1) 66.667 ml of 3.000 M H2SO4 (aq) solution was neutralized by the stoichiometric amount of 4.000 M Al(OH)3 solution in a coffee cup calorimeter. The initial temperature of the solutions was 22.3 ºC and after mixing the temperature raised to 24.7 ºC. If the heat capacity of coffee cup is 1.10 J/g ºC, calculate the Delta H reaction in J/mol Al2(SO4)3.
1) 66.667 ml of 3.000 M H2SO4 (aq) solution was neutralized by the stoichiometric amount of...
When 60.0 mL of a 0.400 M solution of HNO3 (aq) is combined with 60.0 mL of a 0.400 M solution of NaOH(aq) in a coffee-cup calorimeter, the final temperature of the solution is measured to be 26.6 ˚C. The initial temperature of the solutions is 24.0 ˚C. Calculate qrxn in joules, assuming the specific heat capacity of the final solution is 3.90 J·g–1·˚C–1, the density of the final solution is 1.04 g/mL, and the calorimeter constant is 45 J/oC....
When one mol of KOH is neutralized by sulfuric acid, q = -56 kJ. (This is called the heat of neutralization.) At 23.7°C, 25.0 mL of 0.475 M H2SO4 is neutralized by 0.613 M KOH in a coffee- cup calorimeter. Assume that the specific heat of all solutions is 4.18 J/g · °C, that the density of all solutions is 1.00 g/mL, and that volumes are additive. (a) How many mL of KOH is required to neutralize H2SO4? (b) What...
Suppose you mix 200.0 mL of 0.200 M RbOH(aq) with 100.0 mL of 0.400 M HBr (aq) in a coffee cup calorimeter. The initial temperature of each of the two solutions was 24.40°C and after mixing the temperature of the solution was 26.18°C. Assume the specific heat capacity of the solution is the same as water, 4.18J/(g- C) and the density of the solution is 1.0 g/mL. What is AH° (in kJ) for the reaction shown below? (Enter your answer...
QUESTION 1 The weak acid, HX, is neutralized by sodium hydroxide as shown below: HX(aq) + NaOH(aq) → NaCN(aq) + H20(1). Suppose you carried out this reaction in a coffee cup calorimeter using 50.0 mL of 0.500 M HX and 50.0 mL of 0.500 M NaOH. If the temperature of the calorimeter increases by 2.58 °C, what is the enthalpy of this neutralization reaction (in kJ/mol)? Assume the density of the solution is 1.00g/mL and that the specific heat is...
QUESTION 1 The weak acid, HX, is neutralized by sodium hydroxide as shown below HX(aq)+ NaOH(aq) NaCN(aq)+ H20(1) Suppose you carried out this reaction in a coffee cup calorimeter using 50.0 mL of 0.500 M HX and 50.0 mL of 0.500 M NaOH If the temperature of the calorimeter increases by 2.02 C, what is the enthalpy of this neutralization reaction (in kJ/mol)? Assume the density of the solution is 1.00g/mL and that the specific heat is 4.184 J/g "C...
In a calorimetry experiment, the following reaction was studied: 2NaOH(aq) + H2SO4(aq) Na2SO4(aq) + 2H2O(l) 100.0 mL portions of 1.00 M NaOH and H2SO4, at 24°C, were mixed. The maximum temperature achieved was 30.6°C. Neglecting the heat capacity of the coffee–cup calorimeter, and assuming that the products has a density of 1.0 g/mL and a heat capacity of 4.184 Jg-1K–1, calculate a. the heat released in the reaction, in J. b. Hrxn, in kJ/mol of Na2SO4 produced
A 71.0 mL sample of 1.0 M NaOH is mixed with 40.0 mL of 1.0 M H2SO4 in a large Styrofoam coffee cup; the cup is fitted with a lid through which passes a calibrated thermometer. The temperature of each solution before mixing is 21.3°C. After adding the NaOH solution to the coffee cup, the mixed solutions are stirred until reaction is complete. Assume that the density of the mixed solutions is 1.0 g/mL, that the specific heat of the...
A 65.0 mL sample of 1.0 M NaOH is mixed with 48.0 mL of 1.0 M H2SO4 in a large Styrofoam coffee cup; the cup is fitted with a lid through which passes a calibrated thermometer. The temperature of each solution before mixing is 24.4°C. After adding the NaOH solution to the coffee cup, the mixed solutions are stirred until reaction is complete. Assume that the density of the mixed solutions is 1.0 g/mL, that the specific heat of the...
A 68.0 mL sample of 1.0 M NaOH is mixed with 49.0 mL of 1.0 M H2SO4 in a large Styrofoam coffee cup; the cup is fitted with a lid through which passes a calibrated thermometer. The temperature of each solution before mixing is 21.2°C. After adding the NaOH solution to the coffee cup, the mixed solutions are stirred until reaction is complete. Assume that the density of the mixed solutions is 1.0 g/mL, that the specific heat of the...
Ferminow.com QUESTION 1 The weak acid, HX, is neutralized by sodium hydroxide as shown below: HX(aq) + NaOH(aq) NaCN(aq) + H2O(l). Suppose you carried out this reaction in a coffee cup calorimeter using 50.0 mL of 0.500 M HX and 50,0 mL of 0.500 M NaOH. If the temperature of the calorimeter increases by 1.91 °C, what is the enthalpy of this neutralization reaction (in kJ/mol? Assume the density of the solution is 1.00g/mL and that the specific heat is...