1. Chemsitry

    You are given a colored solution that is labeled 1M. You need to prepare a solution from this that is 0.5 M. Describe your procedure in detail.

    asked by Rucha on November 17, 2015
  2. Chemistry

    A current of 4.60 A is passed through a Cr(NO3)2 solution for 1.10 hours. How much chromium is plated out of the solution?

    asked by Help on April 16, 2013
  3. Chemistry

    How many mL of water would you add to 32 mL of 0.62 M ammonium chloride stock solution to make a 0.3 M solution?

    asked by Ainsley on May 21, 2018
  4. chemistry

    If 5.29 g of CuNO3 is dissolved in water to make a 0.370 M solution, what is the volume of the solution?

    asked by Rasschael on November 18, 2015
  5. chem

    why is it necessary to heat the oxalic acid solution before titrating it with the potassium permanganate solution

    asked by mAddee on July 20, 2008
  6. chemistry

    How many grams of NaOH should be dissolved in 1 litre of solution to prepare a solution with pH value12

    asked by sanya on June 2, 2010
  7. chemistry

    calculate the molarity and normality of a solution containing 4.0 g NaOH in 500 cm3 solution

    asked by fabian on December 14, 2010
  8. Chemistry

    What is the molarity of the resulting solution when 300. mL of a 0.400 M solution is diluted to 800. mL?

    asked by Ivy on December 6, 2010
  9. chemistry

    8.00 g of are dissolved in water to make 3.00 l of solution. What is the concentration of hydronium ions, , in this solution?

    asked by leo on November 15, 2009
  10. 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
  11. Algebra 2 URGENT

    How much water must be evaporated from a 300 L tank of 2% salt solution to obtain a 5% solution?

    asked by Trisan on October 19, 2009
  12. Chemistry

    Codeine is added to 100ml of water until the solution concentration is 0.800M. What is the pH of this solution?

    asked by Anonymous on April 26, 2012
  13. Chemistry

    What volume of a 0.500 M NaOH solution is needed to neutralize 60.0 mL of 0.15 M HCl solution?

    asked by Nasir on May 20, 2017
  14. chemistry

    If 7.63 g of CuNO3 is dissolved in water to make a 0.180 M solution, what is the volume of the solution?

    asked by Felicia Fancybottom on February 7, 2015
  15. 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
  16. calculus

    Find the particular solution to y ′ = sin(x) given the general solution is y = C − cos(x) and the initial condition y(pi/2)=1

    asked by Anonymous on July 17, 2015
  17. chemistry

    If 8.16 g of CuNO3 is dissolved in water to make a 0.500 M solution, what is the volume of the solution?

    asked by Dustin on November 9, 2014
  18. Science

    What is the pH of 115 mL of a 1.50 m solution of HNO2 that is titrated with a 1.50 M solution of LiOH at the equivelence point?

    asked by Jake on June 20, 2012
  19. chemistry

    calculate the molarity of the solution- 0.56 mole of BaCl2 in 100.0mL of solution.

    asked by brandy on February 8, 2011
  20. Chemistry

    48.0 mL of Ca(OH)2 solution was titrated with 19.2 mL of 0.385 mL mol HNO3. Determine the molarity of the Ca(OH)2 solution.

    asked by Jc on July 22, 2017
  21. chemistry

    A current of 3.04 A is passed through a Cr(NO3)2 solution for 1.80 hours. How much chromium is plated out of the solution?

    asked by Lana on April 17, 2013
  22. Chemistry

    You took 7.15 mL of the 2.20 M solution and diluted it. It's absorbance is 0.605. What is the concentration of the new solution? I have no idea where to even start.

    asked by Ciara on September 27, 2016
  23. chemistry

    Calculate the mass of solute of hydrogen peroxide in a 35% solution if 450 ml of solution is being used

    asked by Emmee on February 22, 2012
  24. chemistry 2

    The pH of a Ba(OH)2 solution is 10.66. What is the hydroxide concentration? If the solution volume is 125ml, how many grams of Ba(OH)2 have been dissolved?

    asked by ralph on April 18, 2008
  25. Chemistry

    A current of 4.60 A is passed through a Cr(NO3)2 solution for 1.10 hours. How much chromium is plated out of the solution?

    asked by Help on April 16, 2013
  26. Chemistry

    .012 mol of solid NaOH is added to a 1 L solution of HCl 0.01 M. What is the pH of the solution?

    asked by scilover on May 13, 2013
  27. Chemistry 104

    A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?

