QUESTION 24 136 ml of 0.480 M HCl solution is mixed with 136 ml of 0.240...

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Question

Answer 1

Answer #1

Total Volume of solution = 136mL+136mL= 272mL

Density = 1g/mL

Mass of Solution = Density ×Vlume

Mass of solution (m) = 1g/mL×272mL = 272g

Temperature Change, ∆T= final -initial

∆T = 23.2°C - 20°C = 3.2 °C

Heat capacity (c) = 4.184 J/g.°C

Heat released in reaction, q= mc∆T

q = 272g ×4.184J/g.°C × 3.2°C = 3641.75J

Heat realised = 3640J (nearest to actual value)

Answer 2

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