Question

Find out the mass by volume, mass by mass percentage of 25% solution of sulphuric acid. (density
of sulphuric acid is 1.05 g/L).
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Answer 1

Answer:

Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%.

Also Known As: mass percent, (w/w)% mass percent = (mass of element in 1 mole of compound / mass of 1 mole of compound) x 100.

mass percent = (grams of solute / grams of

solute plus solvent) x 100.

Percent Composition

Find the molar mass of all the elements in the compound in grams per mole.

Find the molecular mass of the entire compound.

Divide the component's molar mass by the entire molecular mass.

You will now have a number between 0 and 1. Multiply it by 100% to get percent composition.