Hydrogen and chlorine react according to the equation
$$H_2(g) + Cl_2(g) \rightarrow 2HCl(g)$$
3 mole of H$_2$, and 2 mole of Cl$_2$, are placed in a vessel and sealed - VCE - SSCE Chemistry - Question 10 - 2005 - Paper 1
Question 10
Hydrogen and chlorine react according to the equation
$$H_2(g) + Cl_2(g) \rightarrow 2HCl(g)$$
3 mole of H$_2$, and 2 mole of Cl$_2$, are placed in a vessel and se... show full transcript
Worked Solution & Example Answer:Hydrogen and chlorine react according to the equation
$$H_2(g) + Cl_2(g) \rightarrow 2HCl(g)$$
3 mole of H$_2$, and 2 mole of Cl$_2$, are placed in a vessel and sealed - VCE - SSCE Chemistry - Question 10 - 2005 - Paper 1
Step 1
Determine the Reaction Stoichiometry
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Answer
According to the balanced chemical equation, the ratio of hydrogen to chlorine is 1:1, which means 1 mole of H2 reacts with 1 mole of Cl2 to produce 2 moles of HCl.
Step 2
Calculate the Moles of HCl Produced
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Answer
Given that we have 3 moles of H2 and 2 moles of Cl2, H2 is the limiting reactant. Therefore, 3 moles of H2 will produce 6 moles of HCl.
Step 3
Identify Remaining Reactants
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Answer
Since 3 moles of H2 react with 3 moles of Cl2, we will consume all the H2 and only 1 mole of Cl2 will remain unreacted.
Step 4
Final Composition of the Vessel
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Answer
When the reaction is complete, the vessel will contain 6 moles of HCl and 1 mole of Cl2. Hence, the correct answer is D.
