**Contents**show

## What is the mass of 2 moles of hydrogen atoms?

Answer: 1 mole of hydrogen gas weighs 2 gram so 2 moles weigh **4 grams** mate hope this helps.

## How much is a mole of hydrogen?

An amount of any substance in grams that is numerically equal to its atomic or molecular weight in amu has been defined as one mole of that substance. By this definition, one mole of hydrogen is **2.016 grams**, one mole of methane is 16.043 grams, and one mole of water is 18.015 grams.

## What is mass of H2?

The molar mass of hydrogen gas is **2.016 grams per mole**.

## How do you find the mass of a mole?

If mass is given in kilograms (kg), **multiply** it by 1,000 to give a mass in grams (g). Substitute in the values and solve the equation to find moles of substances (mol).

…

Calculating the Moles of a Pure Substance (n=m/M)

we know the mass with units of | grams (g) |
---|---|

we know the molar mass with units of | grams per mole (g mol^{–}^{1}) |

## What is mass of 4 moles of hydrogen gas?

The mass of 4 moles of hydrogen gas is **8.064 g**.

## What is the mass of 5 moles of H2?

Hydrogen’s molar mass is 1.008 g/mol. Hydrogen gas’s formula is H2 meaning its composed of two hydrogens therefore its molar mass is 2.016 g/mol. 5 mol H2 x 2.016g/mol = **10.08 g**.

## Is hydrogen H2 or H?

Hydrogen has a molar mass of 1 and it’s molecular formula is H2. Hydrogen, **H**, is the lightest element with the atomic number 1. It is a colorless, odorless, tasteless, and highly flammable gas with the molecular formula H2.

## How many moles of hydrogen are in H2?

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