Advertisements
Advertisements
प्रश्न
Calculate the mass of 0.1 mole of the following:
CaCO3
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
Advertisements
उत्तर
Molar weight = [40 + 12 + (3 x 16)] = 100 g
∴ 0.1 mole of CaCO3 has mass =100 (molar mass) x 0.1
= 10 g
संबंधित प्रश्न
Convert into mole.
12 g of oxygen gas
Convert into mole.
20 g of water
What is meant by ‘a mole of carbon atoms’ ?
Calculate the number of moles of CO2 which contain 8.00 g of O2
Calculate the mass of 0.1 mole of the following:
Mg
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
Correct the statement, if required.
One mole of chlorine contains 6.023 x 1010 atoms of chlorine.
Solid ammonium dichromate decomposes as:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate the quantity in moles of (NH4)2Cr2O7.
How many grams are there in the following?
2 moles of the hydrogen molecule, H2.
How many grams are there in the following?
3 moles of chlorine molecule, Cl2.
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol–1.
