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In the reaction 2Na + Cl2 → 2NaCl, how many grams of NaCl can be produced from 2

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Question: In the reaction 2Na + Cl2 → 2NaCl, how many grams of NaCl can be produced from 2 moles of Na? (2021)

Options:

  1. 58.5 g
  2. 117 g
  3. 29.25 g
  4. 146 g

Correct Answer: 117 g

Exam Year: 2021

Solution: 

2 moles of Na produce 2 moles of NaCl. Molar mass of NaCl = 58.5 g/mol. Therefore, 2 moles of NaCl = 2 × 58.5 g = 117 g.

In the reaction 2Na + Cl2 → 2NaCl, how many grams of NaCl can be produced from 2

Practice Questions

Q1
In the reaction 2Na + Cl2 → 2NaCl, how many grams of NaCl can be produced from 2 moles of Na? (2021)
  1. 58.5 g
  2. 117 g
  3. 29.25 g
  4. 146 g

Questions & Step-by-Step Solutions

In the reaction 2Na + Cl2 → 2NaCl, how many grams of NaCl can be produced from 2 moles of Na? (2021)
  • Step 1: Identify the reaction: 2Na + Cl2 → 2NaCl.
  • Step 2: Understand that 2 moles of Na will produce 2 moles of NaCl according to the reaction.
  • Step 3: Find the molar mass of NaCl. It is 58.5 grams per mole.
  • Step 4: Calculate the total grams of NaCl produced from 2 moles: 2 moles × 58.5 g/mole = 117 grams.
  • Stoichiometry – Understanding the mole ratio between reactants and products in a chemical reaction.
  • Molar Mass Calculation – Calculating the mass of a compound using its molar mass.
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