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## How much is a mole of carbon-12?

Exactly **12 grams** of pure carbon-12 powder is known as one mole. The number of atoms of carbon-12 present in this one mole sample is 6.022 136 7 x 10^{23}. This number is known as Avogadro’s number.

## What is the mass of carbon-12 in grams?

**1.992×10−23 gm**.

## How many grams is 5 moles of carbon?

Carbon-12 refers to the isotope of carbon that has an atomic mass of 12.0000 g. Thus, the mass of one mole of carbon-12 is 12.0000 g. Therefore, the mass of 5 moles of C-12 is 5 × 12.0000 = **60.0000 g**.

## Why is a mole 12 grams of carbon-12?

as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 10^{23}). So the mole is the title used for the amount 6.022 x 10^{23} much the same way the word “dozen” is used for the amount 12. … This means that the atomic mass or atomic weight (12 grams) of carbon is **equal to exactly 1 mole of carbon**.

## What is the 12 in carbon?

The 12 in carbon-12 is **the mass number of the isotope**. This means that all atoms of carbon-12 have a mass of 12 atomic mass units.

## Why do we use carbon-12 as the basis for the mole?

Carbon-12 is the basis for the mole **because the atomic mass of 12 grams of Carbon-12 is exactly the Avogadro’s number which defines a mole**.

## Why is carbon 12 the standard?

Carbon-12 is of particular importance in its use as **the standard from which atomic masses of all nuclides are measured**, thus, its atomic mass is exactly 12 daltons by definition. Carbon-12 is composed of 6 protons, 6 neutrons, and 6 electrons.