Calculate the grams of \(\text{CaCO}_3\) from \(\text{Na}_2\text{CO}_3\).

What we know:
- Molar ratio of \(\text{CaCO}_3\) to \(\text{Na}_2\text{CO}_3\) is 1:1.
- Volume of \(\text{Na}_2\text{CO}_3\) is 98.3 mL.
- Molar mass of \(\text{CaCO}_3\) is 100.0869 g/mol.
- Molarity of \(\text{Na}_2\text{CO}_3\) is 0.507 M.

Options:
A) 4.95 g
B) 9.95 g
C) 14.90 g
D) 19.90 g

To calculate the grams of CaCO₃ from Na₂CO₃, you need to convert the volume of Na₂CO₃ to moles using its molarity, and then use the mole ratio between CaCO₃ and Na₂CO₃ to calculate the moles of CaCO₃. Finally, you can convert the moles of CaCO₃ to grams using its molar mass.

Explanation:

To calculate the grams of CaCO₃ from Na₂CO₃, we need to use the given information. The ratio of CaCO₃ to Na₂CO₃ is 1:1, and we know the molar mass of CaCO₃ is 100.0869 g/mol. We are also given that Na₂CO₃ has a molarity of 0.507 and a volume of 98.3 mL.

To calculate the grams of CaCO₃, we need to convert the volume of Na₂CO₃ to moles using its molarity, and then use the mole ratio between CaCO₃ and Na₂CO₃ to calculate the moles of CaCO₃. Finally, we can convert the moles of CaCO₃ to grams using its molar mass.

Using these calculations, the grams of CaCO₃ from Na₂CO₃ would be approximately 14.90 g (option C).