Advertisements
Advertisements
प्रश्न
Calculate the molar mass of the following substance:
Hydrochloric acid, HCl
Advertisements
उत्तर
Molar mass of HCI = atomic mass of H + atomic mass of Cl
= (1 + 35.5) u
= 36.5 u
APPEARS IN
संबंधित प्रश्न
Convert into mole.
12 g of oxygen gas
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
If 0.2 mol of the following substance is required how many grams of that substance should be taken?
Sodium chloride
Define the term Relative atomic mass.
Given that the relative molecular mass of copper oxide is 80, what volume of ammonia (measured at STP) is required to completely reduce 120g of copper oxide? The equation for the reaction is :
3CuO + 2NH3 → 3Cu + 3H2O + N2
Calculate the mass of 0.1 mole of the following:
Na2SO4.10H2O
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
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.
Compute the difference in masses of 103 moles each of magnesium atoms and magnesium ions.
(Mass of an electron = 9.1×10–31 kg)
The number of atoms present in 0.1 mole of P4 (at. mass = 31) is ______.
Deduce the number of molecules of the following compound in the given quantity.
90g water
