homework7

homework7 - solution from 8.7 L of a 15.8 M solution of...

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Homework Problems #7 Name _______________________ Chem 30A 1. (3 pts) Calculate the final molarity of a solution if 6.00 g of NaCl are added to 2.00 liters of a 5.0 M solution of NaCl. 2. (4 pts) A 8.0 g hunk of sodium phosphate is dissolved in water to give a resulting solution of 541 mL. The density of the solution is 1.18 g/mL. a) Calculate the molarity of the solution. b) Calculate the mass/mass percent of the solution. 3. (3 pts) How many grams of lithium sulfate do you need to make 755 mL of a 1.25 M solution?
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4. (4 pts) An experiment requires a student to prepare 100. mL of a 3.00 M nitric acid
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Unformatted text preview: solution from 8.7 L of a 15.8 M solution of concentrated nitric acid. How many milliliters of concentrated acid does the student use? How many milliliters of water is added to the acid? 5. (3 pts) What volume of water would you use to prepare 250. G of 14.0% (m/m) solution of ammonium chloride? The density of water is 1.0 g/mL. 6. (3 pts) Write the net ionic equation when a solution of copper(II) acetate is mixed with a solution of ammonium carbonate. (copper(II) carbonate forms an insoluble slat.)...
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This note was uploaded on 10/07/2009 for the course CHEM 30a taught by Professor Harrison during the Fall '08 term at Rice.

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homework7 - solution from 8.7 L of a 15.8 M solution of...

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