Question

Calculate the number of moles of O2 in 2.27 LL of O2 gas.

Calculate the volume, in liters, occupied by 1.46 moles of N2 gas.

Calculate the volume, in liters, occupied by 65.1 g of Ar gas.

Calculate the number of grams of H2 in 1610 mL of H2 gas.

Answer 1

O No of moles of Oz - Gives Volume Volume of amol Volume of one mol of Oz = 22.42 oo No of moles of 02= 2x1 = o.lolmole 22.4 Given volume of Na No of moles of N2 = Volume of Imol 1• 46 = Given volume of NZ 22.42 1:46X2 = 32.7 Litre Volun of Argona No of moles Given mass of Argen Atomic mass of Argon. - = 1062 mol 65.1 g 39.948 I mol Argon contaising 22+4 Litve of Argon o's 10 62 mol => 22.4x 1162 hitve Of Argen => 36.28 litre of Argon

Given Volume = 1610mL = 1061 Litve. No of moles of H2 = Give Volume of H2 Volume of 1 mol H2 = 1.614 = 1.614 -0.071 mol 22.4L Imol of Hz containing ag of Hz oºo 0.071 mol = 0.071x2 = 0.1429 of H₂