Vapour pressure over mercury
Choose the right answer from following. At 300 K, when a solute is added to a solvent its vapour pressure over the mercury reduces from 50 mm to 45 mm. The value of mole fraction of solute will be: (a)0.005 (b)0.010 (c)0.100 (d)0.900
an atom of an element is 10.1 times heavier than the mass of a carbon atom.What is its mass in amu?
Provide solution of this question. If 25 ml of 0.25 M NaCl solution is diluted with water to a volume of 500ml the new concentration of the solution is : (a) 0.167 M (b) 0.0125 M (c) 0.833 M (d) 0.0167 M
why transation metals show charaterstic colours to the flame?
Provide solution of this question. A certain aqueous solution of FeCl3 (formula mass =162) has a density of 1.1g/ml and contains 20.0% Fecl. Molar concentration of this solution is: (a) .028 (b) 0.163 (c) 1.27 (d) 1.47
what is the basicity of primary secondary and tertiary amines in chlorobenzene
37% weight of HCl and density is 1.1g/ml. find molarity of HCl
Write a short note on the formula of diesel, petrol and also CNG?
2.0gram of dolomite is heated to a constant weight of 1.0g. Calculate the total volume of CO2 produced at STP by this reation
Illustrate all the explosions produce carbon dioxide?
Describe the importance of organic chemistry?
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