Advertisements
Advertisements
प्रश्न
Calculate the mass in grams of 0.17 mole of hydrogen sulphide, H2S. (Atomic masses : H = 1 u, S = 32 u)
Advertisements
उत्तर
Moles of hydrogen sulphide = 0.17
Molar mass of hydrogen sulphide = (2 × 1) + (1 × 32)g = 34g
1 mole of hydrogen sulphide weighs = 34g
Therefore, mass of 0.17 moles of hydrogen sulphide = 34 × 0.17 = 5.78g
Hence, 0.17 moles of hydrogen sulphide weigh 5.78 grams.
APPEARS IN
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Hydrochloric acid, HCl
Which of the following pair of elements represents a mole ratio of 1 : 1 ?
Deduce the number of molecules of the following compound in the given quantity.
32g oxygen
Fill in the blank
Avogadro's number is equal to ______
A sample of ammonium nitrate when heated yields 8.96 litres of steam (measured at STP)
NH4NO3 → N2O + 2H2O
Determine the percentage of oxygen in the ammonium nitrate?
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
How many moles of carbon dioxide are produced when one mole of octane burns?
How many grams of Al are present in 0.2 mole of it?
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)
Calculate the number of atoms in the following:
52 amu of He
Calculate the number of moles in 27g of Al.
