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Physical Chemistry
solve the limiting reagent of 1.0g Zn combines with 0.75g of HCl
Physical Chemistry
Calculate the concentration of N2O5 remaining 600 seconds after the start of its decomposition at 65C when its concentration was 0.040 mole/L. The reaction and its rate law are 2 N2O5(g) ® 4 NO2(g) + O2(g) Rate = k[N2O5] with a rate constant of 5.2 x 10-3 s-1
Physical Chemistry
0.05 mole of Naoh is added to 5 litres of water , what will be the pH of resulting solution ?
1) 12
2) 7
3) 2
4) 10
1) 12
2) 7
3) 2
4) 10
Physical Chemistry
A cubic solid is made of 2 elements P and Q , Atoms of P are at corners of cube and atoms of Q are at Body centres , What is the formula of the compound and what are Coordination numbers of P and Q
Physical Chemistry
The molar conductivity is maximum for the solution of concentration
1) 0.004M
2) 0.002M
3) 0.005M
4) 0.001M
1) 0.004M
2) 0.002M
3) 0.005M
4) 0.001M
Physical Chemistry
The amount of chlorine evolved by passing 2A of current in an aq. Solution of NACL for 30 minutes is ?
1) 2.64g
2) 1.32g
3) 3.62 g
4) 4.22 g
1) 2.64g
2) 1.32g
3) 3.62 g
4) 4.22 g
Physical Chemistry
If the density of some hydrogen gass is 0.911 g/L at 214 K and 23.77 kPa, what would its density be at STP/
Physical Chemistry
Identity which of the molecule will give rotational spectrum O2, O3 , Br2, HBr, CS2, C2H5Cl and C6H5COCl
Physical Chemistry
Explain why ESR frequencies are of the
order of GHz but NMR frequencies are of the order of MHz for the same applied magnetic field?
order of GHz but NMR frequencies are of the order of MHz for the same applied magnetic field?
Physical Chemistry
Please explain why [H+] is no longer equal to [A-] when a strong base is added to a weak acid.
