Advertisements
Advertisements
प्रश्न
Calculate the number of molecules in 12.8g of sulphur dioxide gas. Take Avogadro's number as 6 x 1023.
[S = 32, 0 = 16 ]
Advertisements
उत्तर
Number of molecules in 12.8g of sulphur dioxide gas.
Molecular mass of SO2 = 64a.m.u .
So, 64g = 1 mole
12.8g = 12.8/ 64 = 0.2 mole
Now 1 mole of SO2 contains = 6 x 1023molecules
0 .2 mole of SO2 contains = 0 .2 x 6 x 1023
= 1.2 x 1023molecules.
APPEARS IN
संबंधित प्रश्न
Convert into mole.
12 g of oxygen gas
Define mole. What are the two things that a mole represents.
What weight of each element is present in 1.5 moles of sodium sulphite, Na2SO3 ?
(Atomic masses : Na = 23 u ; S = 32 u ; O = 16 u)
Calculate the mass of 0.1 mole of the following:
Na2SO4.10H2O
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
Calculate the mass of 0.1 mole of the following:
CaCl2
(Ca = 40, Na=23, Mg =24, S=32, C = 12, Cl = 35.5, O=16, H=1)
What mass of Ca will contain the same number of atoms as are present in 3.2 g of S?
Determine the number of molecules in a drop of water which weighs 0.09 g.
Which of the following weighs the least?
1 mole of any substance contains ______ molecules.
Deduce the number of molecules of the following compound in the given quantity.
90g water
