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Three grams (3 g) of solution in 100 mL of solvent equals ____ % (w/v)

User Rune Lyngsoe
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1 Answer

28 votes
28 votes

Answer

3%(w/v)

Step-by-step explanation

Given:

mass of solute = 3 g

volume of the solvent = 100 mL

Solution:

We want to solve for concentration in w/v%


\begin{gathered} Concentration\text{ = }\frac{mas\text{s of solute }}{volum\text{e of solvent}} \\ \\ Concentration\text{ = }\frac{3\text{ g}}{100\text{ mL}}\text{ } \\ \\ Concentration\text{ = 0.03 g.mL} \end{gathered}

To get the %w/v. You need to multiply by 100

0.03 x 100 = 3%(w/v)

User Guerlando OCs
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