Help me solve this question asap (a) Given the cell notation below at 25 C R(s)...
Hi.can you help me answer these questions.thank you so much for your help.i really need your help. 1 il. A 10 Sample Of Octane 6 C4 H ) is burned in 0 60ml Calorimeter containing 200 grams of water Q+On Initi al temperature Of 15.00°C.After the reaction the final temperature of water is 33.20°C. The heat Capacity of th Colorimeter 18 837 JQ Kl. The specific heat of water is 4.18 4 JGK Calculote the heat of combustion of action...
3. When 10 mL of 2.0 M HCl is combined with 30 mL of 0.667 M NAOH a temperature change of 6.9 °C was observed. How much heat was given off per mole of water produced? ASsume the volumes are additive and that this NaCl solution has a density of 1.02 g/mL and a specific heat of 4.00 J/g-C. 2. How much heat is needed to change 32 g of 4.A 0.865 g sample of candy is burned in a...
will you please help me with 7 and 8? 18 15 = 7. A 0.1036 g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/ °C. The calorimeter contains exactly 200 g of water, and the temperature increases by 0.913 °C. Calculate the heat given off by the burning Mg in kJ/mol. BOX OOD FS 1620 8. Calculate the heat of combustion for the following reaction from the standard enthalpies...
#4 4) Given the data in the table below. Δ1Prn for the reaction Ca(OH)2 + 2H3AsO4 → Ca(H2AsO4)2 + 2H2O is kJ. Substance AH't(k/mol) Ca(OF)2 H3As04 Ca(H2As04)2 -23460 H20 986.6 -900.4 -285.9 A)-744.9 B)-4519 C)-4219 D) -130.4 E) -76.4 5) The combustion of titanium with oxygen produces titanium dioxide: Ti (s) +02 (g) → TiO2 (s) When 0.610 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00 °C to 50.50 °C. In...
18. In a calorimetry experiment, 0.1277 g af Me ribbon was added to 200.0 mL 0. HCl at 24.12 °C. The water temperature increased to 27.10 °C. Calculate AH for reaction, as performed, and AH per mole of HCI. 19. A 2.50 g sample of sucrose (C2H220) was burned in excess oxygen in a car which contained 2.19 kg of water. The temperature of the water increased from 20. to 25.01 °C. Determine the molar heat of combustion of sucrose....
PART ONE: PART TWO: PART THREE: PART FOUR: Gaseous methane (CH4) will react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2 and gaseous water (H20). Suppose 13. g of methane is mixed with 13.8 g of oxygen. Calculate the minimum mass of methane that could be left over by the chemical reaction. Round your answer to 2 significant digits A 1.32-g sample of a compound is burned in a bomb calorimeter, producing a temperature change from 20.85 °C...
Chapter 5 and Chapter 10 Problem solving (please practice the following questions and make sure that you understand the principles behind: you can find Ar from textbook or website I. A 145 g sample of copper metal at 100.0°C is placed into 250.0 g of water at 25.0°C in a calorimeter. When the system reaches thermal equilibrium, the temperature of the water in the calorimeter is 28.8°C. Assume the calorimeter is perfectly insulated. What is the specific heat capacity of...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
< 9 of 13 Review Constants Periodic Table Part A A calorimeter contains 28.0 mL of water at 11.0 °C. When 250 g of X (a substance with a molar mass of 60.0 g/mol) is added, it dissolves via the reaction X(s) + H2O(1) X(aq) and the temperature of the solution increases to 30.0 °C. Calculate the enthalpy change, AH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that...
Calorimetry Problems: AH = m(at), Exercise #6: Enthalpy Problems 300 kg of water cools from 5 to 20 How much beat energy was released by the water? Co H2O(l) is 4.180 J/gºC. 4. How much heat energy is required to heat 45 g of sheet Fe from 24°C to 200."C?, of Fe(s) is 0.449 J/gºC. 3. A food chemist combusts 56 g of a chocolate bar in a calorimeter containing 1.5 L of water (density Ho mL). The initial temperature...