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# Calculate the mass of 0.5 mole of N2 gas (mass from mole of molecule).

Molar mass of N2 is 28(since atomic weight of nitrogen is 14and forN2=14*2). So mass of 1 mole of N2 is 28g.Therefore mass of 0.5 mole is 28/2 =14g

N2 mass =28 for 1 mole For .5 mole (28/2)=14

Molar mass of N2 is 28 (since atomic weight of nitrogen is 14 and for N2=14*2) So mass of 1 mole of N2 is 28g. Therefore, mass of 0.5 mole is 28/2=14g

Tutor

mass of one mole of nitrogen gas is 28 gram(14*2) mass of 0.5 mole of nitrogen is 14 grams.

Teacher

Atomic Number of N2 gas is 14 and therefore the molecular weight is 14 x 2 = 28 gm Therefore the mass of 0.5 mole of N2 is 28/2 = 14 gm Ans

Mass of N2= 14*2 = 28g Mass of 0.5 mole = 28/0.5 =14g

Maths Trainer with 21 years of experience

Nitrogen gas is N2. Molecular mass of N2 is 28 g 1 mole weighs 28g 0.5 moles weigh 14g

N2 has two atoms and atomic number OF Nitrogen is 7. so it`s molecular mass = 14 amu (7 protons and 7 neutrons) molecular mass of one mole of N2 = 28 gm/mole so mass of .5 mole of N2 = .5x28 gm = 14 gm.

N2 has two atoms and atomic number OF Nitrogen is 7.

so it`s molecular mass = 14 amu

(7 protons and 7 neutrons)

molecular mass of one mole of N2 = 28 gm/mole

so mass of .5 mole of N2 = .5x28 gm

= 14 gm.

Tutor

Mass of 1 mole of nitrogen gas is 2(atomic mass)=. 2x 14 = 28 Therefore 0.5mole has mass of 14

Molar mass of N2 is 28 (since atomic weight of nitrogen is 14 and for ñ2=14*2) So mass of 1mole of n2 is 28g. Therefore mass of 0.5 mole is 28/2=14g

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