2.24 L of a gas at STP weighs 3.2 g. The molecular weight of the gas is:
16 g/mol
32 g/mol
64 g/mol
128 g/mol
Related Questions
Number of atoms in 558.5 g of Fe is (at . wt = 55.85)
Twice that in 60 g carbon
Half in 8 gr of He
Upon heating, 15.0 g of impure zinc carbonate decomposes completely to produce zinc oxide and carbon dioxide. If 5.6 g of zinc oxide is formed, calculate the percentage purity of the zinc carbonate sample. (Atomic weight: )
57.6
65.4
72.8
81.4
In which case is the number of molecules of water maximum ?
Number of moles of produced from 1 mole of NaOH
mol
1 mol
2 mol
5 mol
Which of the following has the maximum number of electrons
O⁻²
Na⁺
F⁻
All the given species have same number of electrons
Which of the following contains the largest number of atoms?
1 g of
1 g of
1 g of
1 g of
Arrange the following in increasing order of the number of atoms present:
(i) 2 g of He
(ii) 4 g of
(iii) 8 g of
(i) < (ii) < (iii)
(i) < (iii) < (ii)
(ii) < (i) < (iii)
(iii) < (ii) < (i)
The mass of 2.5 g.atom of oxygen is
40 g
4 g
0.4
400
0.5 moles of water contains how many molecules?
6.022 x 10²³ molecules
1.204 x 10²⁴ molecules
3.011 x 10²³ molecules
1.505 x 10²³ molecules
A mixture of and gases contains 0.44 g of and 0.56 g of . The total number of moles of gases in the mixture is:
0.01 moles
0.02 moles
0.03 moles
0.04 moles
