I'm confused on how to do these. Please show and explain how to do these. Test/quiz may be tomorrow. Pop Quiz!!!
How do you calculate the percent composition of each of the following compounds?
a.) Magnesium hydroxide
b.) Calcium Cyanide
c.) Nickel (ii) Iodide
d.0 Copper (i) Sulfide
2 answers
HELP! Thanks
The percent composition in these problems means to calculate the percent of each element versus the entire compound.
It works this way. Suppose you have 10 lbs apples and 5 pounds oranges. What is %apples and %os.
%apples = (weight apples/total weight)*100 = (10/15)*100 = 66.67
So for Mg(OH)2, the molar mass is 58.3 (that's 24.3+16+16+1+1).
So %Mg = (24.3/58.3)&100 = ?
%O = (32/58.3)*100 = ?
etc/
It works this way. Suppose you have 10 lbs apples and 5 pounds oranges. What is %apples and %os.
%apples = (weight apples/total weight)*100 = (10/15)*100 = 66.67
So for Mg(OH)2, the molar mass is 58.3 (that's 24.3+16+16+1+1).
So %Mg = (24.3/58.3)&100 = ?
%O = (32/58.3)*100 = ?
etc/
2 answers