# How many moles of water are produced?

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For any balanced chemical reaction, whole numbers (coefficients) are used to show the quantities (generally in moles ) of both the reactants and products. For example, when oxygen and hydrogen react to produce water, one mole of oxygen reacts with two moles of hydrogen to produce two moles of water.

## How many atoms are in 2 moles of H2O?

A. 6.02 times 10^{23} \B. 1.20 times 10^{24}…

## How many moles of O2 are produced from 6.2 moles of water?

Then we get 6.2 moles of H2 and we get 3.1 moles of O2. And that kind of makes sense, right? Because there’s this 2:1 ratio of water and oxygen.

## How many moles are there in 1 Litre of water?

The liter of water has 1000 grams. The number of moles is 1000/18 = 55.556 moles. The number of molecules is therefore 6.022*1023 * 55.556 = 3.346*1025 molecules.

## How do you find the number of moles?

Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams.

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## What is the formula for a mole?

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).

## How many atoms are in 2 moles?

after the 19th-century chemist Amedeo Avogadro, is the number we use in chemistry to represent macroscopic amounts of atoms and molecules. Thus, if we have 6.022 × 10 23 O atoms, we say we have 1 mol of O atoms. If we have 2 mol of Na atoms, we have 2 × (6.022 × 10 23) Na atoms, or 1.2044 × 10 24 Na atoms.

## How many atoms are there in 1 mole?

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro’s Number (6.0221421 x 1023).

## How many atoms are in the human body?

Short Answer. There are approximately 7 x 1027 atoms in the average human body. This is the estimate for a 70 kg adult human male. Generally, a smaller person would contain fewer atoms; a larger person would contain more atoms.

## How many moles of HCl are consumed per mole of Zn?

Since it requires 2 moles HCl for every 1 mole Zn, the HCl is limiting and will determine mass of ZnCl.

## How many mg are in a mol?

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.

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## How many moles of hydrogen are in 2.0158 grams?

Elemental hydrogen exists as a diatomic molecule, H 2. One molecule has a mass of 1.0079 + 1.0079 = 2.0158 u, while 1 mol H 2 has a mass of 2.0158 g.

## How many moles are in 500ml of water?

We started with 20ml of liquid and added another 480ml so the new volume of liquid is 20+480=500 ml. so the number of moles we started with is 0.02×0.25=0.005 moles. We haven’t added any more of the substance so we still have 0.005 moles but this is now dissolved in 500ml of liquid.

## How many grams is a mole of water?

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.