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What is the mass of hydrogen chloride that reacts with 5.1 g of ammonia?
- A. 3.65g
- B. 10.95g
- C. 7.05g
- D. 21.15g
Correct Answer: B
Rationale: To find the mass of hydrogen chloride that reacts with 5.1g of ammonia, we need to use the stoichiometry of the balanced chemical equation. The balanced equation for the reaction between ammonia (NH3) and hydrogen chloride (HCl) is:
NH3 + HCl → NH4Cl
From the equation, we can see that 1 mole of NH3 reacts with 1 mole of HCl to form 1 mole of NH4Cl. Therefore, the molar ratio of NH3 to HCl is 1:1.
First, we need to convert the given mass of ammonia (5.1g) to moles using the molar mass of ammonia (17g/mol):
5.1g NH3 * (1 mol NH3 / 17g NH3) = 0.3 mol NH3
Since the molar ratio of NH3 to HCl is 1:1, the moles of HCl that react with
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