1. If 7.5 g. of NaNO3 is dissolved in 85 ml. of water, what is the % concentration of NaNO3 in the solution? 2. Calculate the number in gram of MgCl2 that would be needed to prepare 250 ml of a 12 % aqueous MgCl2 solution. (density of the solution is 1.1 g/ml) 3. Calculate the number of gram of NaOH that must be added to 1L of water to make a 15% NaOH solution
1. If 7.5 g. of NaNO3 is dissolved in 85 ml. of water, what is the % concentration of NaNO3 in the solution? 2. Calculate the number in gram of MgCl2 that would be needed to prepare 250 ml of a 12 % aqueous MgCl2 solution. (density of the solution is 1.1 g/ml) 3. Calculate the number of gram of NaOH that must be added to 1L of water to make a 15% NaOH solution
Chapter7: Solutions And Colloids
Section: Chapter Questions
Problem 7.106E
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1. If 7.5 g. of NaNO3 is dissolved in 85 ml. of water, what is the % concentration of NaNO3 in the solution?
2. Calculate the number in gram of MgCl2 that would be needed to prepare 250 ml of a 12 % aqueous MgCl2 solution. (density of the solution is 1.1 g/ml)
3. Calculate the number of gram of NaOH that must be added to 1L of water to make a 15% NaOH solution
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