Problem #1: What is the percent by mass concentration of a solution
that contains 5,30g salt dissolved in 18.7 of water?
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that contains 5,30g salt dissolved in 18.7 of water?
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Answer:
Mass of solute: 5.30g
Mass of solvent: 19.7
Required: % by mass
Equation: g solute/g solution x 100
Solution: % by mass = 5.30g/19.7g x 100%
Answer:% by mass =26.90%
Step-by-step explanation: