Calendar: 1869-1870 Page 545

MEDICAL DEPARTMENT 547 III -Cljnnfetro Exemplify the meaning of the terms chemical equivalent and combination in multiple proportion Represent in symbols the changes which occur when solution of potassic sulphate is mixed with one of baric nitrate and give the relative weights of each substance both before and after admixture when complete mutual decomposition occurs supposing 171 grammes of potassic sulphate to be employed mixture of cubic centimetres of carbonic oxide is made with 12 of oxygen and fired by the electric spark What change in volume if any would occur and what would be the bulk of each of the component gases assuming the temperature and pressure to be the same before and after firing Six litres of air are mixed with 10 litres of hydrogen Bar at 750 mm and temperature 15 What would be the bulk of the gas alter firing the mixture and what the proportions of the constituent gases at and 760 mm Supposing that mercury freezes at -39 sulphurous anhy- dride boils at 13 aldehyde at 68 and ether at 95 what would be the corresponding temperatures in degrees centigrade If stearic acid melts at 70 and paraffin at 61 what would be the corresponding degrees on Fahrenheit's scale Explain the construction of the gold leaf electroscope State how you would charge it negatively by induction and how it may be used to ascertain the charge of any electrified body How would you obtain solution of pure silica by dialysis Supposing diffusion tube to be filled with pure hydrogen how would you proceed to determine the diffusiveness of this gas What relation exists between the specific gravity and the diffusiveness of gas IV -Cijitntstrg Fifteen grammes of potassic chlorate are decomposed by heat What would be the products and the weight of each and what the volume of gas calculated at and 760 mm bar Μ μ