convert the mass to moles
write the balanced equation
see how much excess Br remains from 40g of CaBr2 -- call that x grams
Multiply that by 10 lbs/x g
Good practice in unit conversions!
A solution containing 40 g of calcium bromide requires 14.2 g of chlorine to react completely with it and 22,2 g of calcium chloride is produced in addition to ehaever bromine is obtained. How many grams of calcium bromide are required to produce 10.0 pounds of bromine?
1 answer
1 answer