1. chemistry

    Calculate the pH of the solute in an aqueous solution of 0.0047 M codeine, if the pKa of itsconjugate acid is 8.21. What is the percentage protonation of the solute?

    asked by vivian on May 12, 2011
  2. chem

    The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 (one million) parts of solution. Mathematically by mass: ppm = µg solute / g solution = mg

    asked by mel on November 3, 2007
  3. Chemistry

    An aqueous solution is 8.50% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.024g/mL. Calculate the molality, mole fraction, and molarity of NH4Cl in the solution. I know the formulas needed but I'm not sure where to start. M = moles

    asked by S on January 24, 2012
  4. Chemistry

    The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 parts of solution. (Both solute and solution are measured using the same units.)

    asked by qwerty on January 23, 2019
  5. chem

    Calculate the number of moles of solute present in each of the following solutions. a) 39.0 mg of an aqueous solution that is 1.00 m NaCl b)90.0 g of an aqueous solution that is 2.10% sucrose (C12H22O11) by mass.

    asked by Samantha on January 19, 2013
  6. chemisty lab

    determine the amounts of solute and solvent needed to prepare the following solutions. 2.0 M aqueous NaCl solution 1.0 m aqueous KCl solution 25% by mass aqueous MgCl2 solution

    asked by shaknocka on February 7, 2011
  7. chemistry

    determine the amounts of solute and solvent needed to prepare the following solutions. 2.0 M aqueous NaCl solution 1.0 m aqueous KCl solution 25% by mass aqueous MgCl2 solution

    asked by shaknocka lewis on February 8, 2011
  8. Chemistry

    Which contains more solute particles a 0.10 M aqueous solution of methanol (CH3OH) or a 0.10 M aqueous solution of table salt (NaCl)? Are we supposed to go M*L=moles*(6.022*10^23 solute particles)

    asked by Felix on November 3, 2018
  9. chemistry

    Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute. If the distribution coefficient for the solute between ether and water is 20, calculate the percent of the compound that can be recovered with a single extraction with 13.9 mL of

    asked by samm on November 24, 2013
  10. Chemistry

    Consider 15 mL of an aqueous solution containing 2.0 g of an organic solute. If the distribution coefficient for the solute between ether and water is 20, calculate the percent of the compound that can be recovered with a single extraction with 13.9 mL of

    asked by Anonymous on November 22, 2011
  11. Chemistry

    We have an aqueous solution that contains 22% (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 215 g/mol. The density of the solution is observed to be 1.1 g/mL. What is the molarity of Z in this solution?

    asked by El on March 28, 2016
  12. Chemistry

    Consider an aqueous solution that contains 22 % (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 215.2. The density of the solution is observed to be 1.12 g/mL. What is the molarity of Z in this solution? Answer in grams

    asked by Susan on May 7, 2014
  13. chemistry

    If the solubility of a particular solute is (10 g/100 g H2O) at 20°C, what solution concentration would represent a supersaturated aqueous solution of that solute?

    asked by ashley on February 8, 2011
  14. Chemistry

    Calculate mole solute in solution? I added an amount of an unknown sample to a solution. I found that the molality of the solution is 0.085m and there is 0.0156kg of solvent. Calculate the moles of solute present in solution? Thanks!

    asked by Jones on September 8, 2012
  15. Chemistry

    Calculate mole solute in solution? I added 0.2968g of an unknown to a solution. I found that the molality of the solution is 0.085m and there is 0.0156kg of solvent. Calculate the moles of solute present in solution? Thanks!

    asked by Jones on September 8, 2012
  16. chemistry

    Codeine (C18H21NO3) is a narcotic pain reliever that forms a salt with HCl. What is the pH of 0.064 M codeine hydrochloride (pKb of codeine is 5.80)? Thank you.

    asked by Patrick on October 2, 2015
  17. chemistry

    We have an aqueous solution that contains 47% (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 209 g/mol. The density of the solution is observed to be 1.3 g/mL. What is the molarity of Z in this solution? Answer in units of

    asked by cheri on September 13, 2012
  18. AP chemistry

    We have an aqueous solution that contains 22% (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 173 g/mol. The density of the solution is observed to be 1.4 g/mL. What is the molarity of Z in this solution? Answer in units of

    asked by Anonymous on October 24, 2010
  19. chem II

    calculate the number of moles of solute present in 50.0g of an aqueous solution that is 1.5m NaCl.

    asked by karen on May 2, 2016
  20. chemistry

    Calculate the percent by mass of the solute in each of the following aqueous solutions. (a) 5.10 g of NaBr in 78.2 g of solution

    asked by katiy on April 26, 2012
  21. chemistry

    Calculate the pH and percentage protonation of the solute in an aqueous solution of 0.39 M quinine if the pKa of its conjugate acid is 8.52.

    asked by bob on April 24, 2012
  22. "Given Molality, calculate..."

