Atomic Mass Of N2

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What mass of nitrogen, N2, will contain the same number of molecules as 1.8 g of water, H2O ?

  1. Atomic Mass Of Nitrogen
  2. Atomic Weight Of Nitrogen
  3. Atomic Mass Of N2o5

(Atomic masses : N = 14 u ; H = 1 u ; O = 16 u)

››More information on molar mass and molecular weight. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together.

  • As we know that mass = number of moles × molar mass Molar mass of N = 14 Molar mass of N2 =14 × 2 = 28 Mass of N2 = 0.5 × 28 = 14 g.
  • Oxygen has a molar mass of 15.9994 g/mol and nitrogen has a molar mass of 14.0067 g/mol. Since both of these elements are diatomic in air - O 2 and N 2, the molar mass of oxygen gas is aprox. 32 g/mol and the molar mass of nitrogen gas is aprox.
  • What is the mass, in grams, of 4.60 mol of N2? April 8, 2021 by Answerout Here is the answer for the question – The molar mass of nitrogen (N2) is 28.02 g/mol.

Solution

Mass of water = 1.8g

We know that equal moles of all substance contain equal number of molecules (1 mole of all substances contains 6.022 × 1023 molecules).
The first step will be to convert 1.8g water into moles.

1 mole of water = (2 × 1) + (1 × 16) = 18g

18g water = 1 mole

1.8g water = 0.1 moles

Since, equal moles of all substances contain equal number of molecules, 0.1 moles of water will have the same number of molecules as present in 0.1 moles of nitrogen.

The next step will be to find the mass of 0.1 moles of nitrogen in grams.

1 mole of nitrogen = 28g

0.1 moles of nitrogen = 28 × 0.1 = 2.8g

Hence, 2.8g nitrogen will contain the same number of molecules as present in 1.8g water.

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Molecular mass of nitrogen

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Atomic Mass Of Nitrogen

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If the atomic weight of nitrogen is 14.0, what is the mass of one mole of nitrogen gas #N_2#?

1 Answer

The mass of one mole (molar mass) of nitrogen gas #('N'_2')# is #'28.0 g/mol'#.

Atomic Weight Of Nitrogen

Explanation:

The molar mass of an element is its relative atomic mass (atomic weight) on the periodic table in g/mol. The molar mass of the element nitrogen is #'14.0 g/mol'#. In order to determine the molar mass of nitrogen gas #('N'_2')#, multiply the molar mass of the element nitrogen times two.

Molar mass of nitrogen gas #('N'_2')##=14.0'g/mol'xx2##=##28.0'g/mol'#

Atomic Mass Of N2o5

AtomicAtomic mass of nitrogen gas

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