What mass of strontium nitrate (Sr(NO3)2) would be required to prepare 2.000 L of a 0.0150 M aqueous solution of this salt?

Respuesta :

Answer : The mass of strontium nitrate required would be, 6.35 grams.

Explanation : Given,

Volume of solution = 2.000 L

Molar mass of [tex]Sr(NO_3)_2[/tex] = 211.63 g/mole

Molarity = 0.0150 M

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

[tex]\text{Molarity}=\frac{\text{Mass of }Sr(NO_3)_2}{\text{Molar mass of }Sr(NO_3)_2\times \text{Volume of solution (in L)}}[/tex]

Now put all the given values in this formula, we get:

[tex]0.0150M=\frac{\text{Mass of }Sr(NO_3)_2}{211.63g/mole\times 2.000L}[/tex]

[tex]\text{Mass of }Sr(NO_3)_2=6.35g[/tex]

Therefore, the mass of strontium nitrate required would be, 6.35 grams.

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