If mass of 5 mole `AB_(2)` is `125xx10^(-3)kg` and mass of 10 mole `A_(2)B_(2)` is `300xx10^(-3)kg`. Then correct molar mass of A and B respectively (in kg/mol):

5 moles of AB_(2) weigh 125 xx 10^(-3) kg and 10 moles of A_(2)B_(2) weigh 300 xx 10^(-3) kg. What is the sum of molar mass of A (M_(A)) and molar mass of B(M_(B)) in g "mol"^(-1) ?

Mass of mars is 6.42xx10^(29) kg and mass of the sun is 1.99xx10^(30)kg . What is the total mass?

Mass of earth is (5.97 xx 10 ^(24)) kg and mass of moon is (7.35 xx 10 ^(22)) kg. What is the total mass of the two ?

The rest mass of an electron is 9.11xx10^(-31) kg. Molar mass of the electron is

The mass of a molecule of hydrogen is 3.332xx10^(-27) kg. Find the mass of 1 kg mol of hydrogen gas.

The mass of 1 mole of neutrons (m_(n) = 1.675 xx 10^(-27) kg) is: