8. Thermochemistry

Given 313.5 g of hot tea at 72.5 °C, what mass of ice at 0 °C must be added to obtain iced tea at 12.5 °C? The specific heat of the tea is 4.18 J/(g·°C), and ΔHfusion for ice is +6.01 kJ/mol.

547 J of thermal energy is added to a 200.0 g sample of iron that is initially at 68.0 °C. If the specific heat capacity of iron is 0.449 J/g°C, what will be the final temperature in °C?

Which of the following exchanges of energy has a positive sign for heat (relative to the system)?

When 100.0 mL of 0.200 M KOH is mixed with 50.0 mL of 0.400 M HNO3 in a calorimeter, the temperature increases from 22.50 °C to 24.32 °C. What type of reaction is occurring?

When 100.0 mL of 0.200 M CsOH is mixed with 50.0 mL of 0.400 M HCl in a calorimeter, the temperature increases from 22.50 °C to 24.28 °C. What type of reaction is occurring?

How much heat is released when one mole of steam (18.0 g) at 100.0 °C is converted to water at 25.0 °C?