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Problem- The amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. If all the energy obtained from burning 1.26 pounds of methane (fuel value is 11.97 kcal/g) is used to heat 124.5 kg of water at an initial temperature of 20.0 °C, what is the final temperature?
How do I yet start setting this up? Thank you
Problem- While in Europe, if you drive 113km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per liter and your car's gas mileage is 38.0mi/gal ? Assume that 1euro=1.26dollars.
a 0.4400-g sample of impure caoh2 is dissolved inenough water to make 43.90 ml of solution. 20.00 ml of theresulting
Reduce the production of hazardous waste and encourage recycling and reuse of hazardous materials by charging producers a tax or fee for each unit of waste generated.
Explain what is the cell potential at 25 if the concentrations are 0.364, 0.342, and 0.895 and the pressure of is 8.90
The element is so highly unstable that no observations of its properties have been possible. Based on its position in the periodic table, propose two different reasonable valence electron configurations for this element.
Calculate the mass percent composition of carbon in each the following carbon compounds. Express your answer using 4 significant figures. C4H10 C6H10 C8H13O5N
Multiple choice questions in Nuclear chemistry - As the temperature of a sample of a radioactive element decreases, the half-life will
An electrical generating plant is intended to produce 200 megawatts from coal. Presuming the plant operates at 38% efficiency as well as that coal has a heat content of 30 kJ/g. Compute how many tons of coal is used per year
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz ({\rm MHz}), where 1\; {\rm MHz}=10^6\; {\rm Hz}. Calculate the broadcast wavelength of the radio station 102.7 FM
For experiment 4 in chem 208, how do you find the term symbol? For example part 1b how did she find the term symbol for the red line color?
HClO is a weak acid (Ka=4.0x10-8) as well as so the salt NaClO acts as a weak base. Explain what is the pH of a solution that is 0.028 M in NaClO
What is the percentage of Ag remaining in solution when 25.0 ml of 0.115 M AgNO3 are added to 37.0 ml of 0.108 M K2CrO4. The precipitate, if it forms, is Ag2CrO4, with a Ksp= 2.0x10^-12
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