Please help with these solution problems

Sep 2013
2
0
1.) If i make a solution by adding 83grams of sodium hydroxide to
750 mL of water..

a) what is the molality of NAOH in this solution?
b) what is the percent by mass of NAOH in this solution?
C) what is the mole fraction of NAOH

2) Explain how you would make 450 mL of a 0.25M Calcium chloride solution.
 

Unknown008

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