Unanswered Physical Chemistry Questions

what is EMF? HOW IT LINKS WITH CELL POTENIAL AND ELECTRODE POTENTIAL? WE USE NERNEST EQUATION TO FIND WHAT ...

Good place for all chem lovers[1][1] http://www.shodor.org/unchem/basic/index.html hope u like it...[1] ...

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q1)the ka1=5.6x10-2 ka2=6.2x 10-5 ksp=3.5x10-11 for oxalic acid,the solubility of this acid in a aqueous solution of ph=5.0 is a)9.9x10-3 b)10-2 c)10-4 d)9.9x10-5 ...

2.0 g of phosphorus and 2.0 g of oxtgen are allowed to react leaving no residue of either of the reactants. Calculate the amount of P4O6 & P4O10 FORMED DURING THE COURSE OF REACTIONS. (Ans. 1.996 g P4O6 & 2.002 g P4O10) ...

a mixture of SO2 and O2 at 1atm in the mole ratio of 2:1 is passed thru a catalyst at 1170'C at a sufficient rate for the attainment of equilibrium the gas is suddenly chilled and analysed is found to contain 87% of SO3 by vo ...

the molar volume of liquid benzene density = 0.877 g/ml increases by a factor of 2750 as it vapourises at 20°C and that of liquid toulene density = 0.867 g/ml increases by a factor of 7720 at 20°C . A solution of benzene an ...

*Image* can somebody explain the above curves ....and the concept of azeotropes .......to me .....this image has been copied from wikipedia ... so as you can judge i have read the material up there ....but still i am confused ...

why higher the binding energy per nucleon higher stability ...

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25 ml of a gaseous hydrocarbon having the same rate of diffusion as nitrogen,and methane effuse through a hole in 173 min,while the same volume of nitrogen effuses in 200 min under the same conditions calculate the contractio ...

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1L of gas at 300atm and 473 K is compressed to a pressure of 60 atm and 273K.The compressibility factors found to be 1.072 and 1.375 at initial and final states.Calculate final volume ...

Determine volume of air containing 20% oxygen by volume,that would have to be inhaled at 20°C and 1 atm to consume 1Kg of fat C57H110O6 assuming that only 70% by volume of the oxygen present in air is used up in combustion ...

One mole of monoatomic vanderwaal gas when confined in 5L flask at 300K reads 4.85 atm on a barometer scale.Determine values of vanderwaal constant .Also determine diameter of gaseous atoms ...

6g of He having average velocity of 4*102 m/s is mixed with 12g of Ne20 having same average velocity.What is average Kinetic energy per mole of mixture? ...

A gaseous mixture consists of methane,oxygen,and sulfur dioxide in weight ratio 4:2:1.The mixture was then allowed to effuse through a small hole at a definite temperature.What will be mole composition of mixture leaving hole ...

The molecular weight of iodine vapor is 241 at 1atm and 800°C and 212 at same pressure but at 1027°C.Calculate degree of dissociation and coefficient i for different pressures ...

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1) CALCULATE pH of a 0.01 M SOLUTION at 25 ° C WHICH RESULTS IN THE FORMATION OF 0.01 % OH - ION IN THE REACTION OF CH3COO- WITH H2O. CH3COO- + H2O → CH3COOH + OH - 2) FOR WHICH OF THE FOLLOWING SOLUTIONS MUST WE CONSIDER ...

1. if the ratio of the coordination number of P to Q is Y:Z then the formula of the solid containing atoms of P and Q is...........??? 2. the lattice energy of solid NaCl is 180kcal/mol. the dissolution of solid in water in t ...

A0.1M solution of NaCl is found to be isotonic with 1% urea solution.Find (1)van't Hoff's factor and (2)degree of ionization of NaCl. ...

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can anyone tell me how to find out if a molecular orbital has nodal plane or not pls ...

1 gm of a mixture containing equal no. of moles of carbonates of two alkali metals, required 44.40 ml of 0.5 N HCl for complete reaction. The atomic weight of one metal is 7, find the atomic weight of the other. Also calculat ...

A sample of 0.15 of the compound [Pt(NH3)xBry]+z . z Br- , ignited and heated to decomposition produced 0.0502 gm of Pt. a second 0.15 gm sample was dissolved in water and titrated rapidly with 0.01 M AgNO3 solution. 51.50 ml ...