An element A is converted to its bromide and the bromine precipitated as AgBr.0.722g of the bromide gives 1.32g of AgBr. Valency of the element A is (Atomic weight , of A=91.2,Ag=108;Br=80)

In an estimation of bromine by Carius method , 1.6 g of an organic compound gave 1.88 g of AgBr . The mass percentage of bromine in the compound is ________ ( Atomic mass , Ag=108 , Br = 80 g "mol"^(-1) )

In the Carius method of estimation of halogens, 0.250 g of an organic compound gives 0.141 g of AgBr Calculate the percentage of bromine in the compound. (At. wt. of Ag= 108, Br= 80).

A certain metal salt solution is electrolysed in series with a silver coulometer. The weight of silver and the metal deposited are 0.5094g and 0.2653g . Calculate the valency of the metal if its atomic weight is nearly that of silver.

0.9 g Al reacts with dil. HCl to give H_(2) . The volume of H_(2) evolved at STP is (Atomic weight of Al = 27)

In Carius method of estimation of halogens 250 mg of an organic compound gave 141 mg of AgBr . The percentage of bromine in the compound is (atomic mass Ag = 108, Br = 80 )

A solid element has specific heat 1 J g^(-1)K^(-1) . If the equivalent weight of the element is 9. Identify the valency and atomic weight of element.

A carbon compound contains 12.8% of carbon, 2.1% of hydrogen and 85.1% of bromine. The molecular weight of the compound is 187.9 . Calculatte the molecular formula of the compound. (Atomic weight of H +1.008, C = 12.0 and Br = 79. 9))

A 1.0g sample of a pure organic compound containing chlorine is fused with Na_(2)O to convert chlorine to NaCl. The sample is then dissolved in water, and the chloride precipitated with AgNO_(3) ​ , giving 1.96g of AgCl. If the molecular weight of organic compound is 147, how many chlorine atoms does each molecule contain?

An element of density 8.0 g/cm3 forms an FCC lattice with unit cell edge of 300 pm. Calculate the number of atoms present in 0.5kg of the element.

In the Carius method of estimation of halogen. 0.25 g of an organic compound gave 0.188 g of AgBr. The percentage of bromine in the compound is (Molar mass of AgBr = 188 g mol^-1 )