Asked by SR23789
What mass of MgCl2 should be dissolved in 75.0 g H2O to produce a solution that is 38.5% solute by mass?
Answers
Answered by
DrBob222
% m/m (or w/w) = grams solute/100 g solution or
% MgCl2 = [(grams MgCl2/(75 + g MgCl2)]*100 = 38.5. Solve for g MgCl2. Post your work if you get stuck.
% MgCl2 = [(grams MgCl2/(75 + g MgCl2)]*100 = 38.5. Solve for g MgCl2. Post your work if you get stuck.
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