1. Science
  2. Chemistry
  3. 1 when 106 g of water at a temperature of...

Question: 1 when 106 g of water at a temperature of...

Question details

1.

When 106 g of water at a temperature of 23.5 °C is mixed with 63.3 g of water at an unknown temperature, the final temperature of the resulting mixture is 47.9 °C. What was the initial temperature of the second sample of water? (The specific heat capacity of liquid water is 4.184 J/g ⋅ K.)

Initial temperature =  °C

2.

You add 100.0 g of water at 56.3 °C to 100.0 g of ice at 0.00 °C. Some of the ice melts and cools the water to 0.00 °C. When the ice and water mixture reaches thermal equilibrium at 0 °C, how much ice has melted? (The specific heat capacity of liquid water is 4.184 J/g ⋅ K. The enthalpy of fusion of ice at 0 °C is 333 J/g.)

Mass of ice =  g

3. The salt cesium perchlorate is soluble in water. When 4.06 g CsClO4 is dissolved in 105.00 g water, the temperature of the solution decreases from 25.00 °C to 22.70 °C. Based on this observation, calculate the dissolution enthalpy, ΔdissH, of CsClO4.

Assume that the specific heat capacity of the solution is 4.184 J g-1 °C-1 and that the energy transfer to the calorimeter is negligible.

ΔdissH =  kJ/mol

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution