0 N. When the same block is then placed in an unknown liquid, it floats with 2/3 of its volume submerged. The density of water is 1.00 × 103 kg/m^3. Determine the

    asked by Drew on April 6, 2015
  38. APR Problem

    After visiting several automobile dealerships, Richard selects the car he wants. He likes its $11,000 price, but financing through the dealer is no bargain. He has $2,200 cash for a down payment, so he needs an $8,800 loan. In shopping at several banks for

    asked by MM on March 9, 2017
  39. Substitution and Income Effects

    Managers are very interested in how a consumer makes a choice among alternatives. In this exercise, we ask you to consider the amount of money you spend purchasing gasoline to operate your automobile for a month and any alternatives available to you

    asked by raja on October 14, 2010
  40. science & technology

    when a body immersed in water from spring balance and shows 100gm weight loss. what is the weight of the body in water? 2)what is the weight of the body in air? 3)what is the upthurst on the body? 4) what is the volume of the body? give reason

    asked by devtanu on January 27, 2016
  41. physics

    a piece of wood 50 cm long , 20 cm wide, 40 cm thick. its density is 0.6 g cm^3. this is connected to a string with negligible mass attached to a piece of lead. what is the mass of the lead and what volume underneath is needed to sink the wood in calm

    asked by romeo on September 22, 2012
  42. Math

    Find the volume of water required to fill a pool with a diameter of 6m and a height of 2m. Keep in mind that the water must travel through a hose before it goes into the pool. Assume the hose is a perfect cylinder. The length of the hose is 8m and the

    asked by Travis on December 14, 2015
  43. Chemistry

    An aqueous solution of ethyl alcohol is made by transfering 1.32 mL of liquid ethyl alcohol to a 50.0 mL volumetric flask, and then adding enough water to fill the flask to the mark. What is the volume/volume percentage of ethyl alcohol in the solution?

    asked by Sasha on March 27, 2017
  44. Chemistry

    Concentrated sulfuric acid is 18.4 molar and has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar the solution has a density of 1.38 grams per milliliter. This concentration of H2SO4 is often used in lead storage

    asked by Kevin on January 9, 2011
  45. measurement

    peter uses an eyedroper to put 5 dropsof coloring into a glass of water?what volume of food coloring does peter put in to water?

    asked by jhon123 on January 13, 2009
  46. 3rd homework

    the water cycle lesson 2 how water changes and moves 1. ____________ water changes from a __________ to a _________________ 2. ____________ water changes from a _________ to a ________________ 3. _________________ Liquid water falls to the ground as

    asked by choconcung on October 27, 2010
  47. chemistry

    Hi Cna someone please tell me what I must out into the Trial 1 column? It would be greatly appreciated. theLab: Determining the Ksp For Ca(OH)2 Purpose: The purpose of this experiment is to determine the Ksp for calcium hydroxide. Experimental Design: A

    asked by Jessica on April 1, 2008
  48. chem

    the volume of 0.220 mol of an ideal gas at 34°C is increased isothermally from an initial volume of 12.0 L. If the final volume is 21.5 L, calculate the entropy change for the process.

    asked by hannah on April 2, 2013
  49. chemistry

    When a volume of H2 reacts with an equal volume of Cl2 (assume you have 1 L of each) at the same temperature and pressure, what volume of product having the formula HCl is formed? Question 4 answers

    asked by Anonymous on January 10, 2011
  50. chemistry

    I have to prepare a 0.2% water solution of n-propanol and a water solution of methanol and isopropanol at 0.2% that can be in the same container. It didn't specify but I'm pretty sure the solutions are v/v%. For the n-propanol a 0.2% solution should just

    asked by making solutions on February 2, 2014
  51. Science

    A)Could you add marbles to a beaker filled with sand and get the same results? B)How does the Particle theory model explain that a substance can be solid while having spaces between its particles? C)Why does 50 ml of water and 5oml of sugar NOT produce 100

    asked by Harmony Ann on February 24, 2014
  52. Physics

    When working with the properties of Saturated Steam. The pressure table supplied states: Pressure kPa = 1100 (P) Temp in Celsius = 184.09 (T) Specific Volume = Sat. Liquid = 1.1330 (Vf) Specific Volume = Sat.Vapor = 177.53 (Vg) Enthalpy = Saturated Liquid

    asked by Danny on July 21, 2013
  53. chem

    A sample containing 6.40 g O2 gas has a volume of 15.0 L. Pressure and temperature remain constant. a. What is the new volume if 0.600 mole O2 gas is added? b. Oxygen is released until the volume is 12.0L. How many moles of O2 are removed? c. What is the

    asked by tracy on November 1, 2012
  54. Physics

    Poiseuille’s equation relates the volumetric flow rate Q (volume per time unit) to the pressure differential ΔP that drives the flow: Q = (πr^4)/(8η) x (ΔP/L) Here η is the viscosity of the fluid and the tube has length L and radius r. A fire

    asked by Jamie on December 3, 2016
  55. Physics

    Please help. To cool a hot bath containing 50L of water at 50 degrees Celsius down to 20degrees Celsius, what volume of cold water at 5 degrees Celsius would be needed? (in litres) and what mass of ice at 0 degrees celcius would be needed? i'm thinking

