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Burning a gallon of gasoline releases of internal energy. If a certain car requires of work to drive one mile, (a) how much heat is given off to the atmosphere each mile, assuming the car gets 25.0 miles to the gallon? (b) If the miles per gallon of the car is increased, does the amount of heat released to the atmosphere increase, decrease, or stay the same?
Determining whether expired air contains carbon dioxide
Explain how much work is performed by 1 mole of water freezing to 1 mole of ice at 0 C at standard pressure? Density of ice at 0 C is 0.9168 g/mL Density of water at 0 C is 0.99984 g/mL
Describe an apparatus by which azeotrope formation can be used to drive the equilibrium toward the products, thus maximizing the yield.
A buffer is made by dissolving 0.037 mol of potassium fluoride in 135 mL of 0.0237M hydrofluoric acid. Assume no volume change when the salt is dissolved. Calculate the pH of the buffer.
Problem- When 2-butanol undergoes E1 dehydration, three alkenes are obtained. 1) Draw the structures for these alkenes.
The acidic constituent in vinegar is acetic acid. A 10.0-mL sample of a certain vinegar contains 500. mg of acetic acid. What is this mass of acetic acid expressed in micrograms?
how many grams of are cah2 needed to generate 147l of h2 gas if the pressure of h2 is 827 torr at 20
Write the correct equation accounting for the ready formation of metallic deposit on placing a magnesium strip into 0.1 M iron nitrate
Four atoms of iron (Fe) are to be combined with three molecules of oxygen (O2). How many total iron atoms and oxygen molecules will be combined during the formation of Fe3O4?
If you wanted to prepare a solution of CO in water at 25C in which the CO concentration was 1.8 mM, what pressure of CO would you need to use
What is the [H3O+] in a solution that has a pOH of 2.29? Use E notation and 3 significant figures. Is the solution 1.95X10^12? show me how you got it as well
Given that you know one gas in a mixture of gases has a pressure of .5 atm, and has a mol fraction of .18, what volume will the mixture of gases occupy if the temperature is 390 kelvin, the total number of moles of all the gases combined are 20?
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