    "Given: An aqueous solution of C6H12O6 with a density of 1.18 g/ml" I) Calculate Molarity 1) It firsts asks me to, "State the moles of solute" 2) Calculate the mass of the solute in grams - I think I can do this if I know how to get #1 3) Later it also

    asked by Rachel on November 19, 2006
  23. Chemistry

    How do I solve these problems You have 2000. g of aqueous NaOH solution. The percent by mass of the solute is 4.25%. How many grams of NaOH are in the solution? If you have 100.0 mL of a 25.0% aqueous solution of ethanol, what volumes of ethanol and water

    asked by Lucy on October 4, 2014
  24. Chemistry

    Calculate the pOH, pH, and percent protonation of solute in the following aqueous solution. 0.043 M quinine, given that the pKa of its conjugate acid is 8.52

    asked by Sara on May 27, 2010
  25. Chemistry

    The efficacy of certain drugs is affected by pH. Many drugs are absorbed into the blood through cells lining the stomach or the small intestine by direct diffusion across the plasma membrane. Since the interior of the plasma membrane is hydrophobic,

    asked by Aria on September 23, 2016
  26. chemistry

    Calculate the concentration in parts per million (ppm) of the solute in each of the following aqueous solutions (a) 0.00500 g of sodium chloride in 850 mL of solution

    asked by katiy on April 26, 2012
  27. Chemistry

    Calculate the pOH, pH, and percent protonation of solute in the following aqueous solution. 0.059 M quinine, given that the pKa of its conjugate acid is 8.52. Please show me how to do it and not just the answers. Thanks!

    asked by Alania on October 29, 2010
  28. SCIENCE

    (aq) means the solution is dissolved in water used as a solvent. (l) means the COMPOUND (not element, usually) is a pure liquid. (g) means gas and (s) means solid. In the equation below, HCl(aq) + NaOH(aq) -->NaCl(aq) + H2O(l)This means that an aqueous

    asked by DrBob222 on December 11, 2006
  29. chem

    Calculate the mole fraction of the solute in the following aqueous solution: a) .112M C6H12O6 (d=1.006g/ml). b) 3.2% ethanol, by volume (d=.993g/ml); pure CH3CH2OH, d=.789g/ml

    asked by emerald on February 4, 2011
  30. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

    asked by Anonymous on February 10, 2011
  31. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

    asked by Anonymous on February 10, 2011
  32. chemistry

    What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

    asked by Anonymous on February 10, 2011
  33. chemistry

    A compound was found to be composed of the following amounts of elements: 20.00% wt% C, 26.64wt% O, 46.65 wt%N, and 6.71wt%H. A 6.125 grams sample of this compound dissolved in 46.205 grams of water as a solution was found to have a freezing point of

    asked by lucy on April 25, 2013
  34. science

    solubility equillibrium is dynamic equillibrium between undissolved excess solute and solvent or aqueous solution and crystal in a saturated solution. so rate of dissolving = rate of crystalization if any more solute is added it will disrupt equillibrium

    asked by micheal on July 21, 2009
  35. science-chemistry

    Calculate the number of moles of solute present in 450. g of an aqueous NaCl solution that is 0.565 % NaCl by weight

    asked by joe on June 12, 2014
  36. Chemistry

    a change in pressure would have the greatest effect on the solubility of a A. solid in a liquid B. gas in a liquid C.liquid in a liquid D.liquid in a solid in an aqueous solution of potassium chloride, the solute is A. Cl B. KCl C. H20 D. K B for the

