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Problem: How many joules of energy are required to run a 100 W light bulb for one day? Burning coal yields about 30 . 106 J of energy per kg of coal burned. Assuming that the coal power plant is 30% efficient, how much coal has to be burned to light that light bulb for one day?
Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7g of Fe reacts completely with oxygen
In a copper purification apparatus depositing Cu from a CuSO4 solution, operation for 5.44 hours at a constant current of 6.74 A deposits 38.8 g of Cu metal.
If the charge on the metal remained the same and nitrogen was substituted for oxygen, what would the formula and systemic name for the compound be
The next three (3) problems deal with the titration of 331 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11) with 1.5 M KOH.
Freshly cut garlic contains allicin, a compound responsible for the true garlic odor. Propose a short synthesis of allicin, starting with 3-chloropropene.
solvents in addition to acetone could be used for extracting plant photosynthetic pigments
Nitrogen, a common pollutant from the combustion of auto fuels, produces several oxides. Assume that nitric oxide is the most common oxide formed. Prepare a written response to the following questions:
While obtaining the Vmax(Vo) for Yellow & Green we utilize a yellow and Green filter. Define why did not use a blue filter on the blue band measurement of Vo
A total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 127g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 celcius .
In order to carry out the modification of a protein using site-specific mutagenesis in the most efficient way, what sort of information should you have about the protein you wish to modify?
Write a vector expression for the ball's position as a function of time, using the unit vectors î and j. (Give the answer in terms of t.)
what volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? how much sulfuric acid was in excess
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