calcium carbonate ($caco_3$) is an important component of coral reefs. how many moles are in 98.6 g of…

calcium carbonate ($caco_3$) is an important component of coral reefs. how many moles are in 98.6 g of $caco_3$? type in your answer using the correct number of significant figures.\n98.6 g $caco_3$ = mol $caco_3$\ndone

calcium carbonate ($caco_3$) is an important component of coral reefs. how many moles are in 98.6 g of $caco_3$? type in your answer using the correct number of significant figures.\n98.6 g $caco_3$ = mol $caco_3$\ndone

Answer

Explanation:

Step1: Calculate molar mass of $CaCO_3$

The molar mass of $Ca$ is approximately 40.08 g/mol, $C$ is 12.01 g/mol, and $O$ is 16.00 g/mol. For $CaCO_3$, molar mass $M=(40.08 + 12.01+3\times16.00)$ g/mol = 100.09 g/mol.

Step2: Use mole - mass formula

The formula to calculate the number of moles $n$ is $n=\frac{m}{M}$, where $m = 98.6$ g and $M = 100.09$ g/mol. So $n=\frac{98.6}{100.09}\approx0.985$ mol.

Answer:

0.985