A lawn-care company applies solid ammonium nitrate fertilizer ( ) to turfgrass
CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A lawn-care company applies solid ammonium nitrate fertilizer (NH4NO3) to turfgrass. A sealed bag contains 1.25kg of the fertilizer.
Average atomic masses (amu): N = 14.01, H = 1.008, O = 16.00.
Complete the following tasks.
(a) Calculate the molar mass of ammonium nitrate.
(b) Determine the number of moles of ammonium nitrate in the 1.25kg bag.
(c) Calculate the total number of nitrate ions present in the entire bag. Express your answer in scientific notation to three significant figures.