The volume of oxygen gas liberated at `27^(@)C` and `760mm Hg` pressure when `24.5g` of `KClO_(3)` is heated: (M.wt.of `KClO_(3)=122.5`)

Calculate the volume occupied by 7 g of nitrogen gas at 27^(@)C and 750 mm Hg pressure

The volume of a gas at 0^(@)C and 760 mm pressure is 22.4 c c. The no . Of molecules present in this volume is

A gas occupies 300 ml at 27^(@)C and 740 mm Hg pressure. Calculate its volume at S.T.P. ?

Calculate the volume occupied by 5.0 g of acetylene gas at 50^(@)C and 740 mm pressure.

Potassium chlorate is prepared by the electrolusis of KCl in basic medium as: Cl^(-) + 6OH^(-) rarr ClO_(3)^(-) + 3H_(2)O + 6e If only 60% of current is utilised in the reaction, the time to produce 10 g of KClO_(3) using current of 2 ampere : ( mol. wt. of KClO_(3) = 122.5 )

What volume of hydrogen and oxygen would be obtained at 27^@C and 740 mm of Hg by passing a current of 25 amperes through acidulated water for 24 hours?

A certain mass of dry gas at 27^(@)C and 760 mm pressure has density 28 . What will be its density at 7^(@)C and 740 mm ?

0.05 g of a sample of KClO_3 containing some KCl on decomposition liberated just sufficient oxygen for complete oxidation of 20 " mL of " CO. The volume of CO was measured at 27^@C and 750 mm Hg. Calculate the perentage purity of KClO_3 .

Oxygen gas generated by the decomposition of potassium chlorate is collected. The volume of oxygen collected at 24^(@)C and atmospheric pressure of 760 m m Hg is 128 mL . Calculate the mass ( in grams ) of oxygen gas obtained. The pressure of water vapour at 24^(@)C is 22.4 m m Hg .

0.05 g of a piece of metal in dilute acid gave 24.62 mL of H_(2) at 27^(@)C and 760mm pressure. The Ew of metal is