Recent questions tagged chemistry

If the amount of heat supplied at constant volume is 40kj at 45C temperatur

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Calculate the maximum wavelength in angstrom of a photon that can initiate

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Moles of electrons present in 9g of Aluminium is (Atomic mass of Al=27 u)

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Number of molecules in 51g of ammonia is

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A emission spectra are observed by a consequence of transition of electron

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1. Calculate the change in entropy when 200 g of H2O at 100oC is mixed with

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Define reverse osmosis and mention it's application

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calculate standard free energy change for CO+1/2O2=CO2 standard entropy of

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A solution is prepared by dissolving 43g of naphthalene in 117g of benzene

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Calculate the emf for the following cell. Pt; H2(0.50atm)

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0.75 mol of ethylene bromide were mixed with 0.25 mol of proplene bromide a

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What is the mass of hydrogen gas (H2) formed when 25 grams of aluminum reac

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4. Which of the following will decrease the number of effective collisions

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A mixture of o3 and o2 containing 20% by volume of ozone diffused through a

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Calculate the concentration of a solution formed by combining 25 milliliter

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Which compound has the greatest solubility in water? CH 3(CH 2) 4COCH 2CH 3

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a 12 gm of a solid solute is dissolvod in 90 gm pure water Vapour pressure

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The activity of water at 11 bar and 298 k is

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A water sample is not alkaline to phenolphthalein but 100 ml of ut reaches

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Calculate the new volume of oxygen

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In benzene sulfonic acid the sulphonic group is attached with benzene ring

asked Mar 4 by pranavkumar8872

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Which of the following is NOT true for sulphuric acid solution?

asked Mar 4 by pranavkumar8872

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Sterilization of water can be done by using ___. * Oxygen Hydrogen Peroxide

asked Feb 23 by swanandjoshi126

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Carbon has an electronegativity of 2.55, while chlorine has an electronegat

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inciples of Organic Chemistr MCQ's Which of the following wll show geometri

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What is the mass of 0.2 moles of lead nitrate?

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An alpha particle in a one-dimensional box of width 2 x 10-10 m undergoes a

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What is weight of NaOH present in 250 cc of a 2M Solution ?

asked Feb 2 by meena.clay6

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A gas in a 30.0 ml container is at 1.05 ATM. It is compressed to a volume o

asked Jan 31 by abdullahjamil2k3

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tion metals". even though the metals Transition metal compounds are coloure

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5 g of hydrogen diffused through a porous membrane in 30 Min .find the time

asked Dec 25, 2021 by bhattarailatika

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