**Contents**show

## What is the mass of 2 moles H2O?

One mole of H2O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = **2 g/mol**.

## How many moles does 2 Hydrogen have?

H2 – There are **2 moles** of hydrogen atoms (1 mole of elemental hydrogen).

## How many moles of water are there in 2 l of water?

There are **55.55 moles** per litre of water .

## What is 2H2O?

2 H2O represents **2 molecules of water**.

## How many moles are in CaCl2 2H2O?

Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how many moles of pure CaCl2 are present in the 1.50 g of CaCl2•2H2O.

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Initial: CaCl2 x 2H20 (g) | 1.50 g |
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Initial: CaCl2 (mol) | 0.0102 mol |

Initial: NaCO3 (mol) | 106 g/mol |

Initial: NaCO3 (g) | |

Theoretical: CaCO3 | 1.02 g |

## What is the weight of 2 mole of water?

One mole of H2 O is made up of 2 moles of Hydrogen atoms and 1 mole of Oxygen atom. Mass of two moles of Hydrogen atoms = 2x 1 g/mol = 2 g/mol. Mass of one mole of water = 2 g/mol + 16 g/mol = **18 g/mol**.

## Which is the molar mass of H2O quizlet?

The molar mass of H2O is **18.01 g/mol**. The molar mass of O2 is 32.00 g/mol.

## How many moles of hydrogen are contained in 2.00 moles H2O?

The second conversion factor reflects the number of atoms contained within each molecule. Two water molecules contain 4 hydrogen atoms and 2 oxygen atoms. A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.

## How many atoms are in 2 water molecules H2O?

If we want to make 2 water molecules, we will need **4 hydrogen atoms and 2 oxygen atoms**.