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## How many moles are in 50g of CaCO3?

100g Caco3=1mole.. , 50g of caco3=1÷100×50=**0.5 mol**..

## How many moles of CaCO3 are there in 25g of CaCO3?

weight of calcium carbonate given= 25 g. = **0.25 moles**. thus number of moles in 25 g of calcium carbonate is 0.25.

## What is the molecular mass of CaCO3 Class 9?

Solution — Molecular mass of CaCO3= 40+12+3×16 = **100** No. mole of CaCO3 = 50g/100g = 0.5 0.5 mole of CaCO3 contains 1.5 moles of oxygen atoms No. of oxygen atoms = 1.5 × 6.022×1023 = 9.033×1023 atoms Mass of Oxygen atoms = 1.5 × 16 = 24 g. Question 9.

## How is CaCO3 calculated in CA?

Molar mass (CaCO3) = M(Ca) + M(C) + 3 x M(O) = 40 + 12 + 3 x 16 = 100 g/mole. **Divide the molar mass by the ion charge or oxidation number** (for CaCO3) to determine equivalent (Eq.) weights.

## How many moles are there in 100g of CaCO3?

⭕️ They are 40.1, 12 and 16 g/mol respectively. =**100.1 g/mol**.

## How many moles are in 10g of CaCO3?

Therefore, number of moles in 10g of calcium carbonate is **0.1**.