Related Questions
The number of moles in 11.2 L at STP of oxygen
1 mol
0.5 mol
2 mol
0.2 mol
The number of molecules present in 1 mL of gas or vapour at STP is:
Called Loschmidt’s number
Equal to
Both (1) and (2)
None of the above
7.5 gr of a gas occupy 5.8 L of volume at STP, the gas is
CO2
O2
Air (approximately)
H2
The number of molecules present in 1 mL of gas or vapour at STP is:
6.02 x 10²³
2.68 x 10¹⁹
1.68 x 10²²
22.4 x 10²⁰
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
