Question

Reading Question (Refer to Introduction section before answering the question): A student performs a coffee cup calorimetry lab similar to the one you will be performing, An acid solution is mixed with a basic solution and the temperature change is recorded. The student calculates the following: quolution(surroundings) = 4011) What is the value of race ? Using the same procedure that will be performed to determine the enthalpy of tion, determine the enthalpy of reaction when magnesium metal is added to a hydrochloric acid solution. Consider the following information: A coffee cup calorimeter contains 100.0 mL of a 1.00 M HCl solution at 22.4°C. When 0.243 g of Mg metal is added to the acid, the ensuing reaction Mg(s) + 2 HCl(aq) → MgCl2(aq) + H2(g) causes the temperature of the solution to increase to 33.4°C. When answering the question below, assume the density of the solution is 1.0 g/mL and that its specific heat is 4.18 J/(g.°C). 1. Calculate the change in heat, in J. of the aqueous solution as it warms from 22.4°C to 33.4°C. Label this quantity solution- 2. Given your response to question 1, what would the value of Greaction be? 3. Which of the two reactants, Mg(s) or HCl(aq) is the limiting reactant? Provide calculations to support your answer. Lab #10: Calorimetry

Answer 1

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