please show work? Question 39 (8 points) Calculate the volume in millilitres of a 0.875 M...
Calculate the volume in millilitres of a 0.875 M sodium sulfate solution containing 8.90 g of sodium sulfate? 71.6 mL
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Calculate the volume in millilitres of a 0.875 M sodium sulfate solution containing 8.90 g of sodium sulfate? Question 19 (8 points) How many g of water should be added to 8.27 g of acetic acid (HC2H302) to give a .175 m aqueous acetic acid solution? Question 20 (8 points) What is the vapor pressure at 35°C of a solution made by dissolving 44.6 g of sucrose, C12H22011, in 62.3 g of water? The vapor pressure of pure...
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Question 20 (8 points) A 2.15 g sample of molecular solid was dissolved in 25.0 g of CS2. The boiling point elevation of the solution was 1:59°C. Find the molar mass of the unknown. (Kb of CS2 is 1.07°C/m)
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17. Calculate the pH of a solution composed of 0.050 M formic acid (K.- 1.8 x 10") and 0.35 M sodium formate. (5 points)
Calculate the volume of 10%(m/v) sodium bicarbonate needed to react with 0.060 g of benzoic acid. Show your work b. Calculate the volume of concentrated hydrochloric acid needed to neutralize the bicarbonate and regenerate the neutral form of the carboxylic acid. Calculate the volume of 5% (m/v) sodium hydroxide needed to react with all of the phenol.
Calculate the volume of 10%(m/v) sodium bicarbonate needed to react with 0.060 g of benzoic acid. Show your work b.
Calculate the volume...
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Question 40 (8 points) What is the vapor pressure at 35°C of a solution made by dissolving 44.6.g of sucrose, C12H22011, in 62.3 g of water? The vapor pressure of pure water at 35°C is 42.2 torr.
Answer each of the following questions in your own words; show all work, and express numeric values to the appropriate level of significance. 1. Calculate the molarity of a solution comprised of 207.4 g silver nitrate in 1.26 x 101 mL cf solution. If 100.0 mL of this solution are diluted to a volume of 550.0 mL, what is the new concentration? 2. If 360.4 mL of a 0.0290 M solution of sodium sulfate are diluted to a total volume...
A "5% acidity" bottle of vinegar is approx. 0.875 M in acetic acid (Ka = 1.8x10^-5). a) Determine the approx. pH and percent ionization of acetic acid in this solution. b) Some health experts recommend adding 1 tablespoon (1 ounce) of vinegar to 1 cup of water (a total of 8 ounces). Calculate the approx. pH and percent ionization of acetic acid in this solution. c) How many mL of 0.10 M sodium acetate would be needed to make the...
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Calculate the pH of a 0.10 M solution of sodium acetate NaC_2H_3O_2.
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1. How many milliliters of 13.2 MH.SO, are needed to prepare 600.0 mL of 0.10 M H SOC? (4.5 mL) 2. 1.60 L of an aqueous solution containing 25.00 g of KCl dissolved in pure water is prepared. What is the molarity of the resulting solution? (0.210 M) 3. A solution containing 292 g of Mg(NO3)2 per liter has a density of 1.108 g/mL. What is the molality...