Question

When 157.0 grams of caso4 are dissolved in enough water to yield a volume of 725 milliliters of solution. the molarity of this solution will be molecular weight of caso4 is 136 1.21 m 1.96 m 1.59 m 0.5 m

Answer 1

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157.0 grams of caso4 are dissolved in enough water to yield a volume of 725 milliliters of solution. the molarity of this solution will be molecular weight of caso4 is 136 1.21 m 1.96 m 1.59 m 0.5 m. not really sure what time do u

Answer 2

The molarity of this solution is 1.59 M.

Explanation:

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}$

Given mass of calcium sulfate = 157.0 g

Molar mass of calcium sulfate = 136 g/mol

Molarity of solution = M

Volume of the solution = 725 mL = 0.725 L

Putting values in above equation, we get:

$M=\frac{157.0 g}{136 g/mol\times 0.725 mL}$

M = 159 mol/L

The molarity of this solution is 1.59 M.

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