Answer:
The mass of 4.5 moles of sodium fluoride is 189g.
Step-by-step explanation:
Answer: 103.5 g Na
Explanation: 1 mole of Na is equal to its molar mass which is 23 g.
Solution:
4.5 moles Na x 23 g Na / 1 mole Na
= 103.5 g Na
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