Homework Help: Chemistry

Posted by Lauren on Monday, February 4, 2008 at 7:07pm.

How would you prepare 455 g of aqueous solution that is 6.50% sodium sulfate Na2SO4 by mass?

Chemistry - DrBob222, Monday, February 4, 2008 at 8:26pm
percent by mass = grams/100 g solution.

X grams/455 = 0.065
solve for X. Subtract 455-X to calculate how much water must be added.
- Chemistry - DrBob222, Monday, February 4, 2008 at 8:26pm
  check my thinking. Check my work.

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