Chemistry

Chemistry, 16.07.2019 16:40, gatorr2010

Calculate the poh in an aqueous solution with a ph of 7.85 at 25°c

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Chemistry, 30.08.2019 22:30, kaffolter25

Find the answer for the given aqueous solution and the ionic solution - a. an aqueous solution has a normal freezing point of -5.0â°c. what is the normal boiling point of this solution? for water k b = 0.51â°c/m and k f = 1.86â°c/m. b. 0.142 m ionic solution has an osmotic pressure of 12.0 atm at 16 â°c. calculate the van't hoff factor (i) for this solution.

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Chemistry, 28.09.2019 01:20, needhelpwithHW10

For water, ebulioscopic constant is ke = 0.52 k dmmol 1 and cryoscopic constant kc = 1.86 k dm' moll, respectively. the 0.710 g sample of na2so4 (mr =142.0) was dissolved in water, so that 250 cm of the aqueous solution was prepared. disregarding the osmotic coefficient, calculate a)-c): a) boiling temperature of the prepared solution at normal pressure. a) 100.03°c; b) freezing temperature of the solution. b)-0.112 °c c) osmotic pressure of the solution (p) at 0°c and 25°c.; p=136 kpa (0°c) and 149 kpa (25°c); d) aqueous solution of kcl with concentration 0.5 mol dm freezes at -1.66°c. calculate the osmotic coefficient (o) of this solution. d) = 0.892

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