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

100 g

Solution — Molar mass (Molecular mass in gram) of CaCO3 = 40+12+3×16 = 100 g No.

**What is the molar mass of CaCO3 6H2O?**

208.18

Calcium carbonate hexahydrate

PubChem CID | 22133717 |
---|---|

Molecular Formula | CH12CaO9 |

Synonyms | calcium carbonate hexahydrate 15634-14-7 calcium;carbonate;hexahydrate CARBONIC ACID CALCIUM SALT (1:1), HEXAHYDRATE CO3.Ca.6H2O More… |

Molecular Weight | 208.18 |

Component Compounds | CID 767 (Carbonic acid) CID 962 (Water) CID 5460341 (Calcium) |

### How many moles are in 5gm CaCO3?

Solution : We know that: 1 mole of atoms = Gram atomic mass So, 1 mole of calcium atoms = Grams atomic mass of calcium `= 40 g` Now, 40g of calcium = 12 mole of calcium So, 5g of calcium `= 1/ 40 xx 5` mole `= 1/8` mole `= 0.125` mole Thus, there are `0.125` mole in `5` grams of …

**What is the molecular formula of CaCO3?**

CaCO3Calcium carbonate / Formula

## How do you calculate CaCO3?

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.)

**How many moles are in 20g of CaCO3?**

Of moles=0. 5 answer.

### What is total hardness as CaCO3?

Very Hard: Above 300 mg/L as CaCO3. Water should have a total hardness of less than 75 to 85 mg/l as CaCO3 and a magnesium hardness of less than 40 mg/l as CaCO3 to minimize scaling at elevated temperatures.

**What is meant by CaCO3 equivalent?**

“Calcium carbonate equivalent” is the quantity of carbonate (CO3) in the soil expressed as CaCO3 and as a weight percentage of the less than 2 mm size fraction. The availability of plant nutrients is influenced by the amount of carbonates in the soil.

## How many moles of CaCO3 are in 200g?

=> The molar mass of Calcium Carbonate is 100 g/mole, We have 200 g, therefore, we have 2 moles, the number of molecule per mole is 6.02 x 1023, Therefore we have 1.204 x 1024 molecules.

**What is the ratio of CaCO3?**

⇒10:3:12.

### How do you convert to CaCO3?

To convert chloride to CaCO3 equivalents, multiply the concentration of chloride ions in mg/L by 1.41, and for sulfate, multiply by 1.04.

**How do you calculate CaCO3 equivalent?**

## How do you calculate total hardness of CaCO3?

The amount of hardness is expressed in milligrams per litre (mg/L) or grains per gallon (gpg) as calcium carbonate. Hardness is calculated from the equation Hardness = 2.497 (Ca) + 4.118 (Mg).