during laboratory experiment, you are asked to obtain the percent composition of barium from the compound BaNO³ how many percent of barium is present in the given compound?
a. 49.49%
b. 52.49%
c. 54.94%
d. 55.95%
ammonium carbonate (NH⁴)²CO³ is used in smelling salts, baking powder, fire extinguisher and ceramics, what percent oxygen is present in said compound
a. 8.3%
b. 12.5%
c. 29.20%
d. 50%
an insect repellent (dibutyl succinate) is found to contain 63.16% C, 8.77 H, and 28.07% O. it's molecular mass is experimentally found to be 228 grams. what is its empirical formula?
a. C³H⁵O¹
b. C³H⁶O³
c. C³H⁷O³
d. C³H⁸O⁴
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