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When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is
A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent and
Reaction due to ethernal oxygen (a) The boiling point of peroxide is higher as compared to that of ether. It is not present as remains in the distillation of ether and may reas
Q. Show the Occurrence of Metals? Earth's crust and sea are the two main sources of metals. In the earth's crust metals occur both in the combined state in the form of minerals
Chemical nature
Close to 12.2 billion metric tons of ethylene glycol (EG) were produced in 2000, which ranked it the twenty-sixth most produced chemical in the nation that year on a total mass bas
The rate constant for a reaction of Zero order in A is 0.0030 mol L¯¹ s¯¹. How long will it take for the initial concentration of A to fall from 0.10 M to 0.075 M?
One mole of gas A decomposed exothermically into one mole of gas B and one mole of gas C with Kp = 1.8 x 10-5 at 300 K. If the initial pressure of each gas was 0.150 atm, what were
In a Bohr's model of atom when an electron jumps from n= 1 to n= 3 , how much energy will be emitted or absorbed: (1) 2.15 x10 -11 erg (2) 0.19
Q. Evaluate the gold number of A? The coagulation of 100 mL of colloidal sol. is completely prevented by adding 0.25g of a protective colloid 'A' to it before adding 1 mL of Na
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