# Quick Answer: How Many Moles Of Hydrogen Will You Need?

## How do you calculate moles of hydrogen gas?

Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole.

For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles..

## How many grams are in 1 mole of hydrogen?

2 gramsOne MOLE of hydrogen atoms contains the same number of atoms as the number of hydrogen molecules in one MOLE of hydrogen molecules, i.e., Avagadros number. However, one mole of hydrogen atoms has a mass of 1 gram while one MOLE of hydrogen molecules has a mass of 2 grams.

## How many moles of hydrogen will be needed to react with 2 moles of nitrogen according to the following?

Thus, if 2 moles of dinitrogen gas are specified, 6 moles of dihydrogen gas are required.

## Is an atom a mole?

Chemists generally use the mole as the unit for the number of atoms or molecules of a material. One mole (abbreviated mol) is equal to 6.022×1023 molecular entities (Avogadro’s number), and each element has a different molar mass depending on the weight of 6.022×1023 of its atoms (1 mole).

## How many grams are in 1 mole of oxygen?

0.062502343837894 moleThe SI base unit for amount of substance is the mole. 1 grams Oxygen is equal to 0.062502343837894 mole.

## How many moles are in a hydrogen atom?

Correct answer: Avogadro’s number, 6.022 * 1023 is the number of things in one mole. The question indicates that there is 1 mole of H2. Thus there are 6.022 * 1023 molecules of H2. However the question is asking for the amount of atoms in 1 mole of H2.