27^(@)C এবং 3 atm-এ 0.30 গ্রাম গ্যাস 82.0 mL এর আয়তন দখল করতে পাওয়া গেছে। চাপ। অণু...

At 27^(@)C and 3.0 atm pressure, the density of propene gas is :

A balloon contains 500m^(3) of He at 27^(@)C and 1 atm pressure. Then , the volume of He at -3^(@)C and 0.5 atm pressure will be

A balloon is filled at 27^(@)C and 1 atm pressure by 500 m^(3) He. At- 3^(@)C and 0.5 atm pressures, the volume of He-gas contained in balloon will be

An equeous solution of Na_(2)SO_(4) was electrolysed for 10 min. 82 ml of a gas was produced at anode and collected over water at 27^(@)C at a total pressure of 580 torr. Determine the current that was used in amp. Given: Vapour pressure of H_(2)O at 27^(@)C = 10 torr R = 0.082 atm L//mol-K Write your answer exclusing decimal places.

A sample of magnisium metal containing some MgO as impurity was dissolved in 125 " mL of " 0.1 N H_2SO_4 . The volume of H_2 evolved at 27.3^@C and 1 atm was 120.1 mL. The resulting solution was found to be 0.02 N with respect to H_2SO_4 . Calculate (i) the weight of sample dissolved and (ii) the percentage by weight of Mg in the sample. Neglect any change in the volume of the solution (atomic weight of Mg=24.3 ).

1 L of air weighs 1.293 g at 0^(@)C and 1 atm pressure. At becomes 30 dm^(3) . To what temperature the gas must be raised to accomplish the change ?