28
32
44
71
Correct answer is D
500cm3 = 1.58g
=22400cm = (1.58g)/(500cm3) χ 22400cm3) = 70.78 g
= 71g
An oxide XO2 has a vapour density of 32. What is the atomic mass of X?...
8g of CH4 occupies 11.2 at S.T.P. What volume would 22g of CH3CH2CH3 occupy...
When Magnesium reacts with oxygen, heat is ...
Water for town supply is chlorinate to make it free from ...
What is the chemical symbol for Iron? ...
The type of reaction that is peculiar to benzene is? ...
An increase in the pressure of a gas results in a decrease in its ...
The following equations represent redox reactions EXCEPT ...
The principle of column chromatography is based on the ability of the constituents to ...