While reading an article on this subject, you learn that the
dilution of sulfuric acid in water is very exothermic. You decide
to measure this in the lab using a coffee cup calorimeter.
4. What is the system and what are the surroundings?
System:
Surroundings:
System is sulphuric acid.
And surroundings include water in the coffee cup calorimeter and the calorimeter itself.
While reading an article on this subject, you learn that the dilution of sulfuric acid in...
WRITING MUST BE CLEAR!! 1. Use the following data to calculate the heat of solution for rubidium iodide in kJ/mol. 9.853 g of RbI was added to a coffee cup calorimeter containing 65.0 mL of water measured at 20.25 ℃. temperature attained after completely dissolving the Rb1 was 17.21 ℃ The lowest Specific heat of water = 4.184 J/g.C: Density of water 0.998 17 g/mL at 20.25℃ Also, is this heat of solution endothermic or exothermic? Heat of Solution Endo-...
Diluting sulfuric acid with water is highly exothermic: (Use data from the Appendix to find for diluting 1.00 mol of H2SO4(l) (d = 1.83 g/mL) to 1 L of 1.00 MH2SO4(aq) (d = 1.060 g/mL). ) Suppose you carry out the dilution in a calorimeter. The initial T is 22.8°C, and the specific heat capacity of the final solution is 3.334 J/gK. What is the final T in °C ? н,so,(1) o. H2SO4(aq) + heat ΔΗ We were unable to...
After reading the article, Ethical issues with medical errors, what did you learn that typically causes medical errors?
E AFTER COMPLETING LAB. ANSWER IN SPACE PROVIDED. Suppose the heat of neutralization had been determined using a glass beaker instead of a polystyrene coffee cup How would the measured value have been affected? The heat of combustion of octane, C,H,. can be measured in a way similar to the method youC used to measure the heat of neutralization. The bomb calorimeter is used instead of a coffee cup. The reaction is 2C,H,1)+ 25 O, (g) 16 CO, (g) +...
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...
Consider the balanced equation given in the Background. If you don't add sulfuric acid in your Procedure, you will produce very little product during the same amount of lab time. What is the most likely role of the sulfuric acid that you added in the Procedure? a. Solvent b. Catalyst c. Reactant d. Product
Some sulfuric acid is spilled on a lab bench. You can neutralize the acid by sprinkling sodium hydrogen carbonate on it and then mopping up the resultant solution. The sodium hydrogen carbonate reacts with sulfuric acid producing sodium sulfate, water, and carbon dioxide. Sodium hydrogen carbonate is added until the fizzing due to the formation of carbon dioxide stops. If 27.0 mL of 5.4 M sulfuric acid was spilled, what is the minimum mass of sodium hydrogen carbonate that must...
While reading a journal article you find a reference to a periodontal disease called localized juvenile periodontitis (LJP). since this is not a disease category in the currently accepted disease classification system, how does this terminology relate to modern periodontal diagnosis?
While reading a journal article you find a reference to a periodontal disease called localized juvenile periodontitis (LJP). since this is not a disease category in the currently accepted disease classification system, how does this terminology relate to modern periodontal diagnosis?
a. You perform a coffee cup calorimetry experiment to determine the enthalpy change for the dissolution of sodium chloride in water. You add 10g of NaCl to 100 ml of water at 20.00 degrees C and mix well. The final temperature is 19.80 degrees celsius which of the following statements is true. -energy moves from the surroundings to the system due to the endothermic reaction -energy moves from the system to the surroundings due to the endothermic reaction -energy moves...