Answer:
234 g
Explanation:
We know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.
M_r: 22.99 58.44
2Na + Cl₂ ⟶ 2NaCl
Mass/g: 92.0
1. Calculate the moles of Na
Moles Na = 92.0 × 1/22.99
Moles Na = 4.002 mol Na
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2. Calculate the moles of NaCl
The molar ratio is 2 mol NaCl:2 mol Na.
Moles of NaCl = 4.002 × 2/2
Moles of NaCl = 4.002 mol NaCl
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3. Calculate the mass of NaCl
Mass of NaCl = 4.002 × 58.44
Mass of NaCl = 234 g
