# What is the mass of three moles of hydrogen gas?

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## What is the mass of 3 moles of hydrogen gas?

1mol of nitrogen has a mass of 28.02g, while 3mol of hydrogen has a mass of 6.06g, and 2mol of ammonia has a mass of 34.08g.

## What is the volume of 3 moles of hydrogen gas at STP?

Explanation: Well, assuming that the hydrogen gas is contained at STP , then the molar volume would be 22.7⋅3=68.1 L .

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

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

## What is the mass of 1 mole of hydrogen gas?

One 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.

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

One mole of hydrogen weighs 2 g. Therefore 4 moles of hydrogen weighs 8 g.

## What is the mass of 3 moles of water?

similarly 1 mole of water is equivalent to molecular mass of water x 3 that is 18×3=54 gram.

## What is the volume of 3 moles of gas?

1 Answer. Well the molar volume at STP=22.4 L….

## What is the formula of volume?

Whereas the basic formula for the area of a rectangular shape is length × width, the basic formula for volume is length × width × height.

## What is the volume of hydrogen gas?

Molar volume, or volume of one mole of gas , depends on pressure and temperature, and is 22.4 liters – at 0 °C (273.15 K) and 1 atm (101325 Pa), or STP (Standard Temperature and Pressure), for every gas which behaves similarly to an ideal gas.

## What is the mass of 1 mole of oxygen?

The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g. If we total up the gram amounts of each element in the water molecule = 15.998g/mol + 2(1.008g/mol) we get the molar mass of water = 18.014g/mol.

## What is mass of 5 moles of hydrogen gas?

Answer: 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.

## 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.

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## Is Avogadro’s Number?

Avogadro’s number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022×1023 mol-1 and is expressed as the symbol NA. Avogadro’s number is a similar concept to that of a dozen or a gross.

## How many grams are in 1 mole of h2o?

The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is 18.02 grams. This is stated: the molar mass of water is 18.02 g/mol. 