Question

what is the mass/volume (m/v) percent of a solution containing 45 g of lithium hydroxide, lioh, dissolved in enough water to make a 250 ml solution?

Answer 1

5%(m/v) is the percent of a solution containing 45 g of lithium hydroxide, LiOH, dissolved in enough water to make a 250 ml solution

%(m/v)=Mass of solute (grams)/Volume of solution (mL)×100

For the given solution,

Mass of solute = 1.25 g

Volume of solution = 25.00 mL%(m/v)=1.25 g25.00 mL×100=5% (m/v)

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