3.29 Question 2
of iron is added to 50cm3 of 1.0 mol/dm sulphuric acid,
Fe + H2SO4 FeSO4+H2
(a) Calculate the number of moles of sulphuric acid present,
(b) Show by calculation that sulphuric acid is the limiting reactant. [2]
(c) Calculate the mass of iron remaining after the reaction is complete. [2]
(d) Calculate the maximum volume of hydrogen formed in the reaction at rt. p [2]
(e) Calculate the theoretical yield of iron(II) sulphate at the end of the reaction. [2]
(1) The actual yield of iron(II) sulphate was 3.61 g. Calculate the percentage yield.​

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.

Which statement would indicate the presence of an acid