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⇒ Number of moles which make up 20 grams of NaOH = (20 grams × 1 Mole)/(40 grams) = 0.5 moles.

## How many moles are in 20g of NaOH?

20 gr of NaOH correspond to 0.5 moles which are contained in 0.5 liter of solution.

## How many atoms are there in 20g of sodium hydroxide?

1 mole of Na=6.022*10^23 atoms. therefore in 20g of sodium 5.22*10^23 atoms are present.

## How many moles are in sodium hydroxide?

The molar mass tells you the mass of exactly one mole of a given substance. In this case, sodium hydroxide has a molar mass of 39.997 g mol−1 , which implies that one mole of sodium hydroxide has a mass of 39.997 g .

## How many moles are in 1g of NaOH?

Determining the Molar Mass of a Compound

In a compound of NaOH, the molar mass of Na alone is 23 g/mol, the molar mass of O is 16 g/mol, and H is 1 g/mol. What is the molar mass of NaOH? The molar mass of the compound NaOH is 40 g/mol.

## How do I calculate moles?

How to find moles?

- Measure the weight of your substance.
- Use a periodic table to find its atomic or molecular mass.
- Divide the weight by the atomic or molecular mass.
- Check your results with Omni Calculator.

## How many moles of NaOH are in 80.0 g of sodium hydroxide NaOH?

80 gm of NaOH is two moles so you have two moles of sodium thus two times Avogadro’s constant of sodium atoms. 80 gm of NaOH is two moles so you have two moles of sodium thus two times Avogadro’s constant of sodium atoms. Sodium hydroxide is an ionic compound.

## What is the mass of 1 mole of NaOH?

Using periodic table you can find molar mass of HCl, which is 36.458 g/mol. This means 1 mol of HCl is 36.458 grams. So 20 g of HCl is 0.548 mol.

## How many sodium atoms are in Naci?

There are 2 atoms in NaCl. This is because there is 1 atom of Na (sodium) and 1 atom of Cl (chlorine) in each NaCl molecule. Elements by themselves do not have a “number of atoms”- if you’re talking about the atomic number, it’s the number of protons (or electrons in a neutral atom) of an element.

## What is the number of moles in 10g of NaOH?

Answer: The answer is 39.99711.

## How many moles are in 4.75 g of sodium hydroxide?

4.75 g of NaOH (1.19 x 101 mol NaOH) Answer: The molar mass of NaOH was solve in section A to be 40 g/mol.

## How many moles of sodium hydroxide are present in 160g?

Answer = 160 g of Sodium hydroxide. 160 g of Sodium hydroxide = 1 mol × 160 / 40 = 4 mol. Hence ” 4 moles contained in 160 g of sodium hydroxide.

## How many moles are there in 40g of NaOH?

1 mole of NaOH =40g by mass /40g by molar mass. Which is =1. 1 mole of NaOH contains 7.53*10^23 atoms.