Can someone point out what i did wrong in a and d. a is going from mole to mole. and d is going from mole to gram.

16.96 moles of sodium will needed to react with 4.24 moles of oxygen gas.

Explanation:

Moles of oxygen gas = 4.24 moles

According to reaction , 1 mole of oxygen gas reacts with 4 moles of sodium.

Then 4.24 moles of oxygen gas will react with :

of sodium

16.96 moles of sodium will needed to react with 4.24 moles of oxygen gas.

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