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30 g of urea (M = 60 g "mol"^(-1)) is dissolved in 846 g of water. Calculate the vapour pressureof water for this solution if vapour pressure of pure water at 298 K is 23.8 mm Hg.

3.0 g of non-volatile solute when dissolved in 1 litre water, shows s osmotic pressure of 2 atmosphere at 300 K. Calculate the molecular mass of th solute. (R=0.082 L K^(-1)mol^(-1)).

3.0 g of H_(2) react with 29.0 g of O_(2) to form H_(2)O. (i) which is the limiting reagent? (ii) Calculate the maximum amount of H_(2)O that can be formed. (iii) Calculate the amount of the reactant left unreacted. Molecular mass of H_(2)=2.016.

30 g of CH_(3)MgBr reacts with excess of CH_(3)CH_(2)CH_(2)OH forming xg of a gas. What isthe value of x?

30 g. of acetic acid is dissolved in 1 dm^(3) of a solvent. The molality of the solution will be (Givent, density of solvent =1.25 g cm^(-3)

30 cc of (M)/(3) HCl, 20 cc of (M)/(2) HNO_(3) and 40 cc of (M)/(4) NaOH solutions are mixed and the volumes was made up to 1dm^(3). The pH of the resulting solution is

30 cc of M/3 HCl, 20 cc of M/2 HNO_(3) and 40 cc of M/4 NaOH solutions are mixed and the volume wasmade up of 1 dm^(3) . The pH of the resulting solution is

3^(0)aminescontain

3 xx 10^(3) kg of acetic acid is added to 500 cm^(3) of water. If 25% acetic acid is dissociated in water, what will be DeltaT_(f)K_(f)=1.86 K//m, d of H_(2)O = 1g cm^(-3).

3 Which is the common oxidation state of the first transition series of elements

3-Phenylpropene on reaction with HBr gives (as a major produt)

3-Phenylpropene on reaction with HBr gives (as a major product)

When 3-phenylpropene reacts with HBr in the presence of peroxide, the major product formed is

3- pentanol

3-pentanol is :

3-ntrio 2-methyl butane -2-ol is the condensation products of

Write chemical reactions of affect the 3-Nitrobromobenzene to 3-nitrobenzoic acid transformations.

3-Nitrobromobenzene to 3-nitrobenzoic acid .

3 moles of ethanol react with one mole of phosphorus tribromide to form 3 moles of bromaethane and one mole of X. Which of the following is X?

3 moles of an ideal gas is compressed from 30 dm^3 to20 dm^3 against a constant pressure of 3.039 xx 10^5Nm^-2. The work done in calories is ___________ . (1 J = 0.239 cal)

3 moles of A and 4 moles of B are mixed together and allowed to come into equilibrium according to the following reaction :A(g)+4B(g)hArr 2C(g)+3D(g)When equilibrium is reached, there is 1 mole of C. The equilibrium extent of the reaction is

3 mole of A and 4 moles of B are mixed together and allowed to come into equilibrium according to the following reaction 3A_((g))+4B_((g))hArr2C_((g))+3D_((g))

3 mof of mixture of NaHCO_(3) and Na_(2)CO_(3) is strongly heated at 200°C, when 1 mol of CO2 is obtained. What is the weight of residue? What is molar percentage of NaHCO_(3) and Na_(2)CO_(3) in the mixture?

3-Methylpent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is

3-methylpentan-3-ol will be prepared from

3-Methylpent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible steroisomers for the product is:

3-menthyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possiblestereoisomersfor the product is

3-methylbut-1-eneon reaction with HBr gives (as major product) ?

3 - methyl cyclohexene on oxidation will give

3-Methyl butane-2-ol on heating with HI gives

3-methyl but-1-ene on HBO reaction gives

3-methyl-2-butanol

3-methyl-2 butanol on treatment with HClgives predominantly

3-methyl-2-butanol on treatment with HCI gives predominantly :

3-Hydroxy butanal is formed when (X) reacts with (Y) in dilute (Z) solution. What are(X),(Y) and(Z)?

3- hydroxy 2- methyl pentanal is formed when Xreact with Y in dilute Z solution. What are X,Y,Z

3 gram of non-volatile solute in a 1000 cm^(3) of water shows an osmotic pressure of 2 bar at 300K. Calculate the molar mass of the solute (R=0.0853" L bar "K^(-1)mol^(-1)).

3 gram of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the fitrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is :

3 gm of copper metal in cathode is deposited on electrode when 3 ampere current is pass for 2 hours through aqueous solution of CuSO_(4). Then what is the efficiency of current ? (Atomic weight of Cu=63.5 gm/mol)

3g of urea is dissolved in 45g of H_(2)O. The relative lowering in vapour pressure is

3 g of facetic acid is added to 250 mLof 0.1 HCl and the solutions made up to 500mL.To 20 mLof this solutions 5mLof 5M NaOHis added . The pH of the solutions is b/wn& n+ 1value of 'n' is :[Given : pKa of acetic acid = 4.75 molar mass of acetic acid =60 g/mol ] Neglect any changes in volumes.

3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042N. The amount of acetic acid absorbed (per gram of charcoal) is

3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was fitered and the strength of the filtrate was found to be 0.042N. The amount of acetic acid adsorbed (per gram of charcoal) is:

3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042N. The amont of acetic acid absorbed (pr gram of charcoal) is

3 g of activated charcoal was added to 50 ml . Of acetic acid solution (0.06 N ) in a flask . After an hour it was filtrate was found to be 0.042 N . The amount of acetic acid adsorbed ( per gram of charcoal )is

3 g of a hydrocarbon on combustion in excess of oxygen produces 8.8g of CO_(2) and 5.4 g of H_(2)O. The data illustrates the law of: