**Contents**show

## How many atoms are in 8 grams of oxygen?

given weight = 8g. therefore, no. of moles= weight/ rmm = 8/16 = . 5moles…

## How many moles are there in 8g of he?

Helium is a monatomic, so, the number of atoms in the He element is one. **Two moles** = $,1.204 times {10^{24}}$atoms. So, two moles or we can say eight gram of He contains $1.204 times {10^{24}}$atoms.

## How many moles are in 16.00 grams of oxygen?

Similarly, 16 gm of elemental oxygen (represented as O) would contain **1 mole** of atoms, since the atomic mass of oxygen is 16 and hence will have 6.023 x 10^23 atoms.

## How many moles of oxygen is present in 640 grams?

therefore 64 gram oxygen = 64/16 = **4 mole oxygen**. 1 mole of any element contains 6.022 * 10^23 atoms in it.

## How many grams are in a mole?

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**.

## How many grams are in oxygen?

One mole of oxygen gas, which has the formula O2, has a mass of **32 g** and contains 6.02 X 1023 molecules of oxygen but 12.04 X 1023 (2 X 6.02 X 1023) atoms, because each molecule of oxygen contains two oxygen atoms.

## How many moles are in 32g of oxygen?

And we know that When the given mass is divided by the molar mass of the gas. We will get the number of moles present in that gas so here it is =**1**. we get the answer as 1. So the number of moles present in 32 gram of oxygen is 1.