    asked by Mona on May 8, 2014
  28. Intro to chemistry

    a salt solution has a density of 1.15 g/mL and a volume of 0.425L. what is the mass in kg of this solution? I just need to know how to do it period

    asked by Gage on September 15, 2014
  29. chemistry

    the dencity of 3 molal solution of NaOH is 1.110g/mL calculate the molarity of the solution

    asked by anant on June 30, 2012
  30. College Chemistry

    A solution of sulfuric acid is 40.0% by mass and it has a density of 1.30g/mL, what is the molarity of the solution?

    asked by Anonymous on February 3, 2011
  31. Chemistry

    9. A solution has 48 grams of LiOH dissovled In 100 L of water. What is its [OH-]? 10. What is the pH of the solution in question 9?

    asked by Emma on February 26, 2014
  32. Chemistry

    What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? a-0.04M b-0.5M c-1M d-2M

    asked by John on March 5, 2008
  33. chemistry 2 college

    explain how to find the mass of solute in the solution: 50.0g of solvent in a 10.0% NaCl solution?

    asked by deedee on March 24, 2013
  34. Chemistry

    If 8.87 g of CuNO3 is dissolved in water to make a 0.500 M solution, what is the volume of the solution?

    asked by Dalton Steele on December 11, 2016
  35. chemistry

    To 100 mL of a 0.1M NH3(Kb=1.8*10-5)solution,200mL of a 0.1M NaOH have been obtained.Calculate the pH of the solution.

    asked by Anonymous on July 7, 2016
  36. Chemistry

    how many milliliters of a 2.61 m h2so4 solution are needed to neutralize 71.50 ml of a 0.855 m koh solution

    asked by Anonymous on December 11, 2015
  37. Chem Scc

    5.82 g of CuNO3 is dissolved in water to make a 0.240 M solution. What is the volume of the solution?

    asked by Anonymous on July 9, 2012
  38. CHEMISTRY

    2HBr+Mg(OH)2 -> MgBr2+2H2O how many mL of a 0.2 M HBr solution is required to react with 40 mL of a 0.40 M Mg(OH)2 solution

    asked by jack on September 7, 2017
  39. chemistry

    An aqueos solution is 65%(v/v) rubbing alcohol.How many millimeters of water are in a 95-mL sample of this solution?

    asked by Hector on February 13, 2011
  40. pharmacy math

    if 500 ml of a 15% solution is diluted to 1500 ml, how would you label the final strength of the solution?

    asked by cleondra on December 7, 2012
  41. Ph CHEM

    A solution is found to contain 1 x 10-4 OH− ions, determine the pH of this solution. I did this problem and got 4 but it is not going in as correct. -log(1*10^-4)=4

    asked by Lara on November 27, 2012
  42. chemistry

    now lets say that this scientist wants to make 50 mL of a 0.250 M KC solution. How much of the 1.00 M "stock" solution whould he use

    asked by heather on May 25, 2011
  43. chemistry

    What is the pH of a solution in which 296 mL of HCl measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?

    asked by Angel on August 8, 2011
  44. Chemistry

    If 7.83 g FeCl3(s) is dissolved in enough water to make 2.50 L of solution, what is the concentration of Fe3+ in the solution?

    asked by Kevin on October 9, 2009
  45. chemistry

    A current of 3.78 A is passed through a Pb(NO3)2 solution for 1.40 hours. How much lead is plated out of the solution?

    asked by Andrew on April 15, 2013
  46. science

    Calculate the molarity of a solution which contains 6.456g of Na2CO3 dissolved in 250.0 ml of solution.

    asked by Steph on February 1, 2015
  47. chemistry

    You have 14.0mL of a 0.12M NaOH solution. How many moles of HCl will it take to neutralize this solution?

    asked by Savannah on March 1, 2015
  48. chem 100

    What is the pH of a solution prepared by dissolving 7.5 g HCl in water to make 415 mL of solution?

    asked by yesi on May 10, 2011
  49. chemistry

    If you have 200.0 mL of a 30.0% aqueous solution of isopropyl alcohol, what volume of water is in the solution?

    asked by leilah on March 27, 2011
  50. chemistry

    A solution of salt in water conducts electricity, but a solution of sugar does not Explain why

    asked by john on May 28, 2009
  51. chemistry 101

    What is the pH of a solution in which 296 mL of HCl g, measured at 28.0 C and 1.02 atm, is dissolved in 1.5 L of aqueous solution?

