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Gram atomic mass of Oxygen is 16 g. Therefore, 80 g of Oxygen will contain = 80/ 16 = 5 moles.

## How many moles are in 80g of H2O?

Solution – Chemical formula of water is H2O. 1 mole of water weighs 18 gram. Therefore, 80 gram of water is equal to 4.4 moles.

## How many moles are in Oxygen?

One mole of oxygen gas, which has the formula O_{2}, has a mass of 32 g and contains 6.02 X 10^{23} molecules of oxygen but 12.04 X 10^{23} (2 X 6.02 X 10^{23}) atoms, because each molecule of oxygen contains two oxygen atoms.

## How many atoms are present in 80g of oxygen?

1 mol contains avogadro no. of atom i.e., 6.02×1023 atoms.

## How many moles of o2 are there in 96g of oxygen?

Therefore, according to the question, it is given that, weight of ${O_2}$ is 96 grams and is contained in the volume of vessel 2 liters. Hence, the number of moles is 3.

## How many moles are there in 500 g of oxygen?

The answer is 0.062502343837894. We assume you are converting between moles Oxygen and gram. You can view more details on each measurement unit: molecular weight of Oxygen or grams The molecular formula for Oxygen is O.

## How do you calculate moles of oxygen?

Calculate the number of oxygen atoms in 1 mole of O2. Solution — 1 molecule of O2 = 2 oxygen atoms So, 1 mole of O2 = 2 mole oxygen atoms = 2 × 6.022 × 1023 = 12.044 ×1023 oxygen atoms.

## How many moles is 50.0 g of oxygen?

There are 3 moles of O in 50 g.

## How many atoms are in 80 grams?

With an atomic mass of 16, there are 5 moles of oxygen atoms in 80g of oxygen. Each mole by definition contains Avagadro’s number (6 x 10^23) of atoms.

## What is the mass of oxygen contained in 72 g of pure water?

72 g of water is 72 g/18 g/mol = 4 mol. Thus, the amount of oxygen atoms is also 4 mols or 4 mol * 16 g/mol = 64 g.

## How many moles of magnesium phosphate contains?

Hint:Magnesium phosphate has 3 moles of magnesium, two moles of phosphorus and eight moles of oxygen atom in its chemical formula. Because there are three magnesium atoms, two phosphorus atoms and eight oxygen atoms in magnesium phosphate molecules.