Respuesta :
Answer : The mass in grams of calcium sulfate is 0.16 grams.
Explanation :
Molarity : It is defined as the number of moles of solute present in one litre of solution.
Formula used :
[tex]Molarity=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution}}[/tex]
Solute is, [tex]CaSO_4[/tex]
Given:
Molarity of [tex]CaSO_4[/tex] = 0.0025 mol/L
Molar mass of [tex]CaSO_4[/tex] = 136 g/mole
Volume of solution = 485 mL
Now put all the given values in the above formula, we get:
[tex]0.0025=\frac{\text{Mass of }CaSO_4\times 1000}{136\times 485}[/tex]
[tex]\text{Mass of }CaSO_4=0.16g[/tex]
Thus, the mass in grams of calcium sulfate is 0.16 grams.
