Chemistry
Calculate the percentage of platinum in ammonium chloroplatinate (NH4)2 PtCl6
(Give your answer correct to the nearest whole number.
[N = 14, H = 1, Cl = 35.5, Pt = 195]
Related Questions
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]
Calculate the percentage of phosphorus in the fertilizer superphosphate Ca(H2PO4)2. (correct to 1 dp)
[H = 1 ; O = 16 ; P = 31 ; Ca = 40]
Calculate the percentage of nitrogen in aluminium nitride.
[Al = 27, N = 14]
Calculate the percentage of sodium in sodium aluminium fluoride (Na3AlF6) correct to the nearest whole number.
[F = 19 ; Na = 23 ; Al = 27]