A substance with specific heat 0.2 cal/(g ⋅°C) which is initially at 70 °C comes into contact with the same amount of another specific heat substance 0.5 cal/(g ⋅°C). The final temperature when equilibrium is reached is 46 °C. Calculates the initial temperature of the second substance.

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution