Compute the change in temperature
Compute the change in temperature when 1.8 g of sodium chloride is dissolved in 300.0 mL of water initially at 20C. The heat capacity of water is 4.184 J/mL/K. Neglect the heat capacity of the NaCl.
Species fH (kJ/mol)
NaCl(aq) -407.3
NaCl(s) -411.2
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A solution initially 0.100 M in HOCl and 0.300 M in NaOCl. What is the pH in 0.030 mol of solid NaOH is added to 1.00 L of this solution? Assume no volume channge.
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What is the freezing point of a solution of sodium chloride that contains 97.0 g NaCl dissolved in 545 g of water? Use molar masses with at least as many significant figures as the data given.
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