Question

Calcium carbonate (CaCO3) is an important component of coral reefs. How many moles are in 98.6 g of CaCO3? Type in your answer using the correct number of significant figures.

98.6 g CaCO3 =
mol CaCO3

Answer 1

To find the number of moles in 98.6 g of CaCO3, divide the mass by the molar mass of CaCO3. The answer is 0.985 moles.

Step-by-step explanation:

To find the number of moles in 98.6 g of CaCO3, we need to use the molar mass of CaCO3, which is 100.1 g/mol. We can calculate the number of moles using the formula:

moles = mass (in grams) / molar mass

So, moles = 98.6 g / 100.1 g/mol = 0.985 moles