Advertisements
Advertisements
प्रश्न
Correct the statement, if required.
The relative atomic mass of an element is the number of times one molecule of an element is heavier than `1/12` the mass of an atom of C12.
Advertisements
उत्तर
The relative atomic mass of an element is the number of times one atom of an element is heavier than `1/12` the mass of an atom of C12.
APPEARS IN
संबंधित प्रश्न
What is the mass of 10 moles of sodium sulphite (Na2SO3)?
What name is given to the amount of substance containing this number of atoms ?
Explain the term:
Gram mole
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.
Define or explain the term:
Relative atomic mass
Calculate the number of atoms in the following:
52 g of He
The number of molecules in 4.25 g of ammonia is ______.
Calcium chloride when dissolved in water dissociates into its ions according to the following equation.
\[\ce{CaCl2} (aq) → {Ca^{2+} (aq) + 2{Cl}- (aq)}\]
Calculate the number of ions obtained from CaCl2 when 222 g of it is dissolved in water.
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
