The heat of vaporization ΔHv of benzene C6H6 is 44.3 kJ/mol.
Calculate the change in entropy ΔS when 229. g of benzene boils at 80.1 °C. Be sure your answer contains a unit symbol. Round your answer to 3 significant digits.

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the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l