Question

The mass of total number of moles of brown coloured gas produced by thermal decomposition of lead nitrate in a balanced chemical equation is

Answer 1

Answer: 184 grams of Nitrogen dioxide is produced.

Explanation: Thermal decomposition of lead nitrate is given as:

$2Pb(NO_3)_2(s)\overset{\Delta }{\rightarrow}2PbO(s)+4NO_2(g)+O_2(g)$

Brown colored gas produced is $NO_2$

From the reaction, 4 moles of nitrogen dioxide is formed.

Mass can be calculated from the formula:

$Moles=\frac{\text{Given mass}}{\text{Molar mass}}$

Molar mass of $NO_2=46g/mol$

Putting the values in above equation, we get

$4mol=\frac{\text{mass of nitrogen dioxide produced}}{46g/mol}$

Mass of nitrogen dioxide produced = 184 grams

Answer 2

Answer:

Nitrogen Dioxide.

Explanation: