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Question- What mass of sodium fluoride (MM 42.0 g/mol) must be added to 500. mL of a 0.20 M HF solution to give a buffer solution having a pH of 3.40? [pKa(HF) = 3.15]
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Benzoic acid, 1.25g , is reacted with oxygen in a constant volume calorimeter to form H2O(l) and CO2(g) at 298 K. The mass of the water in the inner bath is 1.40×103g . The temperature of the calorimeter and its contents rises 2.83K as a result of..
the equilibrium constant kc for the reaction shown below is 54.3 at 430degc.nbsph2g i2g reverse reaction arrow 2 higat
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