How many grams of sulfur (S) will be required to react with 5 g of sodium (Na) to produce Na2S

How many grams of sulfur (S) will be required to react with 5 g of sodium (Na) to produce Na2S?

A) 3.5

B) 7.0

C) 1.7

D) 6.4

Solution: Let's write an equation for the reaction of sodium and sulfur to produce Na2S.

Na + S --> Na2S

Now, we need to balance it.

2Na + S --> Na2S

According to the coefficients in the balanced equation, we need to react two moles of sodium for 1 mole of sulfur.

5g Na( 1mol Na/23gNa)(1mol S/2mol Na)(32g S/1molS) = 3.478g, A

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