    asked by Angel on August 10, 2011
  52. chemistry

    what final volume in liters of a 2.5 m solution of sodium nitrate can be made using 25.0g of solution

    asked by andrew b on March 15, 2011
  53. chemistry

    what is the molarity of solution made from the equivalent of 125 g of sodium nitrate in 1.0 l of solution

    asked by andrew b on March 15, 2011
  54. chemistry

    150 mL of water is added to 50 mL of the solution produced in question 3. Calculate the new pH of the solution.

    asked by Anonymous on October 17, 2013
  55. Chemistry

    how many milliliters of a 2.61 m h2so4 solution are needed to neutralize 71.50 ml of a 0.855 m koh solution

    asked by Patty on December 11, 2015
  56. chemistry

    B-Mercaptoethanol is available as a 98% (w/w) solution, sp gr 1.114. What voulume is needed to prepare 0.100 L of a 50.0 mM solution. fw=78.13

    asked by Jessica on August 28, 2011
  57. Chemistry

    Molefraction of water in sulphuric acid solution us 0.85 calculate the molality of the solution

    asked by Anonymous on May 4, 2019
  58. chemistry

    A solution with a pH of 2.0 has a hydronium ion concentration ten times greater than a solution with a pH of?

    asked by Anonymous on April 15, 2016
  59. Chemistry

    A solution contains 0.284 M sodium nitrite and 0.257 M nitrous acid. What is the pH of the solution?

    asked by Glenna on June 24, 2015
  60. chemistry

    Calculate the ionic strength of a solution that contains 1.45g Na3PO4 in 0.500L of solution.

    asked by tithi on November 17, 2015
  61. Chemistry

    What is the molarity of a saline solution that contains 3.6 g NaCl (58.44 g/mol) dissolved in 100.0 mL of solution?

    asked by Linzy on April 8, 2013
  62. Chemistry

    What is the concentration, in percent (v/v) of a solution containing 50mL of diethyl ether (C4 H10 O) in a 2.5L of solution?

    asked by Kim on April 26, 2010
  63. chemistry

    calculate the molarity and normality of a solution containing 4.0 g NaOH in 500 cm3 solution?

    asked by fabian on December 14, 2010
  64. Chemistry 104

    A current of 3.40 A is passed through a Ni(NO3)2 solution for 1.80 hours. How much nickel is plated out of the solution?

    asked by Rizwan on May 8, 2014
  65. science

    You have 10 ml of a 1:10,000 solution of hydrogen peroxide (H2O2). What is the molar concentration of the solution?

    asked by Marcus on September 5, 2011
  66. chmistry

    5.85 g of sodium chloride dissolved in 250 ml of solution . calculate molarity of the solution

    asked by Anonymous on October 25, 2018
  67. AP Chemistry

    50.0 mL of an HCl solution with a pH of 3.5 neutralizes 200.0 mL of a Ca(OH)2 solution. What is the molarity of the Ca(OH)2 solu- tion?

    asked by Anonymous on March 3, 2014
  68. Chemistry

    A saturated solution at 25 C contains 10g of kclo3 in 50 ml of water. At what temperature does the solution become unsaturated?

    asked by Mingma on February 13, 2012
  69. chemistry

    Calculate the normality of solution containing 4g of sodium hydroxide present in 1 litre of solution ?

    asked by sowmiya on October 1, 2016
  70. Chemistry

    What is the molarity of a solution containing 20 grams of NaOH in 500 milliliters of solution? a-0.04M b-0.5M c-1M d-2M

    asked by Jena on March 5, 2008
  71. chemistry

    An aqueos solution is 65%(v/v) rubbing alcohol.How many millimeters of water are in a 95-mL sample of this solution?

    asked by Hector on February 13, 2011
  72. chemistry help asap

    A solution of salt in water conducts electricity, but a solution of sugar does not. Explain why?

    asked by tom on May 20, 2009
  73. chemistry

    A 47.7-g sample of SrCl2 is dissolved in 112.5 mL of solution. Calculate the molarity of this solution.

    asked by Jessica on November 20, 2010
  74. chemistry

    A solution containing 26.05 mg of an unknown protein per 23.5 mL solution was found to have an osmotic pressure of 3.75 torr at 44 C.

    asked by M on January 25, 2010
  75. Chemistry

    what mass of AgBr is formed when a solution containing 3.45 g of KBr is mixed with a solution containing 7.28 g AgNO3?

    asked by David on April 14, 2012
  76. Math

    In what proportion should you combine 2:5 soaking solution and distilled water to create 1:20 solution?

    asked by Brianna on March 25, 2017
  77. Chemistry

    Calculate pH for strong base solution: 1.100 g of KOH in 550.0 mL of solution

    asked by Matt D on February 27, 2012
  78. Chemistry

    20 mL of a solution of HCl concentration, neutralized 0,50 g of Na2CO3. What is the Molarity of the acid solution?

