HNO3(aq) + KOH
(aq)
→ H2O (1) + KNO3 (99) + 55.31 kJ
when 400.0 mL of 0.0500 mol/L. HNO3(aq) is added to an unknown volume of 0.0500 mol/L
KOH(aq), the temperature increases from 18,67°C to 19.00°C. Assuming that both solutions
have a specific heat capacity of 4.19 J/g °C and a density of 1.000 g/mL, what volume of
KOH(aq) was used?

A0.10 m aqueous solution of sodium sulfate is a better conductor of electricity than a 0.10 m aqueous solution of sodium chloride. which of the following best explains this observation? (a) sodium sulfate is more soluble in water than sodium chloride. (b) sodium sulfate has a higher molar mass than sodium chloride. (c) to prepare a given volume of 0.10 m solution, the mass of sodium sulfate needed is more than twice the mass of sodium chloride needed. (d) more moles of ions are present in a given volume of 0.10 m sodium sulfate than in the same volume of 0.10 m sodium chloride. (e) the degree of dissociation of sodium sulfate in solution is significantly greater than that of sodium chloride.