Advertisements
Advertisements
प्रश्न
What is the mass of 0.2 mole of oxygen atoms?
उत्तर
Mass of one mole of oxygen atoms = 16 g
Then, mass of 0.2 mole of oxygen atoms = 0.2 × 16g = 3.2 g
APPEARS IN
संबंधित प्रश्न
What is the mass of 1 mole of nitrogen atoms?
Calculate the number of moles in 12g of oxygen gas.
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)
Define the term Relative atomic mass.
Explain the term : Gram atom
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 and number of molecules present in 1.4 g of ethylene gas. What is the volume occupied by the same amount of ethylene?
Define or explain the term:
Gram atom
Find the number of molecules in 3.2 g of SO2.
A student puts his signature with a graphite pencil. If the mass of carbon in the signature is 10-12 g, calculate the number of carbon atoms in the signature.
