Question

How many molecules are in a 34 g sample of ammonia (NH₃)?

Answer 1

Hola !

34 g of NH₃ contains 12.044*10²³ molecules

Answer 2

Mass of 1 mol or (6.022×10

23 molecules) of NH 3 =14+3×1=17 g

Number o f molecules in 34 g NH 3

= 1734 ×6.022×10 23

=12.044×10 23

Number of atoms present in 1 molecule of NH 3 =4

Number of atoms in 34 g NH3

=4×12.044×10 23

≈48×10 23

Explanation:

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