Mole ConceptHard

Question

What mass of solid ammonium carbonate H2NCOONH4 when vaporized at 273OC will have a volume of 8.96 L at 760 mm of pressure? Assume that the solid completely decomposes as H2NCOONH4(s) → CO2(g) + 2NH3(g)

Options

A.15.6 g
B.5.2 g
C.46.8 g
D.7.8 g

Solution

Total moles of gases = $\frac{1 \times 8.96}{0.0821 \times 546} = 0.2$

Hence, the mass of ammonium carbonate $\frac{78}{3} \times 0.2 = 5.2\text{ g}$

Create a free account to view solution

View Solution Free
Topic: Mole Concept·Practice all Mole Concept questions

More Mole Concept Questions

$A + 2\text{ }B \longrightarrow {AB}_{2}$; 36.0 g of 'A' (Molar mass: $60\text{ }g{\text{ }mol}^{- 1}$ ) and 56.0 g of '...Which of the following statements is/are correct ?...The minimum mass of water needed to slake 1 kg of quicklime, assuming no loss by evaporation, is...A sample of oleum is labelled as 112%. In 200 g of this sample, 18 g water is added. The resulting solution will contain...When a hydrocarbon is burnt completely, the ratio of masses of CO2 and H2O formed is 44: 27. The hydrocarbon is...