Advertisements
Advertisements
प्रश्न
Calculate the molar mass of the following substance:
Sulphur molecule, S8
Advertisements
उत्तर
Molar mass of sulphur molecule, S8 = 8 × atomic mass of S
= (8 × 32) u
= 256 u
APPEARS IN
संबंधित प्रश्न
Convert into mole.
12 g of oxygen gas
What name is given to the amount of substance containing this number of atoms ?
How many moles of calcium carbonate (CaCO3) are present in 10 g of the substance ? (Ca = 40 u ; C = 12 u ; O = 16 u)
Two oxides of a metal (M) have 20.12% and 11.19% oxygen. The formula of the first oxide is MO. Determine the formula of the second oxide.
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)
What mass of Ca will contain the same number of atoms as are present in 3.2 g of S?
The number of molecules in 4.25 g of ammonia is ______.
Solid ammonium dichromate decomposes as:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate the quantity in moles of nitrogen formed.
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol–1.
