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Solutions Class #2

Solutions Class #2. Practice more solutions math problems about MOLARITY. Calculate the molarity of an aqueous solution containing 259 grams KCl in a solution with total volume of 750. mL.

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Solutions Class #2

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  1. Solutions Class #2 Practice more solutions math problems about MOLARITY

  2. Calculate the molarity of an aqueous solution containing 259 grams KCl in a solution with total volume of 750. mL

  3. Calculate the molarity of an aqueous solution containing 259 grams KCl in a solution with total volume of 750. mL M = # moles KClLiters of solution = 3.50 Moles KCl0.750 Liters solution This solution has a Molarity of 4.67, or It’s a 4.67 M KCl(AQ)

  4. How many grams of sodium chloride are in a one liter aqueous solution that is saturated at 90°C?

  5. How many grams of sodium chloride are in a one liter aqueous solution that is saturated at 90°C? NaClwater 40 g100 mL x g1000 mL 90°C 100 x = 40,000 x = 400 grams NaCl

  6. How many moles is 400. g NaCl ?

  7. How many moles is 800. g NaNO3 ? 400. g NaCl1 1 mole NaCl58 g NaCl x = 6.90 moles NaNO3

  8. 6.90 moles NaCl in 1.0 liters solution is what concentration? M = # moles NaNO3 Liters of solution = 6.90 moles1.0 Liters This is a 6.90 M NaCl solution, or You have a 6.91 M NaCl(AQ)

  9. How many grams of NaCl are required to form a 2.50 L of 0.900 M NaCl(AQ)?

  10. How many grams of NaCl are required to form a 2.50 L of 0.900 M NaCl(AQ)? M = # moles NaClLiters of solution 0.900M = 1 # moles NaCl2.50 Liters Solve for # moles, hint: put Molarity over 1, then cross multiply # moles = 2.25 moles NaCl is 58 g/mole, so, 2.25 x 58 = 130.5 g = 131 g NaCl (3 SF)

  11. Calculate the number of grams of KOH required to make a 3.20 Liter solution of KOH(AQ) with a 1.20 M concentration.

  12. Calculate the number of grams of KOH required to make a 3.20 Liter solution of KOH(AQ) with a 1.20 M concentration. M = # moles KOHLiters of solution 1.20 M = 1 # moles KOH3.20 Liters # moles KOH = 3.84 moles KOH 3.84 moles KOH1 x 56 g KOH1 mole KOH = 215 g KOH

  13. Get a copy of the Diary. For Homework, please do SOLUTIONS HW #2 DO NOT DO HW #1

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