    asked by Kat on March 26, 2007
  37. Chemistry

    I have to match the items to the statements below, and I'm stuck! A Dilute B Unsaturated C Saturated D Supersaturated 1. Sodium acetate solution after the excess solute fell out of solution. 2. There is visible solute on the bottom of the container. 3. The

    asked by Lindsay on April 24, 2007
  38. chem

    Kw = KaKb. With this equation you can convert any Ka to Kb and the reverse. Codeine (Cod), a powerful and addictive painkiller, is a weak base. a) Write a reaction to show its basic nature in water. Represent the codeine molecule with Cod. b) The Ka for

    asked by DrBob222 on April 28, 2007
  39. chemistry

    A dilute aqueous solution of CaCl2 contains 0.159 grams of solute per liter of solution. It is fully dissociated. What is the osmotic pressure of the solution against a membrane at 20.0 °C?

    asked by sarah on September 29, 2011
  40. Calculus (need help with only d and e)

    Codeine phosphate is a drug used as a painkiller. A common brand contains 30 mg of codeine. Samples of blood were taken at regular time intervals from a patient who had taken a pill containing 30 mg of codeine. The amount of codeine in the bloodstream was

    asked by Liz on August 13, 2014
  41. Chem 2

    When 3.89 g of a nonelectrolyte solute is dissolved in water to make 835 mL of solution at 26 °C, the solution exerts an osmotic pressure of 825 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is

    asked by Bri on February 20, 2014
  42. Chemistry

    When 3.15 g of a nonelectrolyte solute is dissolved in water to make 135 mL of solution at 21 °C, the solution exerts an osmotic pressure of 869 torr. What is the molar mass of the solute? What is the molar concentration of the solution? How many moles of

    asked by Tsomo on July 6, 2014
  43. Chemistry

    When 3.10 g of a nonelectrolyte solute is dissolved in water to make 755 mL of solution at 26 °C, the solution exerts an osmotic pressure of 821 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is

    asked by LLamaboy on February 4, 2014
  44. Chemistry

    Consider a 9% by mass aqueous ethyl alcohol solution. a.) Calculate the molality of this solution_____m b.) Given that ethyl alcohol is a molecular solute, calculate the freezing point of this solution. ________ degrees Celsius. c.) Consider the boiling

    asked by amber on June 24, 2014
  45. chemistry

    a saturated NH4Cl aqueous solution is prepared in 100g oh water t 25 celsius. how much solute is in solution.

    asked by Mia on December 2, 2015
  46. Chemistry

    A student mixed 15.0 mL of a solution of 0.0200 M ferric chloride FeCl3, with 25.0 mL of water. Calculate the moles of iron ion, Fe +3 in the resulting solution. (I think this is a Dilution problem, but I wasn't really sure how to start it out. Any help

    asked by S on January 23, 2012
  47. chemistry

    Which of the following can be determined if the boiling-point elevation, the mass of solute and the molality of a given solution are known. The identity of the solute The polarity of the solute The size of a molecule of the solute The molecular weight of

    asked by Anonymous on February 25, 2009
  48. chemistry

    How would I calculate the molarity of the resulting solution if 25.0mL of 1.50 M HCL solution is diluted to 500 mL. I know you have to change the milliliters to liters by dividing by 1000 and I know that M= Moles of Solute/Liters of Solute but after that

    asked by Daniel on July 1, 2011
  49. chemistry

    determine the amount of solute needed to make 100ml aqueous solution of NaCl and MgCl2 that will cause a 10 degree change in freezing point. Determine the amounts of solute needed to make 100ml aqueous of AlCl3 and ethanol that will cause a 10 degree

    asked by shaknocka lewis on February 8, 2011
  50. chemistry lab

    determine the amount of solute needed to make 100ml aqueous solution of NaCl and MgCl2 that will cause a 10 degree change in freezing point. Determine the amounts of solute needed to make 100ml aqueous of AlCl3 and ethanol that will cause a 10 degree

    asked by shaknocka on February 7, 2011
  51. science

    Calculate the volume of distiled water to prepare 10%w/v solution of solute if 8g of the solute is to be used.

