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## How many atoms are there in 3 moles of water?

one mole of water contains 6.02 x 10^{23} MOLECULES of water.

But each molecule of water contains 2 H and 1 O atom = 3 atoms, so there are approximately **1.8 x 10 ^{24} atoms** in a mole of water.

## How many atoms are in 3.0 moles h2o?

As hydrogen gas is diatomic, 3 moles of hydrogen gas contains 3 x 6.022 x 10^23 H2 molecules, each containing **2 hydrogen** atoms. Therefore, 3 moles of hydrogen gas contains 2 x 3 x 6.022 x 10^23 hydrogen atoms, or 3.6132 x 10^24.

## How many molecules are in 3 moles of water molecules?

So, in 3 moles of the substance, there’ll be 3⋅6=**18 moles** of water molecules. Remember that a mole of molecules contains 6.02⋅1023 molecules. So here, there’ll be a total of 6.02⋅1023⋅18≈1.08⋅1025 water molecules.

## How many atoms are in the human body?

Suzanne Bell, an analytical chemist at West Virginia University, estimates that a 150-pound human body contains about 6.5 octillion **(that’s 6,500,000,000,000,000,000,000,000,000) atoms**. The vast majority of them are hydrogen (humans are almost entirely water, which comprises two hydrogen atoms and an oxygen).

## How many atoms are in the universe?

There are **between 10 ^{78} to 10^{82}atoms** in the observable universe. That’s between ten quadrillion vigintillion and one-hundred thousand quadrillion vigintillion atoms.

## How many atoms are in 2 moles?

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 there in 1 mole of oxygen?

Solution — 1 molecule of O2 = 2 oxygen atoms So, 1 mole of O2 = 2 mole oxygen atoms = 2 × 6.022 × 1023 = **12.044 ×1023 oxygen atoms**.

## How many molecules is 3 moles?

1 Expert Answer

Do 3 moles x (6.022 x 10^23 molecules / 1 mol) to get about **1.8 x 10^24 molecules**.

## How many molecules are in a mole?

The mole is represented by Avogadro’s number, which is **6.022×10 ^{23} atoms** or molecules per mol.

## How many water molecules are in 5.2 moles water?

There are therefore **6.02 × 1023 water molecules** in a mole of water molecules.