The expected mass of calcium carbonate is 9.8 g.
Calculation:
We know that,
Molarity = No. of moles/ Volume(in L)
No. of moles = Given mass/ Molar mass
Therefore molarity will become,
Molarity = Given mass/ (Molar mass)(Volume)
Given,
Molarity = 1.0 M
Volume = 98 mL = 0.098 L
Molar mass of calcium carbonate (CaCO₃) = 100 g/mL
Put the values in the formula,
Molarity = Given mass/ (Molar mass)(Volume)
1 = Given mass/(100)(0.098)
Given mass = 9.8 g
Hence, the expected mass of calcium carbonate is 9.8 g.
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