Two solutions, initially at 24.60 Degrees Celsius are mixed in a coffee cup calorimeter. When a 100.0 mL volume of 0.100M AgNO3 solution is mixed with a 100.0 mL sample of 0.200 M NaCl solution, the temperature in the calorimeter roses to 25.30 degrees Celsius. Determine the  triangle H  degree rxn for the reaction as written below. Assume that the density and heat capacity of the solutions is the same as that of water. The specific heat Capacity of water = 4.18 j/g degrees Celsius NaCl (aq) + AgNO3(aq) —> AgCl (s) + NaNO3  triangle H degree rxn ?

Let's use our knowledge of constant volume (bomb) calorimetry to determine the heat energy in a given food sample, say a hamburger. A typical hamburger has a serving size of 105 g and consists of approximately 20% protein (21.0 g), 33% fat (34.7 g), and 47% carbohydrate (49.3 g). Assume that the heat capacity of the bomb calorimeter is 8.39 kJ K-¹, and the increase in water temperature was 13.2 K. Q5.38 Homework Unanswered How many Calories (Cal) are in the hamburger described above? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Unanswered • 4 attempts left Submit

A quantity of 2.00×102 mL of 0.786 M HCl is mixed with 2.00×102 mL of 0.393 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.76°C. For the process below, the heat of neutralization is −56.2 kJ/mol. What is the final temperature of the mixed solutions?   H+(aq) + OH−(aq)→H2O(l)   _____°C

In a coffee cup calorimeter 2.5 grams of NaOH is added 50.00 gram of water.  The water was at 22.0oC.  The solution is stirred and mixed and the temperature of the resulting solution increases to 55.0oC.  Calculate the Q, Hrxn and the ΔHrxn kJ per mole of NaOH.  The specific heat of the solution is 4.18J/goC.

Calcium acetate, Ca(CH3COO)2 has a molar mass of 158.17 g/mol. In a constant pressure calorimeter, 44.2 g of Ca(CH3COO)2 is dissolved in 861g of water at 25.00 °C. The heat produced by the solution was determined to be 15kJ. What is the final temperature of the solution? q= - msAT SH20 = 4.184 29.0 °C O 18.4 °C O 64.6 °C O 33.8 °C O 3.96 °C O 21.0 °C

When 34.5 mL of 0.545 M H2SO4 is added to 34.5 mL of 1.09 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the individual volumes and that the density and specific heat capacity of the solution are the same as for pure water: d = 1.00 g/mL and c = 4.184 J/g×K.)   H per mole of H2SO4 reacted: H per mole of KOH reacted:

Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter. When a 200.0 mL volume of 0.100 M ÁGNO 3 solution is mixed with a 100.0 mL sample of 0.200 M NaCl solution, the temperature in the calorimeter rises to 29.30°C. Determine the AH° rxn . Assume that the density and heat capacity of the solutions is the same as that of water. NaCI( aq) + AGNO 3( aq) AH° rxn = ? AgCl( s) + NaNO 3( aq) -362 J -7526 kJ -374 kJ -758 kJ -5894 J

When 25 mL of chemical A and 25 mL of chemical B were mixed in a calorimeter the following reaction occurred: A + 2B  2C The solution had a density of 1.07 g/mL and a specific heat capacity of 3.8.  If the concentration of reactant A was 0.98 M, how many moles of A were present?

A 3.450 g of propane (molar mass = 44.11 g/mol) was placed in a bomb calorimeter with excess oxygen and ignited. The initial temperature of the calorimeter was 24.000 degrees celsius and its total heat capacity was 76.65 kJ * C^-1. The reaction raised the temperature of the calorimeter to 28.965 degrees celsius.  a. What is the heat exchangged by the reaction in kilojoules, qrxn?  b. Calculate the deltaE rxn for the combustion of propane in kilojoules per mole c. Work in this reaction is done on the system, done on the surroundings, or equal to zero? Why?

A 25.0 mL portion of dilute HCl (aq) is combined with a 25.0 mL portion of dilute NaOH in a coffee-cup calorimeter. Both solutions are initially at a temperature of 23.3 ºC. The reaction produces enough heat to raise the final temperature of the 50.0 mL of liquid in the calorimeter to 25.3 ºC . What is qrxn in J? Assume the density of the reaction mixture is 1.0 g/mL and the specific heat of the solution is 4.184 J/g· ºC