Calculate the difference in molecular masses for
a)`CH_(3)OH and C_(2)H_(5)OH`

Calculate the difference in molecular masses for b) C_(2)H_(5)OH and C_(3)H_(7)OH

Calculate the difference in the molecular masses for c) C_(3)H_(7)OH and C_(4)H_(9)OH

2.5gm ethanoic acid (CH_3COOH) is dissolved in 75g benzene. Calculate the molality of the solution. (molecular mass of CH_3COOH = 60u )

Calculate the molecular masses of H_2,O_2, Cl_2,CO_2, CH_4, C_2H_6,C_2H_4,NH_3,CH_3OH

Calculate the molar mass of the following substances. Ethyne, C_2H_2

At a certain temeperature, the vapur pressure of CH_3OH and C_2H_5OH solution is represented by P = 119x+135. Where x is the mole fraction of CH_3OH . What are the vapur pressure of the pure components at this temperature?

Calculate the mass percentage of aspirin (C_9H_8O_4) in acetonitrile (CH_3CN) when 6.5g of C_9H_8O_4 is dissolved in 450g of CH_3CN .