Answer to Question #191234 in General Chemistry for Katira

Question #191234

Aqueous hydrobromic acid HBr

 reacts with solid sodium hydroxide NaOH

 to produce aqueous sodium bromide NaBr

 and liquid water H

2

O

. If 11.2

g

of sodium bromide is produced from the reaction of 26.7

g

 of hydrobromic acid and 17.6

g

 of sodium hydroxide, calculate the percent yield of sodium bromide. 


Round your answer to 3

 significant figures


1
Expert's answer
2021-05-12T06:28:50-0400

HBr + NaOH → NaBr + H2O

M(HBr) = 80.91 g/mol

M(NaOH) = 39.99 g/mol

n(HBr) < n(NaOH)

So, HBr is a limiting reactant.

n(NaBr) = n(HBr) = 0.329 mol

m(NaBr) = 102.89 g/mol

Proportion:

33.85 – 100 %

11.2 – x

Answer: 33.0 %


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