Show all working for each of the calculations below. 1. Potassium hydroxide reacts with Phosphoric acid to produce Potassium phosphate and
water. What mass of potassium phosphate could be produced when a solution containing
25.2 g of potassium hydroxide reacts with excess Phosphoric acid?
I
2. Under the right conditions. Hydrogen and Oxygen react to form steam. What volume of
Oxygen would be required to react with excess hydrogen to produce 672 cm'of steam if
the volumes are measured at stp?
3. When zinc nitrate is heated, zinc oxide, nitrogen dioxide(NO) and oxygen gas are
produced
i
Calculate the mass of Zinc oxide produced if 38.5 g of zinc nitrate is heated.
ii.
Determine the volume of Nitrogen dioxide gas evolved at rtp