I think I am setting these up wrong. In the first one, I convertedthe mL to lite

Question

I think I am setting these up wrong. In the first one, I convertedthe mL to liters and then multiplied that by the M given. I thenmultiplied all of that by the mol ratio of the two Na.

In the second I figured you had to find out how much H2O was in thesolution and then find the M of that.?

1. How many moles of Na+ ions are present in 33.1 mL ofa 0.621 M Na2SO3 solution?

2.75.00 mL of 0.563-M NaCl solution and 60.00 mL of 0.117-M NaClsolution are combined and then diluted with water until the totalvolume is 250.00 mL.
What is the molarity of this NaCl solution?

Explanation / Answer

x.j5nbsp; 1) Volume of Na2SO3 solution V = 33.1 mL

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