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The molar mass of oxygen is 16 grams. 1-mole oxygen weighs 16 grams. 64 gram oxygen = 64/16 = 4 mole oxygen.

## How many molecules are in 64 grams of oxygen?

so,your answer is 12.04×10^23 molecules.

## How many moles are present in 64g of he?

64 gram HE(Helium)= x 64 moles, 64 gram HE(Helium)= 16 moles. The number of moles 64 g of HE is 16 moles.

## How many moles are in oxygen?

Moles of a Substance and the Molecular Weight

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.

## How do I calculate moles?

How to find moles?

- Measure the weight of your substance.
- Use a periodic table to find its atomic or molecular mass.
- Divide the weight by the atomic or molecular mass.
- Check your results with Omni Calculator.

## How many atoms are present in 64 amu of oxygen?

Answer: There are 4 atoms present in 64 amu of oxygen. Explanation: We know that, one oxygen atom has atomic mass 16 u.

## How many moles are in a gram of oxygen?

For one gram atomic weight of oxygen with atomic weight of 16 grams, one mole of oxygen also contains 6.022 × 10^{23} oxygen atoms. Similarly, for one gram atomic weight of silicon with atomic weight of 28 grams, one mole of silicon still contains 6.022 × 10^{23} silicon atoms.

## How many moles is 50.0 g of oxygen?

There are 3 moles of O in 50 g.

## How many moles are in 50 grams of O2?

To calculate the weight of an element in grams to moles, we should know the molar mass of an element. For example, 50 grams of oxygen is equal to 3 moles.

## How many grams are in moles?

The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.

## What is a 1 mole?

A mole is defined as 6.02214076 × 10^{23} of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

## How many grams are there in 3.5 moles of oxygen?

Originally Answered: Who many grams are in 3.5 moles of O2? The atomic mass of oxygen is approximately 16 grams, however o2 would make it 32 grams. Then one would multiply 32 by 3.5 moles which would give you 112 grams per 3.5 moles.

## How do you convert grams to moles calculator?

To correctly estimate the number of moles, n , of a substance of a specific mass, m , (in grams), you need to follow the grams to moles formula: n = m / M , where, M is the molar mass of this material.