A chemist prepares a solution of calcium sulfate by measuring out of calcium sulfate into a volumetric flask and filling the flask to the mark with water. Calculate the concentration in of the chemist's calcium sulfate solution. Round your answer to significant digits.

The question is incomplete, the complete question is:

A chemist prepares a solution of calcium sulfate (CaSO_4) by measuring out 0.0101 g of calcium sulfate into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's calcium sulfate solution. Round your answer to 3 significant digits.

2.12×10^-4 MolL-1

Explanation:

From m/M= CV

Where

m= mass of substance

M= molar mass of substance

C= concentration of substance

V= volume of solution

Molar mass of CaSO4= 40 + 32 +4 (16)= 136gmol-1

C= m/M ×1/V

C= 0.0101/136 × 1/350/1000

C= 2.12×10^-4 MolL-1

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