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1)Calculate pH of solution containing 0.100 M CH3COOH and 0.050 M CH3COONa.
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a0.5kg piece of metal (c = 600/kgk) at 300 degreee celcius is dumped into a large pool of water at 20 degree celsius. assuming the change in temperature of water to be negligible, caculate the overall change in enthropy for the4 system
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Q-Draw a Lewis structures of PCl4+ and PCl6- .
predict the shapes of these ions using VSPER thoery and hybridization states of phosphorus atom in these two ions .
Q2-Draw a rough sketch of total molar polarization verusus 1/temperture curve for CO2 and SnCl2.
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why does bond angle decreases when surrounding atom is more electronegative than the central atom
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what is hardness of water ?explain its various units and their relationships?
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An electron in the n = 6 level of an H atom emits a photon of wavelength 2626 nm. To what energy level does it move?
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If the mass of one litre of a gas at 273k and pressure 760mm/ Hg equals 5.236gm, calculate the mass of one mole of that gas.
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sugar dissolves less readily in water as compared to nacl . why?
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A ferryboat traveling at a speed of 30 km/h attempts to cross a river with a current of 5 km/h. What is the boat's speed relative to the shore?
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dissolution of nacl in water is a physical change, not a chemical change. why?
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