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

0.986 moles of CaO are formed when  98.60 g of $CaCO_3$decomposes.

What are moles?

A mole is defined as 6.02214076 ×$10^{23}$ of some chemical unit, be it atoms, molecules, ions, or others.

Number of moles of CaCO3 =$\frac{mass}{molar \;mass}$

Number of moles of CaCO3 = $\frac{98.60 g}{100 g/mol}$

= 0.986 moles

Reaction:

$CaCO_3$   →  $CaO + CO_2$

Since the reaction is 1:1:1.

So 0.986 moles of CaO are formed.

Learn more about moles here:

brainly.com/question/26416088

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