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## How many molecules of O2 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 moles are present in 2 moles of O2?

per mole of oxygen. From here, the answer is simple. Just multiply 2 by 31.9988 g because there are two moles of oxygen. So, the answer is **63.9976 g** ..

## How many molecules are in 2g of O2?

We know that 2g of O2 has 0.0625 moles of O2. That means that the number of O2 molecules present in 2g of O2 is equal to 0.0625*NA. That’s **3.76375*10^22**.

## How many molecules are there in O2?

One mole of oxygen gas, which has the formula O_{2}, has a mass of 32 g and contains **6.02 X 10 ^{23} molecules** of oxygen but 12.04 X 10

^{23}(2 X 6.02 X 10

^{23}) atoms, because each molecule of oxygen contains two oxygen atoms.

## How many atoms of oxygen are in 2 moles of O2?

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**. Question 4.

## How many molecules are in 23.5 moles of oxygen?

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

## How many molecules are in 2.00 moles of h2o?

Since one mole is defined as 6.022 x 10^23, and there are two hydrogen per molecule, that would mean that there are exactly 12.044 x 10^23 molecules of hydrogen in one mole of water. Double that for 2 moles, and there are 24.088 x 10^23 hydrogen atoms in one mole of water.

## How many moles of O atom is present in 2 moles of CO2?

The number of oxygen atoms present can be obtained by multiplying the moles of oxygen by Avogadro’s Number. So, number of oxygen atoms present = 5 x ( 6.023 x 10^23 ) = **30.115 x 10^23 nos**.

## What is the moles of oxygen?

Moles of a Substance and the Molecular Weight

The mass of oxygen equal to one mole of oxygen is **15.998 grams** and the mass of one mole of hydrogen is 1.008 g. If we total up the gram amounts of each element in the water molecule = 15.998g/mol + 2(1.008g/mol) we get the molar mass of water = 18.014g/mol.