posted by josh .
1. 15.0 g of sodium sulfate are dissolved in water to form 400.0 g of solution. The density of the solution is 1.056 g/mL at 25oC.
a. What is the mass percent (%(w/w)) of sodium sulfate?
b. What is the molarity of sodium sulfate?
c. What is the molarity of the sodium ion?
d. How many parts per million of sodium ion in the solution?
e. How many equivalents of sodium ion are present in the solution?
This is a huge amount of work. How much can you do? What exactly do you not understand?