Question

2.5kg of sugar is dissolved in 47.5g of water . calculate its concentration as percentage by mass.
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Answer 1

Answer:

Amount of sugar=2.5g

Amount of water=47.5g

Total amount=2.5+47.5=50g

Percent of mass if sugar=2.5÷50×100=5%

So the percent of mass of water 100-5=95%

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