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## How many moles of hydrogen are there in 3.00 g of ethanol CH3CH2OH )? How many atoms of hydrogen?

002 10.0 points How many moles of hydrogen are contained in 3.00 moles of ethanol (CH3CH2OH)? Note, the 6.022×1023 factors cancel, leaving us with 6 mol H/1 mol CH3CH2OH. Thus in 3.00 moles of ethanol, there would be 3.00 times as many H atoms, or **18.00 mol H**.

## What is the mole formula?

Avogadro’s number is a very important relationship to remember: **1 mole = 6.022×1023 6.022 × 10 23 atoms**, molecules, protons, etc. To convert from moles to atoms, multiply the molar amount by Avogadro’s number. To convert from atoms to moles, divide the atom amount by Avogadro’s number (or multiply by its reciprocal).

## What is the formula for moles to grams?

In order to convert the moles of a substance to grams, you will need to **multiply the mole value of the substance by its molar mass**.

## How many moles of ethanol are present in the sample?

**2.173 moles** of ethanol are present in a 100.0 g sample of ethanol.

## What is the mole of oxygen?

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.

## How many atoms are in a mole of oxygen?

One mole of atoms of oxygen has a mass of 16 g, as 16 is the atomic weight of oxygen, and contains **6.02 X 10 ^{23} atoms** of oxygen.

## How many molecules is 0.5 moles?

1 mole of molecules is equivalent to 6.02 x 10. Therefore, 0.5 moles of molecules would be half of 6.02 x 10^{23}, which is **3.01 x 10 ^{23}**. 1 mole of molecules is equivalent to 6.02 x 10

^{23}molecules. Therefore, 0.5 moles of molecules would be half of 6.02 x 10

^{23}, which is 3.01 x 10

^{23}.

## How do you convert grams to moles calculator?

To correctly estimate the number of moles, n , of a substance of a specific mass, m , (in grams), you need to follow the grams to moles formula: **n = m / M** , where, M is the molar mass of this material.