    asked by yui on March 4, 2011
  52. college chemistry

    .361 g of a non-volatile solute is dissolved in 160.0 g of water. The solute does not react with water nor dissociate in solution. Assume that the resulting solution displays ideal Raoult's law behaviour. At 90 oC the vapour pressure of the solution is

    asked by silver on February 18, 2011
  53. Science

    A solution containing 3.22g of solute in 40.0g of 1,4-dichlorobenzene and its freezing point is 49.2 C. Calculate the molar mass of the solute.

    asked by Nancy on May 30, 2015
  54. Chem Two

    When 2.25 g of a nonelectrolyte solute is dissolved in 125 mL of water at 22 °C, the resulting solution exerts an osmotic pressure of 955 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the

    asked by Jen on July 14, 2012
  55. Chemistry

    When 4.73 g of a nonelectrolyte solute is dissolved in 965 mL of water at 28 °C, the resulting solution exerts an osmotic pressure of 945 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the

    asked by Josh on February 21, 2012
  56. Chemistry

    two solutions are prepared using the same solute solution a: 0.27g of the solute disolves in 27.4g of t-butanol solution b: 0.23g of the solute disolves in 24.8g of cyclohexane which solution has the greatest freesing point change? show calculations and

    asked by Robin on February 18, 2013
  57. Chemistry

    When 4.54 g of a nonelectrolyte solute is dissolved in 565 mL of water at 29 °C, the resulting solution exerts an osmotic pressure of 835 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the

    asked by Jim on February 23, 2013
  58. Chemistry

    two solutions are prepared using the same solute solution a: 0.27g of the solute disolves in 27.4g of t-butanol solution b: 0.23g of the solute disolves in 24.8g of cyclohexane which solution has the greatest freesing point change? show calculations and

    asked by Robin on February 18, 2013
  59. Chemistry URGENT

    I have to match the items to the statements below, and I'm stuck! My answers are in parentheses, but I know that some of them are wrong. Please help if you know how...I would GREATLY appreciate it! A Dilute B Unsaturated C Saturated D Supersaturated 1.

    asked by Lindsay on April 24, 2007
  60. Chemistry

    What is the mole fraction of solute in a 3.26 m aqueous solution?

    asked by Maria on January 25, 2013
  61. Chemistry

    Cyclohexane has a freezing point of 6.6 degree Celsius and a K(f) of 20.0 degree Celsius/m. 1.50g of an unknown solute is dissolved wth 18.0g of cyclohexane. The freezing point of the solution was 1.3 degree Celsius Using this iInformation assuming the

    asked by Michael on May 27, 2013
  62. chemistry

    Which of the following is NOT true for solutes and solvents? A. At least one solvent must be dissolved in a solute to make a solution. B. Solute concentration can be measured in terms of solute moles / solution volume or solute moles / solvent mass. C. A

    asked by Dino on April 4, 2008
  63. Chemistry

    1. An aqueous solution contains 0.154 M ascorbic acid (H2C6H6O6) and 0.196 M hydrobromic acid. Calculate the ascorbate (C6H6O62-) ion concentration in this solution. Can you explain how to do this please? thank you. Also if you can is number 2 missing

    asked by Mohamed on April 26, 2012
  64. pharm

    How much codeine is needed to prepare 120 ml of a cough syrup with a codeine concentration of 15 mg/ml?

    asked by gia on July 19, 2017
  65. Pharmacy

    13. How much codeine is needed to prepare 120 ml of a cough syrup with a codeine concentration of 15 mg/ml? A. 8 gm B. 800 gm C. 1.8 gm D. 180 mg

    asked by TK on January 18, 2017
  66. Physical Chemistry

    When 1.33 g of a nonpolar solute was dissolved in 50.0 g of phenol, the latter's freezing point was lowered by 1.454°C. Calculate the molar mass of the solute. The kf of phenol is 7.27 (K·kg)/mol. What is the normal boiling point of an aqueous solution

    asked by Anonymous on May 24, 2010
  67. chemistry

    2 questions, I'm Having trouble figuring out how to calculate the moles of a solute in a solution based on the molarity and the volume. Here is what I'm working with. 1) "Use molarity of the stock solution of aspirin/Fe(No3)3(aq) (0.0044mol) and the total

    asked by Courtney on November 6, 2013
  68. CHEMISTRY- boiling point

    0.1m aqueous solution of HCl and 0.1m aqueous solution of C6H12O6. calculate the boiling point of each i know the eq. dTb=Kbm but i have no temperatures. this is the question

