# How many grams of sodium sulfide are actually formed if  1.80 g of hydrogen sulfide is bubbled into a solution containing 2.40 g of sodium hydroxide, assuming that the sodium sulfide is made in 93.0 % yield? Hint:  Set up the balanced chemical equation first.  Calculate the theoretical yield, then the actual yield.

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How many grams of sodium sulfide are actually formed if  1.80 g of hydrogen sulfide is bubbled into a solution containing 2.40 g of sodium hydroxide, assuming that the sodium sulfide is made in 93.0 % yield? Hint:  Set up the balanced chemical equation first.  Calculate the theoretical yield, then the actual yield.

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Step 1

Given,

Mass of hydrogen sulfide, H2S = 1.80 g

Mass of sodium hydroxide, NaOH = 2.40 g

Moles of H2S and NaOH can be calculated as:

Step 2

The balanced chemical reaction can be written as:

2 NaOH + H2S → Na2S + 2 H2O

From the reaction, the stoichiometric molar ratio of H2S : NaOH = 1 : 2

And the calculated molar ratio of H2S : NaOH = 1 : 1.13

That means NaOH is the limiting reagent, thus the moles of Na2S will depend on the moles of NaOH. Therefore, moles of Na2S formed can be calculated as:

Step 3

Grams of Na2S can be calc...

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