For each of the following solutions, calculate the:
A.) grams of 1.6 % (m/m) NaCl solution that contains 6.00 g of NaCl
Express your answer to two significant figures and include the appropriate units.
B.) milliliters of 45 % (m/v) NaF solution that contains 6.9 g of NaF
Express your answer to two significant figures and include the appropriate units.
C.) milliliters of 8.9 % (v/v) ethanol solution that contains 15.7 mL of ethanol
Express your answer to two significant figures and include the appropriate units.
A)
(m/m)% = mass of NaCl * 100 / mass of solution
1.6 = 6.00 * 100 / mass of solution
mass of solution = 375 g
Answer: 3.7*10^2 g
B)
(m/v)% = mass of NaF * 100 / volume of solution
45 = 6.9 * 100 / volume of solution
mass of solution = 15 mL
Answer: 15 mL
C)
(v/v)% = volume of ethanol * 100 / volume of solution
8.9 = 15.7 * 100 / volume of solution
mass of solution = 176 mL
Answer: 1.8*10^2 mL
For each of the following solutions, calculate the: A.) grams of 1.6 % (m/m) NaCl solution...
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