# A reaction of 44.7 g of Na and 35.7 g of Br yields 45.2 g of NaBr. What is the percent yield?2 Na(s)Br2(g)2 NaBr(s)

Question
1 views help_outlineImage TranscriptioncloseA reaction of 44.7 g of Na and 35.7 g of Br yields 45.2 g of NaBr. What is the percent yield? 2 Na(s)Br2(g) 2 NaBr(s) fullscreen
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Step 1

Given:

Mass of Na = 44.7 g.

Mass of Br2 = 35.7 g.

Actual yield of NaBr = 45.2 g

Balanced chemical reaction is given by:

Step 2

Calculation for moles of Na: help_outlineImage Transcriptionclosemass number of moles molar mass 44.7 g number of moles = 22.989 g/mol number of moles = 1.944 moles. fullscreen
Step 3

Calculation for moles of... help_outlineImage Transcriptionclosemass number of moles molar mass 35.7 g number of moles = 159.808 g/mol number of moles 0.2234 moles fullscreen

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