    asked by Anonymous on June 23, 2015
  56. Calculus

    Two full 48-gallon tanks begin draining at t = 0. Tank Alpha's volume is changing at a constant rate of -16/5 gal/min. The rate at which Tank Bravo's volume is changing is given by r(t)=-1/3t-1 gal/min. a) How much water is in each tank after 5 minutes? b)

    asked by Tyler on April 7, 2014
  57. 9th Grade Math

    Naulluq is cutting ice blocks from the lake for her mothers drinking water tank. The cylindrical tank has a volume of 4x^2π. Once each block has melted, it will have a volume of 3x^2. How many blocks does she need to cut so that her mothers tank will be

    asked by Troy on February 10, 2015
  58. science

    i need information about boiling water this is what i have Boiling water is the temperature at which a liquid bubbles and changes into vapor. You can boil water outside but, only when it’s hot out you can use the stove, or even the mircove. There’s

    asked by Student on November 9, 2018
  59. calculus

    water is poured into a conical paper cup so that the height increases at the constant rate of 1 inch per second. if the cup is 6 inches tall and its top has a radius of 2 inches, how fast is the volume of water in the cup increasing when the height is 3

    asked by rachel on October 16, 2011
  60. chem

    the volume of a certain bacterial cell is 1.39um^3. what is its volume in mm^3? what is the volume of exactly 1e4 cells in liters

    asked by jasmine on September 8, 2014
  61. Chemistry

    What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 13.7 L of water to produce an antifreeze solution with a freezing point of -30.0¡ÆC? (The density of ethylene glycol is 1.11 g/cm3, and the density of water is 1.00 g/cm3.)

    asked by fdqed on November 23, 2009
  62. Chemistry.

    What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 13.7 L of water to produce an antifreeze solution with a freezing point of -30.0¡ÆC? (The density of ethylene glycol is 1.11 g/cm3, and the density of water is 1.00 g/cm3.)

    asked by ? on November 23, 2009
  63. physics

    Ethyl alcohol has been added to 190 {\rm mL} of water in a container that has a mass of 140 {\rm g} when empty. The resulting container and liquid mixture has a mass of 450 {\rm g}. What volume of alcohol was added to the water?

    asked by Anonymous on December 4, 2011
  64. physics

    . Ethyl alcohol has been added to 160 mL of water in a container that has a mass of 130 g when empty. The resulting container and liquid mixture has a mass of 510 g .What volume of alcohol was added to the water? (in mL)

    asked by Sandhya on December 5, 2008
  65. Chemistry-gases

    Nitrogen dioxide reacts with water and oxygen in the atmosphere to produce acid rain. 4NO2(g) + 2H2O(g) + O2(g) = 4HNO3(g) Assuming that the temperature and the pressure remain constant, calculate the volume of air at 1 atm, 20 C, necessary to dilute the

    asked by Rose Bud on March 1, 2012
  66. Chemistry-gases

    Nitrogen dioxide reacts with water and oxygen in the atmosphere to produce acid rain. 4NO2(g) + 2H2O(g) + O2(g) = 4HNO3(g) Assuming that the temperature and the pressure remain constant, calculate the volume of air at 1 atm, 20 C, necessary to dilute the

    asked by Rose Bud on March 1, 2012
  67. CHEMISTRY

    An ethanol-water solution is prepared by dissolving 10.00 ml ethanol C2H5OH (density=0.789g/ml) in sufficient water to produce 100.00 ml of solution with a density of 0.982g/ml. What is the concentration of ethanol in this solution? Expressed as ml.

    asked by ADRIAN on November 13, 2013
  68. Chemistry

    A vessel of 9.49 L in volume contains 3.37 L of pure water at 25¡ÆC. A partial pressure of 4.73 atm of CO2 is quickly injected into the space above the water. Calculate the partial pressure of carbon dioxide remaining once the solution has become

    asked by Sally on February 2, 2007
  69. Chemistry

    A vessel of 9.49 L in volume contains 3.37 L of pure water at 25¡ÆC. A partial pressure of 4.73 atm of CO2 is quickly injected into the space above the water. Calculate the partial pressure of carbon dioxide remaining once the solution has become

    asked by Sally on February 2, 2007
  70. ME

    Problem 3: Consider water as the substance. (a) Find the specific internal energy (Btu/lbm) when T = 500F and P = 375 psia (b) Find the pressure (psia) when T = 500F and v = 0.02024 ft3/lbm (c) Find the specific volume (ft3/lbm) when T = 500F and

    asked by sara on September 19, 2015
  71. vrije universiteit

    Harley Davidson has its engine assembly plant in Milwaukee and its motorcycle assembly plant in Pennsylvania. Engines are transported between the two plants using trucks. Each truck trip costs $1,800. The motorcycle plant assembles and sells 3200

    asked by emal on March 5, 2016
  72. science

    You freeze 92g of water, and it becomes a cube of ice. a. What is the mass of the ice cube? b. The cube's volume os 100cm3. What is it's density? c. Will the ice cube float or sink in water?

