1. %w/w = (g solute)*100/mass solution.
Substitute and solve for g solute.
2. mols = M x L = ?
3. See #1 above and solve for mass solution. Then mass solution = mass solvent + mass solute = ? Substitute and solve for mass solvent.
4. mols = M x L = ?
Then mols = grams/molar mass. You know molar mass and mols, solve for grams.
Post your work if you get stuck.
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If an aqueous solution is 7.82 % by weight in sodium chloride and contains 1.07 g of sodium chloride, what mass of water is present in the solution?
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Thank you for helping
2 answers
Thank you it helped alot
3 answers