Tin metal is reacted with hydrochloric acid according to the following equation. 0.240 moles of Sn is reacted with 0.320 mol of HCl. Calculate the mass of hydrogen gas liberated by the reaction.
Sn + 2 HCl $\rightarrow$ H₂ + SnCl₂

Question

Tin metal is reacted with hydrochloric acid according to the following equation. 0.240 moles of Sn is reacted with 0.320 mol of HCl. Calculate the mass of hydrogen gas liberated by the reaction.
Sn + 2 HCl

\rightarrow

H₂ + SnCl₂

Quizplus · Accepted Answer

The balanced chemical equation is:Sn + 2 HCl → H2 + SnCl2From the equation, we can see that 1 mole of Sn reacts with 2 moles of HCl to produce 1 mole of H2.Therefore, 0.240 moles of Sn will react with 0.240 x 2 = 0.480 moles of HCl to produce 0.240 moles of H2.The molar mass of H2 is 2.016 g/mol.Therefore, the mass of hydrogen gas liberated by the reaction is:0.240 moles x 2.016 g/mol = 0.484 gHence, the correct answer is A) 0.323 g.

Tin Metal Is Reacted with Hydrochloric Acid According to the Following