Physical Chemistry Answers

The concentration of a solution of H2O2 is 6.8%(w/V) What is the volume concentration of the solution? Please explain.

4.9 gr K2Cr2O7 is taken to prepare 0.1 litre of the solution. 10 ml of this solution is further taken to oxidise SN^+2 ion into Sn^+4 ion. the SN+4 so produced is used in 2nd reaction to prepare Fe^+3 ion, then the millimoles of Fe^+3 ion formed will be (assume all other components are in sufficient amounts)

14 g of element X combines with 16 g of oxygen. On the basis of this information, which of the following is a correct statement:-

(1) The element X could have an atomic weight of 7 and its oxide is XO
(2) The element X could have an atomic weight of 14 and its oxide is X2O
(3) The element X could have an atomic weight of 7 and its oxide is X2O
(4) The element X could have an atomic weight of 14 and its oxide is XO2

how to make 10 ml mix solution of 80% NaOH and 20% KOH

Push bike has got tyres with a 2.25’ rim diameter, 54mm tyre height and 2.5” tyre width. Calculate the amount of air in the tyres in litres and kilograms if the tyre is pressurised to 60.0psi. How does pressure affect the volume of gas?

air contains 20% by volume of oxygen . the volume of air required for the complete combustion of 1litre of methane under the same conditions is ?

How conductor property of metal depends on MO.

A mixture of Helium and Neon gases is collected over water at 28 degree Celsius and 745 mm Hg. If the partial pressure of Helium is 368 mm Hg, what is the partial pressure of Neon? Please explain.

What is a tieline? Eplain with the help of phase rule.

Ammonia and sulfuric acid react to form ammonium sulfate. (a) Write an equation for the
reaction. (b) Determine the starting mass (in g) of each reactant if 20.3 g of ammonium sulfate is
produced and 5.89 g of sulfuric acid remains unreacted.