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MISSED THIS? Watch (WE 9.8: Read Section 9.7 You can click on the Review link to access the section in your eText Zinc metal reacts with hydrochloric acid according to the following balanced equation Zn(s) + 2HCl(aq) ZnCl₂(aq) + H₂(g) When 0.111 g of Zn(s) is combined with enough HCI to make 50.6 ml. of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 22.1 C1024.4 C. Part A Find AH for this reaction as written. (Use 1.00 g/ml. for the density of the solution and 4.18 J/(g "C) as the specific heat capacity) Express your answer in kilojoules per mole to two significant figures. View Available Hint(s) [90] ΑΣΦΑ 2 kl/mol AH Submit
The addition of hydrobromic acid to a silver nitrate solution precipitates silver bromide according to the reaction: AgNO₁ (aq) + HBr(aq) → AgBr(s) +HNO₂ (aq) When 50.0 mL of 4.00x102 M AgNO, is combined with 50.0 mL of 4.00x102 M HBr in a coffee-cup calorimeter, the temperature changes from 25.60 °C to 26.42 °C. Part A Calculate Al for the reaction as written. Use 1.00 g/mL as the density of the solution and C, -4.18 J/(g°C) as the specific heat capacity of the solution. Express the energy to two significant figures and include the appropriate units. A AH Value Units