Recently Active Physical Chemistry Questions

lake cayuga has a volume of water estimated to be 8.2 X 10^12 L.a power station not so far above cayuga waters produces electricity at the rate of 1.5 X 10^6 coulomb/sec at an appropiate voltage ...how long would it take to e ...

benzene and toluene form nearly ideal solutions.at 300K p°toluene=32.06mm and p°benzene=103.01mm. a liquid mixture is composed of 3 mole of toluene and 2 mole of benzene.if the presurre over mixture is reduced,at what press ...

Given: Ag(NH3)2 1Ag+2NH3, Kc=6.2*10^-8 and Ksp of AgCl=1.8*10^-10 at 298K. if ammonia is added to water solution containing excess of Agcl(s) only .Calculate the concentration of complex in 1M aqueous ammonia ...

Q. densities of diamond and graphite are 3.51 and 2.25 g/cc respectively. increase in pressure on equilibrium C(diamond) <--> C(graphite) (A) favours forward rkn (b) " back " (c) no effect (d) increases rkn rate ...

The aqueous solution with the lowest freezing point is (1) 0.01 m glucose (2) 0.01 m KCl (3) 0.01 m BaCl2 (4) 0.01 m K4[Fe(CN)6]? With explanation please.thanks ...

will Co(NH3)4Br2Cl show optical isomerism??? ...

27Al13 is a stable isotope,29Al13 is expected to disintegrate by A. alpha emission B. beta emission C. positron emission D. proton emission. ...

A one litre gas bulb contains 1.03*1023 H2 molecules. If the pressure exerted by these molecules is 760mm of Hg, what must be root average squared molecular speed?? ...

The molecules MLx is planar with 7 pairs of electrons around M in valence shell. The value of x is ... ?? Integer type.! ....This question was posted first by Subhomoy bhaiya,again repeated......Well Wats dat 7 pair of electr ...

1. Boiling of egg 2. Dissolution of sugar in water ...

Among KO2, AlO2-, BaO2 and NO2+, unpaired electron is present in a) NO2+ and BaO2 b) KO2 and AlO2- c) KO2 only d) BaO2 only ...

The ionization constant of NH4+ in water is 5.6 x 10-19at 25 C.The rate of constant of the reaction of NH4+ and OH- to form NH3 and H2O is 3 x 1010 L/mol s.Calculate the rate constant for proton transfer from water to NH3. ...

At 200 degree Celsius pcl5 dissociate as follows pcl5= pcl3 +cl2 .it was found that the equilibrium vapours are 62 times as heavy as hydrogen .The degree of dissociation of pcl5 at 200 degree Celsius is ...

Q1. The equivalent weight of HNO3 in the reaction 3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O is Q2. What will be the equivalent weight of HCl on the following reaction? K2Cr2O7+14HCl → 2KCl + 2CrCl3 + 3Cl2 + H2O ...

A mixture of H2O(v), CO2 and N2 was trapped in a glass apparatus with a volume of 0.731 ml. The pressure of total mixture was 1.74 mm of Hg at 23°C. The sample was transferred to a bulb in contact with dry ice(-75°C) so tha ...

can anyone suggest a website offering help in chemistry. i m very confused with this subject. ...

1. Mn2+ +2H2O *Image* MnO2 +4H++2e- E0= -1.23 MnO4- +4H++3e- *Image* MnO2+2H2O E0=+1.70 Select correct statement[s]: a.Mn2+ reacts with MnO4- in acid solution to form MnO2 b.Mn(MnO4)2 is stable in acid soln. c.MnO2 di ...

2.5 litres of 1M NaOH solution is mixed with 3 litres of 0.5M NaOH solution. What is the molarity of the resulting solution? ...

Molarity of a solution of sulphuric acid is 0.8M and its density is 1.06 g/cc. Find the molality and mole fraction of the solution. ...

Menthol,a flavouring agent obtained from peppermint oil,contains carbon,hydrogen and oxygen. On combustion analysis, 1g of menthol yields 1.161g of water and 2.818g of carbon dioxide. What is the empirical formula of menthol? ...

In addition to carbon monoxide and carbon dioxide, there is a third compound of carbon and oxygen called carbon suboxide. If a 2.5g sample of carbon suboxide contains 1.32g of carbon and 1.18g of oxygen, show that the law of ...

A mixture of FeO and Fe3O4 when heated in air to constant weight gains 5% in its weight .The % of FeO in the sample is? ...

a) A 2.36 g sample of dolomite containing CaC03 and MgC03 were dissolved in 700 ml_ of decinormal solution of HCI. The solution was diluted to 2.5L and 25mL of this solution required 20 mL 0.01 N NaOH solution for complete ne ...

sir, i want you to ask you why does an aqueous solution of acid conduct electicity ...

when NaCl is doped with MgCl2 the nature of the defect produced is? explain ...

The frequency of one of the spectral lines in the Paschen series is 2.34 * 1014 Hz. Find the principal quantum number which produces this radiations. (Please show your working) ...

Arrange O2-,F-,Na+ and Mg2+ in ascending order in terms of their: a)Effective nuclear charge b)Atomic size c)Ionization potential d)Electron affinity ...

At ordinary temperature and pressure,chlorine is a gas,bromine is a liquid while iodine is a solid. Is this because of their specific heat,intermolecular force among the molecules,density or stability? ...

Give the correct order of electronegativity of the central atom in the following compounds : a) CH3 - CH3(Ethane) 4) CH2 = CH2(Ethene) 5) CH ≡ CH (Ethyne) Also give your reasoning for the same. ...

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