Chemistry
What is the mass of nitrogen in 1000 kg of urea [CO(NH2)2].
[C = 12] (Answer to the nearest kg.)
Related Questions
Give one word or phrase for : The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.
Find the total percentage of oxygen in magnesium nitrate crystals : Mg(NO3)2. 6H2O
[O = 16, N = 14, H = 1, Mg = 24]
Calculate the % of boron [B] in borax Na2B4O7.10H2O.
[H = 1, B = 11, O = 16, Na = 23]
If a crop of wheat removes 20 kg of nitrogen per hectare of soil, what mass in kg. of the fertilizer calcium nitrate would be required to replace the nitrogen in a 10 hectare field.
[N = 14 ; O = 16 ; Ca = 40]