Calculate percent by mass of HC2H3O2 in 100 g of a solution that contains 1 mole of HC2H3O2.
((Percent by mass is defined as the mass of a solute divided by the mass of the solution, multiplied by one hundred percent.))
Quick Chemistry Help Needed. Thanks!!?
2016-03-01 11:52 am
回答 (2)
2016-03-01 1:08 pm
Molar mass of HC₂H₃O₂ = 1×4 + 12×2 + 16×2 = 60 g/mol
Mass of HC₂H₃O₂ = 60 × 1 = 60 g
Percent by mass of HC₂H₃O₂ = (60/100) × 100% = 60%
Mass of HC₂H₃O₂ = 60 × 1 = 60 g
Percent by mass of HC₂H₃O₂ = (60/100) × 100% = 60%
2016-03-01 11:56 am
Ok, so that's your homework - what part of it aren't you understanding?
收錄日期: 2021-04-18 14:32:42
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