**Contents**show

## How many moles are in H2?

H2 – There are **2 moles** of hydrogen atoms (1 mole of elemental hydrogen). Total: 2 moles of atoms.

## How many moles are in 10g?

10/18 moles = 10/18 * 6 * 10^23 number of molecules = 3.33 * 10^23 molecules of water. Each molecule of water has 3 atoms, so the total number of atoms in 10g of water is 3*3.33*10^23 = **10^24**.

## How many atoms are in 10g of H2?

96= **6 atoms**.

## How many moles are in 5g of H2?

So, in 5g hydrogen, there are 5/2=**2.5 moles** of hydrogen. In 1 mole of hydrogen, there are 6.022×1023 hydrogen molecules. And in 1 mole of hydrogen, there are 2×6.022×1023 hydrogen atoms.

## How many moles are in 6g of H2?

Answer: Divide the given mass (6.2 g) by the molar mass of hydrogen gas, which is 2.0 g, and you get **3.1 moles**.

## How do you calculate g mol?

The molar mass is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance. The molar mass of atoms of an element is given by the standard relative atomic mass of the element multiplied by the molar mass constant, **1 × 10−3 kg/mol = 1 g/mol**.

## How many molecules are present in 10g of hydrogen?

Hence 10 g of H₂ would contain **30.11 × 10²³ Molecules**.

## How many atoms are in a 10.0 g sample of hydrogen?

The Mass of an Atom of hydrogen is 1.673 X 10-24g, How many atoms are in a 10.0-g sample of hydrogen. The answer is **5.98 Atoms 10-24atoms**.

## How many water molecules are in a 10.0 g sample of water?

10 g of H2O cotains =6.022×102318×10 = **3.34×1023 molecules**.