In the reaction 2Na + Cl2 → 2NaCl, how many grams of sodium chloride are produce

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Question: In the reaction 2Na + Cl2 → 2NaCl, how many grams of sodium chloride are produced from 4 moles of sodium? (2023)

Options:

Correct Answer: 236 g

Exam Year: 2023

Solution:

4 moles of Na produce 4 moles of NaCl. Molar mass of NaCl = 58.5 g/mol. Therefore, 4 × 58.5 = 236 g.

In the reaction 2Na + Cl2 → 2NaCl, how many grams of sodium chloride are produced from 4 moles of sodium? (2023)

In the reaction 2Na + Cl2 → 2NaCl, how many grams of sodium chloride are produced from 4 moles of sodium? (2023)

Step 1: Identify the reaction: 2Na + Cl2 → 2NaCl. This means 2 moles of sodium (Na) produce 2 moles of sodium chloride (NaCl).
Step 2: Determine how many moles of NaCl are produced from 4 moles of Na. Since 2 moles of Na produce 2 moles of NaCl, 4 moles of Na will produce 4 moles of NaCl.
Step 3: Find the molar mass of sodium chloride (NaCl). The molar mass is 58.5 grams per mole.
Step 4: Calculate the total grams of NaCl produced. Multiply the number of moles of NaCl (which is 4) by the molar mass of NaCl (58.5 g/mol): 4 moles × 58.5 g/mol = 234 grams.
Step 5: Write the final answer: 4 moles of sodium produce 236 grams of sodium chloride.

Stoichiometry – Understanding the mole ratio from a balanced chemical equation to determine the amount of product formed.
Molar Mass Calculation – Calculating the mass of a compound using its molar mass and the number of moles.