    asked by lulu78 on October 15, 2010
  69. CHEMISTRY

    Dye of iodine is prepared by dissolving in ethanol , and 1% ( one percent ) of this solution contains 10 g of solute in 1000 g of solution 1) how many grams of solvent is there in the solution ? 2) how many moles of solute ( I2) is there? 3) what is the

    asked by MAD on July 12, 2014
  70. Chemistry

    Calculate the boiling point elevation of a solution made from 15.0 g of a nonelectrolyte solute and 250.0 g of water. the molar mass of the solute is 50.0 g and Kb = 0.51 degrees C/m

    asked by Christina on June 7, 2010
  71. chemistry

    A commercial sample of concentrated aqueous nitric acid (HNO3) is 18.2% nitric acid base mass and has a density of 1.12 g/mL. (a) What is the molarity (M) of the HNO3 solution? (b) What is the molality (m) of the HNO3 solution? -------- I know that.... (a)

    asked by Sarah on January 21, 2009
  72. Chemistry

    calculate the final concentration if 4.0 L of 1.5 M NaCl and 2.0 L of 3.0M NaCl are mixed. I am confused about how to calculate the final concentration. We are currently working on solutions. I think first I need to divide the amount of the solution by the

    asked by Lori on January 30, 2008
  73. Chemistry

    Confused on these, please explain or show work for the answer if you can. :) 1. What is the morality of a water solution that freezes at -0.633°C? 2. What is the freezing point of a solution that contains 1.99 g of a molecular solute of molar mass 58.5

    asked by Lauren on December 6, 2017
  74. math

    Tylenol 3 has 16 mg of Codeine per 11 ml of liquid. A safe dose of Codeine is 4.8 mg/Kg/Day. A patient who weighs 215 pounds needs a Tylenol 3 prescription. There are 2.2 pounds for every 1 kilogram. How many kilograms is this person's mass? How many

    asked by bernadet on January 22, 2017
  75. math

    Tylenol 3 has 16 mg of Codeine per 11 ml of liquid. A safe dose of Codeine is 4.8 mg/Kg/Day. A patient who weighs 215 pounds needs a Tylenol 3 prescription. There are 2.2 pounds for every 1 kilogram. How many kilograms is this person's mass? How many

    asked by sylivia on January 22, 2017
  76. Math

    Tylenol 3 has 16 mg of Codeine per 11 ml of liquid. A safe dose of Codeine is 4.8 mg/Kg/Day. A patient who weighs 215 pounds needs a Tylenol 3 prescription. There are 2.2 pounds for every 1 kilogram. How many kilograms is this person's mass? How many

    asked by Aria on January 23, 2017
  77. chem

    Calculate the mole fraction of total ions in an aqueous solution prepared by dissolving .400 moles of MgCl2 in 850.0g of water. mole fraction =amount solute(in mols) /total amount of solute and solvent (in mols) so wouldn't it be .400/ .400+ 47.2 which is

    asked by natash on May 11, 2008
  78. Chemistry

    An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic. The solution is weakly conducting compared with a solution of NaCl of the same concentration. Which of the following substances could the unknown be: KOH,NH3,HNO3,

    asked by Anon on October 31, 2011
  79. Chemistry

    Identify the solvent and the solute in vinegar, a dilute aqueous solution of acetic acid.

    asked by Danny on April 13, 2010
  80. Chemistry

    What is the mole fraction of solute and the molal concentration for an aqueous solution that is 19.0% NaOH by mass?

    asked by Heather on February 21, 2012
  81. Chemistry

    Identify the solvent and the solute in vinegar, a dilute aqueous solution of acetic acid.

    asked by Danny on April 13, 2010
  82. Chemistry

    what is the mole fraction of solute molality concertration for an aqueous solution that is 19% NaOH by mass?

    asked by Josh on July 12, 2011
  83. science

    Suppose you wanted to produce 1.17 L of a 3.41 M aqueous solution of H2SO4. How many grams of solute are needed to make this solution? (H2SO4)

    asked by josselyne on March 5, 2013
  84. chem

    You wish to prepare an aqueous solution of glycerol, C3H5(OH)3, in which the mole fraction of the solute is 0.093. How many grams of glycerol must you combine with 425 grams of water to make this solution? What is the molality of the solution? PLEASE HELP!

