Advertisements
Advertisements
प्रश्न
Calculate the molar mass of the following substance:
Nitric acid, HNO3
Advertisements
उत्तर
Molar mass of nitric acid, HNO3 = atomic mass of H + atomic mass of N + 3 × atomic mass of O
= (1 + 14 + 3 × 16) u
= (1 + 14 + 48) u
= 63 u
APPEARS IN
संबंधित प्रश्न
If one mole of carbon atoms weighs 12 gram, what is the mass (in gram) of 1 atom of carbon?
What is the mass of 4 moles of aluminium atoms (Atomic mass of aluminium = 27)?
How many moles of oxygen atoms are present in one mole of the following compounds ?
- Al2O3
- CO2
- Cl2O7
- H2SO4
- Al2(SO4)3
Calculate the number of molecules in 12.8g of sulphur dioxide gas. Take Avogadro's number as 6 x 1023.
[S = 32, 0 = 16 ]
A student puts his signature with graphite pencil. If the mass of carbon in the signature is 10-12 g. Calculate the number of carbon atoms in the signature.
Which of the following would weight the least?
[Atomic masses : Ag = 108, N - 14, O = 16,C = 12]
What mass of Ca will contain the same number of atoms as are present in 3.2 g of S?
Four grams of caustic soda contains ______.
One mole of any gas occupies ______ ml at S.T.P.
Cinnabar (HgS) is a prominent ore of mercury. How many grams of mercury are present in 225 g of pure HgS? Molar mass of Hg and S are 200.6 g mol–1 and 32 g mol–1 respectively.