    asked by Monica on April 25, 2016
  79. Chemistry

    Normal saline solution is 0.91%w/v. Calculate the concentration of this solution in milligrams per litre (mg/L)

    asked by Korina on December 14, 2010
  80. chemistry

    How many milliliters of a 110mL solution of 1.5 M AlCl3 must be used to make 70mL of a solution that has a concentration of 0.2M Cl–?

    asked by Dave on November 3, 2011
  81. AP Calculus

    Find the particular solution to y ' = 2sin(x) given the general solution is y = C - 2cos(x) and the initial condition y(pi/2) = 1

    asked by Tom on March 26, 2018
  82. Chemistry 2

    An aqueous solution of CuSO4 has a density of 1.3g/ml and is 1.16 molal. Calculate the Molarity of this solution.

    asked by Kelci on July 15, 2011
  83. chemistry

    What is the pH of a solution prepared by dissolving 7.5g HCl in water to make 375mL of solution?

    asked by Brittany on February 27, 2011
  84. Chemistry 101 college

    you have 10 mL of a 1.0 M Ba(OH)2 solution and add it to 2.5 L of water. What is the concentration of hydroxide ionsin the diluted Ba(OH)2 solution?

    asked by Katie on July 19, 2011
  85. Chemistry

    A current of 4.60 A is passed through a Pb(NO3)2 solution for 1.20 hours. How much lead is plated out of the solution?

    asked by Anon on March 29, 2013
  86. Biology

    If a solution A has 10,000 times as many H+ ions as solution B, what is the difference in pH units between the two solutions?

    asked by Alex on September 10, 2012
  87. chemistry

    1 ml of diluted solution is added to 9 ml of deionized water. predist the ph of resulting solution

    asked by Anonymous on July 30, 2010
  88. chemistry

    When Zn(OH)2 was added to 1.00 of a basic solution, 1.24×10−2 of the solid dissolved. What is the concentration of in the final solution?

    asked by Anonymous on March 28, 2012
  89. Biol lab

    If you are given a stock starch solution of 0.5 M, how much water will you add to produce 500 ml of 0.05 M solution?

    asked by Gracie on April 24, 2017
  90. science

    Calculate the molarity of a solution that contains 0.175 mol ZnCl2 in exactly 136 mL of solution.

    asked by mollye on May 2, 2012
  91. science

    If a solution A has 10,000 times as many H+ ions as solution B, what is the difference in pH units between the two solutions?

    asked by Alex on September 10, 2012
  92. chemistry

    What volume of a 0.500 M solution should be diluted to make 250 mL of a 0.400 M solution?

    asked by Jake on April 30, 2014
  93. chemistry

    A saturated solution of kno3 at 70°c is cooled to 10°c. What mass of a solid of precipitate out of solution.

    asked by Riana on December 19, 2012
  94. Chemistry 101 college

    you have 10 mL of a 1.0 M Ba(OH)2 solution and add it to 2.5 L of water. What is the concentration of hydroxide ionsin the diluted Ba(OH)2 solution?

    asked by Katie on July 19, 2011
  95. chemistry

    need help figure out how to do these problem: 1)Calculate the pH of this solution: 1.55 X 10^-2 M HBr 2)Determine the pH of this solution: pOH = 8.3 thanks

    asked by amy on November 30, 2010
  96. Please Help Me With This Chemistry HW Question!

    Should 25 ml of 0.15 M HCL solution be added to 250 mL of buffer solution containing 0.25M HF Ka-7.1 x 10, and 0.40 M NaF at a pH of 3.15 what is the new pH?

    asked by Always on November 25, 2014
  97. chemistry

    8.22 g of CuNO3 is dissolved in water to make a 0.590M solution,what is the volume of the solution

    asked by Nicholas on March 17, 2014
  98. Chem

    In the aqueous solution of H2SO4 its mole fraction is 0.2 then closest value of molality of solution is (1) 13.9 (2) 9.8 (3) 10.2 (4) 11.2

    asked by Naman on March 16, 2016
  99. chem. 7

    a 20% solution of H2SO4 has a density of 1.14 g/mL. calculate the molarity, normality and molality of the solution.

    asked by Anonymous on December 3, 2010
  100. Chemistry

    You have a stock solution of 16.0 M {{NH}}3. How many milliliters of this solution should you dilute to make 1500 mL of 0.200 M {{NH}}3?

    asked by Veronica on October 7, 2010

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