An element, X, forms a volatile hydride XH3 with a v...
An element, X, forms a volatile hydride XH3 with a vapour density of 17.0. The relative atomic mass of X is?
(H = 1)
34.0
31.0
20.0
14.0
Correct answer is B
Molecular Mass = Vapour density x 2 = 17.0 x 2 = 34.0
∴ Relative Atomic Mass of X in XH3 = 34 - 3
= 31.0 ∴ x = 31.0
Aluminium hydroxide is used in the dyeing industry as a ...
Solubility is practically applied in ...
What is the atomic number of Tennessine? ...
What is the chemical symbol for Cobalt? ...
The metal extracted from cassiterite is ...
Which of the following compounds will take up the molecules of bromine?...