# How many grams are in 4 moles of Li2O?

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## How many grams are in a mole of Li2O?

13.8 g/mol + 16.0 g/mol therefore the molar mass of Lithium oxide is 29.8 g/mol.

## How many grams are in 4.900 moles of Li2O?

Multiplying this molecular mass by the given number of moles will give the weight in grams of the substance. Therefore \$4.500\$ moles \$L{i_2}O = 29.881g/mol times 4.500moles = 134.46grams\$.

## How much is 4 moles O2?

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.

## How many grams are in 4.50 moles of lithium oxide li2o?

So to get the mass of 4.500 mol , we simply mulitply the molar mass by the number of moles: 29.88 g⋅mol−1 × 4.500 mol ≈ 130⋅g .

## How many molecules are in 23 moles?

The number of molecules of oxygen in 23 moles of oxygen is 1.385 x 1025 molecules of oxygen.

## How many moles is 25 grams of water?

Hence, 1.38 moles (mol) are present in 25 grams of water.

## How many oxygen molecules are in 32 moles?

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 helium atoms are in a mole?

A mole of helium gas contains 6.02 x 1023 helium atoms.