Question

How many milliliters of a 9.0 h 2so 4 solution are needed to make 0.45 l of a 3.5 m solution?

Answer 1

To have 175ml is needed of a 9.0M $H_{2} SO_{4}$ solution are needed to make 0.45 L of a 3.5 M (Morality).

How to calculate the molarity to make the solution?

The Morality unit (M) is $\frac{\text { moles of solute }}{\text { liters of solution }}=\mathrm{mol} / \mathrm{L}$

The volume of a solution grows when it is diluted, while the solute concentration stays constant.

The following is the formula for dilution of a solution:

$\mathrm{M}_1 \mathrm{~V}_1=\mathrm{M}_2 \mathrm{~V}_2$

here $\mathrm{M}_1 , \mathrm{M}_2$ represents morality and $\mathrm{~V}_1 , \mathrm{~V}_2$ represents volume of solution in litres (L).

We are given the values: $&\mathrm{M}_1=9.0 \mathrm{M}=9.0 \mathrm{~mol} / \mathrm{L} \\&\mathrm{M}_2=3.5 \mathrm{M}=3.5 \mathrm{~mol} / \mathrm{L} \\&\mathrm{V}_2=0.45 \mathrm{~L}$

Now to calculate the volume of the solution i.e. $\mathrm{V}_1=\frac{\mathrm{M}_2 \mathrm{~V}_2}{\mathrm{M}_1}$

$\mathrm{V}_1=\frac{3.5 \mathrm{M} \times 0.45 \mathrm{~L}}{9.0 \mathrm{M}}=0.175 \mathrm{~L}$

In milliliters $\mathrm{V}_1=0.175\mathrm{~L} \times \frac{1000 \mathrm{mL}}{1 \mathrm{L}}=175 \mathrm{~mL}$

To know more about morality of a solution, click here:

brainly.com/question/9558971

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