When 600 mL of 0.2 M is mixed with 400 mL of 0.1 M NaOH solution in a flask, the rise in temperature of the flask is .

(Enthalpy of neutralisation and Specific heat of water ) (Neglect heat capaci

Question

When 600 mL of 0.2 M  is mixed with 400 mL of 0.1 M NaOH solution in a flask, the rise in temperature of the flask is  .

(Enthalpy of neutralisation  and Specific heat of water ) (Neglect heat capacity of flask)

Canvas Classes · Accepted Answer

Strategy:
 Calculate the total heat evolved from the neutralization reaction (), and then use the heat capacity of the final mixture () to solve for the temperature rise.

Step 1: Calculate moles of reactants
- Moles of 
- Moles of 
Since  is the limiting reagent,  moles of water are formed.

Step 2: Calculate heat released ()
.

Step 3: Calculate temperature rise ()
Total mass of solution ()  (assuming density ).
.
Rounding to nearest integer: .

More questions from Thermodynamics