Sodium (Na) reacts with nitrogen gas (N2) to produce sodium nitride. If a student collects 2.5 moles of sodium nitride (NaN3) after the reaction has been completed, determine the number of moles of nitrogen that were initially present.

2Na + 3N2 -> 2NaN3

Your

3.75 mole N2

1.2 mole N2

3.87 mole N2

1.67 moles of N2 produce 2.5moles of NaN3

Explanation:

Equation of reaction:

2Na + 3N₂ → 2NaN₃

From the equation of reaction, 3 moles of N₂ produces 2 moles of NaN₃

How much is gotten from 2.5moles of 2NaN₃?

2 moles of N₂ = 3 moles of NaN₃

X moles of N₂ = 2.5 moles of NaN₃

X = (2.5 × 2) / 3

X = 1.67moles of N₂

1.67 moles of N₂ produces 2.5moles of NaN₃

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph