Question

# Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium bromide...

Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous sodium bromide NaBr and liquid water H2O. Suppose 20. g of hydrobromic acid is mixed with 13.1 g of sodium hydroxide. Calculate the maximum mass of sodium bromide that could be produced by the chemical reaction. Round your answer to 2 significant digits.

Chemical reaction take place as follow

HBr + NaOH NaBr + H2O

molar mass of NaOH = 39.997 gm/mole that mean 1 mole of NaOH = 39.997gm

molar mass of HBr = 80.91 gm/mole that mean 1 mole of HBr = 80.91gm

According to reaction NaOH and HBr react equimolar proportion

that mean 39.997 gm NaOH react with 80.91 gm HBr then 13.1 gm NaOH require 80.9113.1/39.997 = 26.5 gm of

HBr but it is taken 20 gm so HBr is limiting reactant teact comletly and NaOH is excess reactant remain some amount unreacted.

1 mole of HBr produce 1 mole of NaBr that mean 80.91 gm of HBr produce 102.894 gm(molar mass of NaBr) of NaBr then 20 gm of HBr produce 20102.894/80.91 = 25.434 gm of NaBr

maximum mass of sodium bromide that could be produced = 25.434 gm

#### Earn Coins

Coins can be redeemed for fabulous gifts.