Advertisements
Advertisements
प्रश्न
Find the number of molecules in 73 g of HCl.
Advertisements
उत्तर
HCl molecular mass = 1 + 35.5 = 36.5 g
36.5 g of HCl = 6.03 × 1023 molecules
∴ 73 g of molecules = `(6.03 xx 10^(23))/36.5 xx 73`
= 12.06 × 1023
= 1.2 × 1024
संबंधित प्रश्न
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
Convert into mole.
12 g of oxygen gas
Fill in the following blanks :
64 g of oxygen gas contains ................ moles of oxygen atoms.
The ratio of moles of atoms in 12 g of magnesium and 16 g of sulphur will be :
Explain the term:
Gram atom
Which of the following would weight the least?
[Atomic masses : Ag = 108, N - 14, O = 16,C = 12]
Calculate the number of molecules in one Kg of calcium chloride.
Calculate the number of atoms in the following:
52 moles of He
From the equation for burning of hydrogen and oxygen
\[\ce{2H2 + O2 -> 2H2O}\] (Steam)
Write down the number of mole (or moles) of steam obtained from 0.5 moles of oxygen.
Compute the difference in masses of 103 moles each of magnesium atoms and magnesium ions.
(Mass of an electron = 9.1×10–31 kg)
