Question

Join these sentences using an absolute phrase: The soldiers arrived. The mob disappeared.

1. The soldiers arrived.

2. The soldiers having arrived, the mob disappeared.

3. The mob disappeared.​

Answer 1

The soldiers arrived but the mob dissapeared

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

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