Advertisements
Advertisements
प्रश्न
Define the term:
Mole
Advertisements
उत्तर
Mole is the amount of a substance containing elementary particles like atoms, molecules or ions in 12 g of carbon - 12.
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Sulphur molecule, S8
Calculate the molar mass of the following substance:
Nitric acid, HNO3
Convert into mole.
20 g of water
What name is given to the amount of substance containing this number of atoms ?
Define mole. What are the two things that a mole represents.
Explain with examples what is meant by a 'mole' of a substance.
Explain the term:
Gram mole
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.
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?
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.
