Advertisements
Advertisements
प्रश्न
What is the mass of 0.2 mole of oxygen atoms?
Advertisements
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
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
Calculate the weight of one molecule of oxygen.
[Avogadro’s number = 6 × 1023, O = 16 ]
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure.
(a) Find the number of moles of hydrogen present
(b) What weight of CO2can the cylinder hold under similar conditions of temperature and pressure? (H = 1 C = 12, O = 16)
(c) If the number of molecules of hydrogen in the cylinder is X, calculate the number of CO2 molecules in the cylinder with the same conditions of temperature and pressure.
(d) State the law that helped you to arrive at the above result.
Define or explain the term:
Relative atomic mass
Find the number of moles in 10 g of CaCO3.
How many grams of HCl are present in 0.1 mole of it?
If phosphorus is considered to contain P4 molecules, then calculate the number of moles in 100g of phosphorus?
Correct the statement, if required.
Under the same conditions of temperature and pressure, equal volumes of all gases contain the same number of atoms.
How many grams are there in the following?
3 moles of chlorine molecule, Cl2.
How many grams are there in the following?
4 moles of the phosphorous molecule, P4
