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## What is the weight of 2.5 moles of oxygen?

=2.5×16= **40g**. `

## How many molecules are in 2.5 moles of O2?

There are 6.022×**1023** O atoms in a mole of O atoms. There are 6.022×1023 O2 molecules in a mole of O2.

## How many molecules are in 2.5 moles?

There are **1.51 x 1024 molecules** of carbon dioxide in 2.50 moles of carbon dioxide.

## How many oxygen atoms are there in 2.0 moles of O2?

There are **6×6.022×1023 atoms** in 2.00⋅mol NO2(g) .

## How many water molecules are in 2.5 moles?

Stefan V. **1.5×1024 molecules**.

## How many moles is CH4?

(molar mass CH4 = 16.0 g/mol] G: **1.58 moles** CH4 D: ?

## 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**.

## How many moles are in 4 grams of oxygen?

Since oxygen has an atomic mass of 16 g/mole, the molar mass of oxygen gas (O2) is 2 x 16 g/mole = 32 g/mole. Since 1 mole of oxygen is equivalent to 32 g, 4 moles of oxygen gas would be equivalent to 4 moles x 32 g/mole = **128 g**. Thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.