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## How many atoms are there in 3 moles?

No. of atoms = 3 × 6.022 × 10^23 = **18.066 × 10^23 atoms**.

## What is the mass of 3 moles of sodium?

Explanation: Sodium metal has a molar mass of **22.99⋅g** .

## How many atoms are in 2 moles of sodium?

If we have 2 mol of Na atoms, we have 2 × (6.022 × 10 ^{23}) Na atoms, or **1.2044 × 10 ^{24} Na atoms**.

## How many atoms are in 3 moles of oxygen?

Explanation: 1 mole of O₂ contains 6.022 × 10²³ atoms. Thus, 3 moles O₂ would contain 3 × 6.022 × 10²³ atoms. Therefore, 3 moles of O₂ contain **18.066 × 10²³ atoms**.

## How many atoms will be there in 3 mole of O2?

1 mole of a substance there are 6.022*10^23 atoms/molecules. From this we can deduce that there are **3*6.022*10^23 O2 molecules** in 3 moles.

## How many atoms are there in sodium?

One mole of a substance is defined by Avogadro as consisting of 6.022 x 1023 atoms. This is Avogadro’s number. To calculate the number of atoms in two moles of sodium, use dimensional analysis. 2.0 moles Na x 6.022⋅1023g1mol=**1.20⋅1024 atoms** of Na.

## What is the mass of 3 moles of sodium chloride?

The molar mass of sodium chloride is 58.44 g/mole. To find the molar mass of 3 moles, multiply 58.44 by 3. The mass of 3 moles of sodium chloride is thus 175.32 g.

## How much is 3 moles NaOH?

It’s a 3.0 M solution so **1 litre of solution** contains 3 moles of NaOH. 250 ml of solution therefore contains 0.25 x 3 = 0.75 moles of NaOH. The molar mass of NaOH is 39.9971 g/mol, so 250 ml of this solution contains 0.75 x 39.9971 = 29.99 g, or if you round it up 30.0 g.

## How many moles of chlorine atoms are there in 1 mole of chlorine gas?

The molar mass of chlorine is $35.45$ g/mol. So, the moles of the chlorine is $0.20$ mol. According to the Avogadro, one mole of any substance contains$,**6.02** times {10^{23}}$ atoms, molecules or ions of that substance. This number $,6.02 times {10^{23}}$ is known as Avogadro number.