Ammonium sulfate, (NH4)2SO4, is used in fertilizers.
a. What is the percent by mass of N in (NH4)2SO4?
b. How many atoms of hydrogen are in 0.75 mol of (NH4)2SO4?
c. How many grams of oxygen are in 4.50 × 1023 formula units of (NH4)2SO4?
d. What mass of (NH4)2SO4 contains 2.50 g of sulfur?
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