Question

the number of moles of 42g of nitrogen atom is dash​

Answer 1

Explanation:

Explanation; 14g N x 1 mol/14.01 g = 1.0 mol (rounded to correct number of sig figs I feel 14 isn't an exact number.)

Answer 2

Answer

Mass of nitogen molecules =42 g

Molar mass of nitogen molecules=42 g

Each nitrogen molecules contain 2 nitrogen atoms.

Moles of nitrogen molecules =

Molar mass

Mass

=

28

42

=1.5 moles

Number of atoms of nitrogen present in 42 grams of nitrogen gas =2×no. of moles×N

A =2×1.5×6.022×10

23

=1.8066×10

24

atoms

Explanation:

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