    asked by Max on December 7, 2012
  73. chemistry

    A student determined the chloride content of a commercial salt by using the Mohr method. A 0.5324 -g sample of the salt was dissolved in distilled water and diluted to a final volume of 250. mL. A 25.-mL aliquot of the analyte solution was then titrated

    asked by tara on April 4, 2011
  74. Chemistry

    When you have 50ml of a 0.25M solution of KI in water. What should the final volume be is you want to reduce the concentration to .10M

    asked by EFonts on October 28, 2014
  75. Chemistry

    To make the following saline solution(375ml 0.5%w/v sodium chloride) what would you weight out? what volume of water would you use?

    asked by Danny on October 22, 2010
  76. science

    1 gram water is converted into vapour at100 degree C find volume change

    asked by ajay on September 1, 2012
  77. Chemistry

    Consider 57.5 mL of a solution of weak acid HA (Ka = 1.00 10-6), which has a pH of 3.800. What volume of water must be added to make the pH = 6.000?

    asked by Brian on February 15, 2009
  78. Physics

    A cube of ice, 28 cm on each side,is melted into a measuring cup. What is the volume of the liquid water -------cm^3

    asked by Beth on November 5, 2016
  79. physics

    A body of mass 10kg in air and 4kg in water calculate the volume and its density

    asked by abigail on January 21, 2014
  80. Chemistry

    If 500.0 mL of hydrogen are collected over water at 20.0 C and 99.3 kPa what will the volume of the dry gas be at STP?

    asked by Christian on May 13, 2007
  81. Science

    What is the best unit for measuring each volume? mL= milliliters L= liters a. Amount of soda in 1 can: mL or L b. Water in a bathtub: mL or L

    asked by Sonic on September 1, 2007
  82. chemistry

    the molarity of a solution composed of 25.4g KHCO3 diluted with water to a total volume of 200 mL

    asked by Colin on October 18, 2011
  83. Orgo lab 1

    how to determine composition of methanol-water from fractional distillation graph of temp/volume?

    asked by Lola on June 13, 2011
  84. chemistry *Dr.Bob222

    Why do firefighters recommend the use of a deluging volume of water when extinguishing an oxidizer-supported fire?

    asked by Cameron on December 22, 2012
  85. chemistry

    If 500.0 mL of hydrogen are collected over water at 20.0 C and 99.3 kPa what will the volume of the dry gas be at STP?

    asked by Anonymous on May 22, 2012
  86. chemistry

    What volume of water should be added to 50 ml of HNO3 having specific gravity 1.5g ml-1 and 63.0%by weight to have one molar solution

    asked by adarsh on June 13, 2015
  87. math

    In a shower 5cm of a rain falls. Find the volume of water on 2 hectares of land.

    asked by rajesh on December 6, 2015
  88. Chemistry II

    What is the molarity of a solution in which 13.7 g of calcium chloride is dissolved in water to a final volume of 750.0 mL?

    asked by Michelle on September 1, 2009
  89. Physics

    Your friend of mass 150 can just barely float in fresh water. Find her volume.

    asked by Kathy on January 25, 2013
  90. chemistry

    1. To make the following saline solution (375ml 0.5% w/v sodium chloride) what would you weigh out? What volume of water would you use?

    asked by sanam on November 13, 2012
  91. chemistry

    what volume of water at 4 degrees Celsius can be held in a cube whose edge is 3.0cm long?

    asked by the yavull on February 1, 2011
  92. Chemistry

    How do you calculate the heat fusion of ice? I have the initial and final temperatures and volume of the water.

    asked by Becky on April 26, 2011
  93. Chemistry 2

    If a gaseous sample contains 74% N2 by volume, what is the solubility of N2 in water at 25°C and 1.0 atm (kH in H2O at 25°C = 7.0 10-4 mol/Latm)?

    asked by Priya on February 11, 2015
  94. math

    Two liters of water has a volume of ______ cubic centimeters and a mass of _______ kilograms.

    asked by Elisabeth on January 6, 2011
  95. Chemistry

    If a 29.9 g sample of the liquid cyclohexane has a volume of 38.6 mL, what is the specific gravity of the compound? Take the density of water to be 1.00 g/mL.

    asked by Abby on August 30, 2016
  96. Chemistry

    Calculate the volume of hydrogen, in L, produced when 12.15 g of magnesium react completely with water. Assume S..T.P.

    asked by Carlene on September 18, 2013
  97. AP Chemistry

    Consider 67.0 mL of a solution of weak acid HA (Ka = 1.00 10-6), which has a pH of 4.500. What volume of water must be added to make the pH = 5.000?

    asked by Bill on February 7, 2012
  98. SPR,PHYSICS

    A block of wood floats in water with two-Third of its volume submerged its relative density is equal to?

    asked by vianychandra on October 30, 2015
  99. chemistry

    What volume of 16 M nitric acid must be diluted with distilled water to prepare 500.0 mL of 0.50 M HNO3?

    asked by tiffany on August 2, 2009
  100. math

    Two liters of water has a volume of __________ cubic centimeters and a mass of ________ kilograms.

    asked by Elisabeth on January 6, 2011