**Contents**show

## How many grams are in a mole?

Thus, for example, one mole of water (H_{2}O) contains 6.02214076×10^{23} molecules, whose total mass is about **18.015 grams** and the mean mass of one molecule of water is about 18.015 daltons, roughly a combined atomic mass number of 18.

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Mole (unit)

mole | |
---|---|

Symbol | mol |

Conversions | |

1 mol in … | … is equal to … |

SI base units | 1000 mmol |

## How many grams are in 88.1 moles of magnesium Brainly?

Answer:88.1 molx 24.3059 = **21409**.

## How many moles of magnesium are in 1.00 g?

The relative masses of each element can be found on the periodic table. For example, one atom of magnesium weighs 24.31 amu (atomic mass units). However, **one mole of magnesium weighs 24.31 g**.

## How do I calculate moles?

So in order to calculate the number of moles of any substance present in the sample, we simply **divide the given weight of the substance by its molar mass**. Where ‘n’ is the number of moles, ‘m’ is the given mass and ‘M’ is the molar mass.

## How do you calculate moles of magnesium?

**Example calculation:**

- Mass magnesium = 2.39 g.
- Mass magnesium oxide = 3.78 g.
- So mass oxygen = 1.39 g.
- Number moles Mg = 2.39/24 = 0.0995.
- Number moles O = 1.39/16 = 0.0868.
- Divide by the smallest to give the ratio aproximately 1 Mg : 1 O.
- This would suggest a formula of MgO, which is the correct formula.

## How many grams are in 4.5 moles of sodium fluoride NAF?

The mass of 4.5 moles of sodium fluoride is **189g**.

## How many atoms are in 1 mole of magnesium?

One mole is equal to **6.02214179×1023 atoms**, or other elementary units such as molecules.

## What is the mole of H2O?

The average mass of one H2O molecule is 18.02 amu. The number of atoms is an exact number, the number of mole is an exact number; they do not affect the number of significant figures. The average mass of one mole of H2O is **18.02 grams**. This is stated: the molar mass of water is 18.02 g/mol.