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## How many moles are present in 54g of he?

The molar mass that is the mass of 6.022 X 1023 atoms of helium is 4g. Hence **1 mole** of He = 4 g of He = 6.022 X 1023atoms of He. 1 g of He = (6.022 X 1023) / 4 atoms of He.

## What is the number of moles of aluminium?

There are three steps to converting grams of a substance to moles: ▪ Step 1: Determine how many grams of a substance are in the problem. Use the periodic table to check the atomic mass, this is the number of grams per mole → 1 mole of Aluminum is **26.982 g** ▪ Written as a fraction this is …

## How many moles are in 54g of h2o?

The mass of water is 54 g. The number of moles of water =18g/mol54g=**3mol**.

## How do u calculate number of 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 many grams are in 88.1 moles?

How many grams are in 88.1 moles of magnesium? 88.1 molx 24.3059 = **21409**.

## How many grams are there in 5 moles of aluminum AL?

then, 5 moles of Aluminum (Al) = 5×27 = **135 grams**…

## How many atoms are in 2 moles of h2o?

Answer: of atoms (molecules )÷ avogadro no. 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.