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To calculate the number of molecules we first have to calculate, the number of moles. And one mole consists of about 6.02×1023 molecules. – We can say that 18 grams of water means same as 1 mole of water , and in this NA Avogadro number of water molecules are present , which means 6.02×1023 molecules.

## How many moles are in 18 g of H2O?

18 gram of water approximately corresponds to 1 mole of water and 6.022 x 10^23 water molecules.

## How many molecules of water are in 18 moles?

– Thus 18 g of water will contain one mole of water, that is 6.023×1023 molecules. – In the second option it’s given that the number of moles is 18. Therefore 18 mole of water will contain 18×6.023×1023 number of molecules.

## How many moles are in 18 ml of water?

Thus, the mass of the water is 18g. This is the same as the molecular mass of water. Now we can calculate the moles of water present using the below formula. So, the number of moles of water will be [dfrac{{18}}{{18}} = 1] mole.

## What is the total number of molecules in an 18.0 gram sample of H2O?

18 g of water contains 1 mol of water molecules. or 18 g of water contains 6.022 x 10^23 water molecules.

## How many atoms are there in 18 gram of water?

The chemical formula of water is H2O, in water two mole of hydrogen is present and one mole of oxygen is present. So, in a single molecule of water, two mole of hydrogen are present. 18 g of water will contain ⇒1×12.046×1023=12.046×1023 atoms of hydrogen.

## What are the moles of H2O?

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. Notice that the molar mass and the formula mass are numerically the same.

## Which one will have maximum number of water molecules in 18 molecules of water?

The answer is (A) 18 moles of water. Therefore, 18 moles of water has the maximum number of molecules.

## What is the mole formula?

If you know the particles, moles, or grams of a substance, you can calculate the other two measurements by using the following equation: 1 mole = 6.022 × 1023 particles/mol = formula weight expressed in grams. … The mass of one mole (6.02 X 1023) of chromium atoms is 51.9961 grams.

## What is the mass of 18 mL of water?

Plugging in the mass of 1 mole of water and its density gives you: Volume = 18 grams / 1 gram/mL. Volume = 18 mL.

## How many electrons are there in 18 mL water?

The total numbe of electrons present in 18mL of water is 6.023×1024.

## How many electrons are there in 18g of water?

Thus 6.023 x 10^(23) molecules of water will contain 10 x 6.023 x 10^(23) electrons= 6.023 x 10^(24) electrons.

## What will be the mass of 18 g of water H2O?

Explanation: Water has a molar mass of 18.01528 g/mol≈18 g/mol . Since water has a chemical formula of H2O , there will be 2 moles of hydrogen in every mole of water.

## How many grams is 5 moles of water?

From this you can see that 5 moles of hydrogen gas would react with 2.5 of the available 3 moles of oxygen gas, to form 5 moles of water. The molar mass of water is 18 g/mol, so you would end up with 5 x 18 = 90 g of water.

## How many moles of molecules are there in 180g of H2O?

X =180/18 =10 moles.