    asked by mike on November 22, 2009
  85. college Chemistry

    An aqueous solution of hydrogen peroxide, H202 (MW=34.01amu), is labeled 10.0% by weight. What is the molal concentration of H202? All I really know is that molality = moles of solute per kilogram of solution

    asked by Donna on March 28, 2010
  86. Chemistry

    A 0.600 m aqueous solution of KBr has a total mass of 69.0 g. What masses of solute and solvent are present?

    asked by Troy on December 1, 2015
  87. chemistry

    A 0.850 m aqueous solution of KBr has a total mass of 66.0 g. What masses of solute and solvent are present?

    asked by beth on February 13, 2019
  88. Math

    Is my answer and working out correct for this question? A patient requires 0.08g of codeine for pain releif. If a tablet contains 20mg of codeine, then how many of the condeine tablets would be administered to the patient? My answer: 1000mg = 1g 0.08g x

    asked by Nursing Student on February 25, 2011
  89. Chemistry

    An 8 Molar (aqueous) solution contains H2O and HNO3. The solution has an S.G. of 1.24 at 25oC. HNO3 is a strong acid that completely dissociates in water. a) Calculate the mass of I Litre of solution. b) Calculate the mass concentration (g/L) of HNO3 in

    asked by Dodes on November 3, 2017
  90. chemistry

    The freezing point of a 0.010 m aqueous solution of a nonvolatile solute is ?0.072°C. What would you expect the normal boiling point of this same solution to be? have no clue, thanks for the thelp Freezing point depression= N*kf* molality you have

    asked by tyler on December 5, 2006
  91. Chemistry

    An aqueous salt solution is formed by adding 11.67 g sodium sulfate (solute) to water (solvent). What mass (in g) of water is used if the freezing point of the solution is -12.9 Farenheit. Kf H2O = 1.86 Celsius/m

    asked by jenny on February 24, 2012
  92. College Chemistry

    Calculate the pH of a solution prepared by mixing 250.mL of 0.174 molal aqueous HF (density=1.10g/mL) with 38.7g of an aqueous solution that is 1.50% NaOH by mass (density= 1.02g/mL).

    asked by Anonymous on March 23, 2011
  93. Chemistry

    The vapor pressure of 1 M of KI solution is ________ 1 M of glucose solution. This is because vapor pressure depends only on the _________. Which option correctly completes this statement? the same as; concentration of the solute less than; number of

    asked by Quinn on March 21, 2019
  94. Chemistry

    Calculate the pH of a solution prepared by mixing 250. mL of 0.174 m aqueous HF (density = 1.10 g/mL) with 25.7 g of an aqueous solution that is 1.50% by mass (density = 1.02 g/mL). I dont understand how to set it up

    asked by Jacob Bell on February 28, 2019
  95. college chemistry

    Calculate the pH of a solution prepared by mixing 150.mL of 0.174 molal aqueous HF (density=1.10g/mL) with 37.5 g of an aqueous solution that is 1.3% NaOH by mass (density=1.02 g/mL)

    asked by does anyone get this??? on March 24, 2011
  96. Chemistry

    What are the molality and mole fraction of solute in a 30.1 percent by mass aqueous solution of formic acid (HCOOH)

    asked by Daryll on February 19, 2017
  97. Chemistry

    What are the molality and mole fraction of solute in a 30.1 percent by mass aqueous solution of formic acid (HCOOH)

    asked by Daryll on February 19, 2017
  98. chemistry

    What are the molality and mole fraction of solute in a 25.5 percent by mass aqueous solution of formic acid (HCOOH)?

    asked by john on February 19, 2017
  99. chemistry

    calculate the concentration of each solutions: 3 moles of solute dissolved in 2 liter of solution 6 moles of solute dissolved on 9 liters of solution 4 moles of solute dissolved in 3 liters of solution

    asked by jess on March 29, 2010
  100. AP Chemistry

    The question asked... Calculate the solubility of calcium sulfate in grams solute per 100 grams solvent. Assume that the volume occupied by the solute in the solution in negligibly small. I solved and got 4.9 x 10 ^-3 mol/L... how do I put this in grams

    asked by Allie on April 21, 2010

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