Chemist often need to know what elements are present in a compound and in what percentage. The percent composition is the percent by mass of each element in a compound. % by mass= mass of element divided by mass of compound * 100%.
using the above formula calculate the percentage composition of the following:
a. For compound (Ca(OH)2) or calcium hydroxide find the percent composition of the element calcium (Ca)
b. Dichlorine heptoxide (Cl2O7) is a highly reactive compound used in some organic synthesis reaction. Calculate the percent composition of chlorine and oxygen dichlorine heptoxide.
Answers
Explanation:
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