Related InterviewSolutions

• `25.0` litre of natural gas measured at `25^(@)C` and `740 mm` of `Hg` is bubbled through `Pb_((aq))^(2+)` to give `0.535 g` of solid residue. If natural gas contains `H_(2)S`, the only component responsible for the formation of solid residue, calculate the volume `%` of `H_(2)S`, in natural gas.
• Choose the correct statement `(S)`:A. The no. of atoms present in a molecule of gas represented its atomicityB. One mole of electron weigh `0.55 mg`C. The extent of both inter and intramolecular `H`-bonding depends on the temperatureD. None of these
• The formula weight of an acid is `82.0.100 cm^(3)` of a solution of this acid containing `39.0 g` of the acid per litre were completely neutralised by `95.0 cm^(3)` of aqueous `NaOH` containing `40.0 g` of `NaOH` per litre. What is the basicity of the acid?
• A mixture containing one mole of `BaF_(2)` and two mole of `H_(2)SO_(4)` will be neutralised by:A. 1 mole `KOH`B. 4 mole `KOH`C. 2 mole `KOH`D. 2 mole `Ca(OH)_(2)`
• A sample of `H_(2)SO_(4)` `("density" 1.787 g mL^(-1))` is labelleed as `80%` by weight. What is molarity of acid? What volume of acid has to be used to make `1"litre of" 0.2MH_(2)SO_(4)`?
• The normality of `0.3M` phosphorous acid `H_(3)PO_(3)` is:A. `0.1`B. `0.9`C. `0.3`D. `0.6`
• For the reaction, `N_(2)O_(5(g))hArr2NO_(2(g))+0.50_(2(g))`, Calculate the mole fraction of `N_(2)O_(5(g))` decomposed at a constant volume and temperature, if the initial pressure is `600 mm Hg` and the pressure at any time is `960 mm Hg`. Assume ideal gas behaviour.
• The density of `1 M` solution of `NaCl` is `1.0585 g mL^(-1)`. The molality of the solution isA. `1.0585`B. `1.0`C. `0.10`D. `0.0585`
• The percentage of sodium in a breakfast careal labelled as `110 mg` of sodium per `100 g` of cereal is:A. `11%`B. `0.110%`C. `0.110%`D. `110%`
• The equivalent weight of iron in `Fe_(2)O` would be:A. `18.6`B. `26.66`C. `56`D. `112`