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6 moles

22.2 moles

5 moles

42 grams

## What is the mass of 5 moles of nitrogen?

Hence, Its molecular mass = 14 amu (7 protons and 7 neutrons.

14 grams

## What is the mass of 0.5 mole of oxygen gas?

That is, mass of one mole of a set molecules is gram molecular mass of that molecule. For example, molecular mass of a water molecule is 18 amu (2 amu for 2 hydrogen atoms, and 16 amu for one oxygen atom). So, mass of one mole of water would be 18 grams. Thus, mass of 0.5 moles of water would be 9 grams.

1.11111

0.5 mole

## How many moles are in 25 grams of water show work?

1 Expert Answer Hydrogen has an atomic weight of 1; and oxygen has an atomic weight of 16 (check the periodic table for the atomic weights). So, one mole of water has a mass of 16 +1+1 = 18 grams. So, if one mole has a mass of 18 grams, 25 grams would have a mass of 25 grams/ 18 grams per mole or 1.39 moles.

## How do you convert 20 grams of water to moles?

Convert into mole 20 gram of water

1. 20 h2o =20×2+20×8=200moles.
2. given mass is 20.
3. u r in which class.
4. in 9th class.

## How do you convert 12 grams of oxygen to moles?

Answer. Here we are given the mass of oxygen gas as 12 grams. Molar mass = 2×16 = 32 grams.

0.2 moles

## What is Avogadro number constant?

Avogadro’s number, number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.× 1023. The units may be electrons, atoms, ions, or molecules, depending on the nature of the substance and the character of the reaction (if any). See alsoAvogadro’s law.

## How did Avogadro calculate the number?

The best estimate of the charge on an electron based on modern experiments is 1.x 10-19 coulombs per electron. If you divide the charge on a mole of electrons by the charge on a single electron you obtain a value of Avogadro’s number of 6.x 1023 particles per mole.

2021-06-17