A 6.17 g sample of methanol was combusted in a bomb calorimeter. The temperature of the calorimeter increased by 14.62 degrees C. If the molar mass of methanol is 32.04 g/mol, and the heat capacity of the calorimeter is 5,285 rc, what is the molar AE for this reaction, In kJ/mol? Do not report units in your answer. Do use proper significant figures and report your answer using the correct sign.

A 6.17 g sample of methanol was combusted in a bomb calorimeter. The temperature of the calorimeter increased by 14.62 degrees C. If the molar mass of methanol is 32.04 g/mol, and the heat capacity of the calorimeter is 5,285 rc, what is the molar AE for this reaction, In kJ/mol? Do not report units in your answer. Do use proper significant figures and report your answer using the correct sign.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

12. A buret is filled with deionized (DI) water and the stopcock is used to adjust the meniscus of the water in the buret to an initial value of 1.06 mL. The stopcock is opened and the DI water is dispensed in a flask. The stopcock is closed and the final buret reading is 15.72 mL. The volume of DI water (mL) in the flask is 14.66 35.34 16.8 14.7
Every year Every second (1 year 365 days).
According to Wikipedia, Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby, who received the Nobel Prize in Chemistry for his work in 1960. It is based on the fact that carbon- 14 is constantly being created in the atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting carbon-14 combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire carbon-14 by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of carbon-14 it contains begins to decrease as the carbon-14 undergoes radioactive decay. Measuring the amount of carbon-14 in a sample from a…
Explain please
Temperature differences on the Rankine scale are identical to differences on the Fahrenheit scale, but absolute zero is given as 0°R. (a) Find a relationship converting the temperatures TF of the Fahrenheit scale to the corresponding temperatures TR of the Rankine scale. TR = (b) Find a second relationship converting temperatures TR of the Rankine scale to the temperatures TK of the Kelvin scale. TK =
15. You are calibrating a buret that is graduated to 0.1 mL. The measured volume delivered is 10.88 mL at 24.000°C. The calculated actual volume based on the mass of water is 10.859 mL. IMPORTANT: The actual volume is reported to 2 decimal places since the buret volume is reported to 1/100 of a mL. The buret error (mL) is: -0.02 0.02 -0.021 0.021
A student calibrated a eudiometer by first recording the mass of the empty eudiometer followed by filling the eudiometer to the 50.00 mL line with deionized water at 22°C and recorded the mass. The mass of water was 49.012 g. In an experiment run at 22°C, a reading from the eudiometer of 46.78 mL corresponds to what true volume?
Mn04 (aq) + SH"(aq) + 5e → Mn2"(aq) + 4H201) Cry0,2 (ag) + 6e → 2Cr*(aq) + 7H2O0) Cu2" +1.51 V +1.33 V *(aq)+2e Cu(s) (aq) + 2e Pb(s) (aq) + 2e→ Fe(s) +0.34 V -0.13 V Fe2+ Al3*(aq) + 3e → AI(3) -0.44 V -1.66 V Refer to Exhibit 17-1. Determine E cell for the electrochemical cell designated by the cell notation below. Al(3) | Al3* (ag) || Cu2*(aq) | Cu(s) O a. +12.0 V O b.+5.66 V Oc.-2.00 V O d.-1.32 V O e. +2.00 V
Many common materials that we ingest, though quite safe in reasonable quantities, become toxic when taken in very large doses. A measure of toxicity is the LD50 value (Lethal Dose, 50%). It is the quantity of material, expressed in mg of material per kg of subject-body-weight that, if administered to a population of subjects, would cause 50% of the population to die. The LD50 value for FD&C Red Dye No. 40 is >10,000 mg/kg in rats. Assume that the LD50 value for humans is the same as for rats. Calculate the number of mg of Allura Red present in an 8 fluid ounce glass of the beverage you used in this lab. Assume that the concentration of Allura Red in the beverage is 0.000054 M. The molar mass of Allura Red is 496.42 grams/mol 1 fl oz = 29.5735 mL Do not include units with your answer.
Space probes to Mars have shown that its atmosphere consists mostly of carbon dioxide. The average temperature on the surface of Mars is –55°C with a pressure of 0.00629 atm. Compare the density of CO2 on Mars’s surface with that on the Earth’s surface at 23°C and one atmosphere. Density on Mars/Density on Earth= ____________/1
what is the average time of these 4 times? 2:min 46sec 2min 52sec 3min 37sec 3min 54sec
Activity 4: To qualify for the Boston Marathon a 45 year old man must finish a prior marathon (26.22 miles) in 3.50 hours or less. To what average speed (in meters per second) does this correspond?