The equivalent mass of chlorine is 35.5 and the atomic mass of copper is 63.5. The equivalent mass of copper chloride is 99.0. Hence, formula of copper chloride is
Eq. mass of copper chloride = 99
Eq. mass of chlorine = 35.5
Eq. mass of copper = 99 – 35.5 = 63.5
Valency of copper
Formula of copper chloride is CuCl.
276 g of silver carbonate on being strongly heated yields a residue weighing
Sodium nitroprusside when added to an alkaline solution of sulphide ions produces a colouration :
An organic compound contains 20.0% C, 6.66% H, 47.33% N and the rest was oxygen. Its molar mass is 60 g . The molecular formula of the compound is
In the following reaction,
2 mol MnO2 reacts with 4 mol of HCl to form 11.2 L at STP. Thus, per cent yield of is
In Kjeldahl’s method, nitrogen present is estimated as :
Two elements X (at. wt. 75) and Y (at. wt.16) combine to give a compound having 75.8% of X. the formula of compound will be
One atom of an element weighs Its atomic mass is
In the following reaction, which choice has value twice that of the equivalent mass of the oxidising agent?
Arsenic forms two oxides, one of which contains 65.2% and the other 75.7% of the element. Hence, equivalent masses of arsenic are in the ratio
Insulin contains 3.4% sulphur. What will be the minimum molecular weight of insulin?