Blackboard chalk is a mixture of limestone and gypsum.A piece of blackboard chalk weighing 5.42g was immersed in HCl,the CO2 produced weighed 1.11g.What is the percentage of limestone in the chalk?Thank you
1 Answer
Oct 18, 2017
46,5%
Explanation:
You must write the balanced reaction:
That means that from 1 mol of
To found the % we have