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A weather balloon is filled with 15.0 liters of helium at 27 degree Celsius and 0.99 atm. What volume does the balloon have when it has risen to a point in the atmosphere where the pressure is 45 torr and the temperature is -125 degree Celsius?
The cooling water enters the condenser at 70°F and its temperature cannot increase more than 25°F as it passes through the condenser.
Zinc is extracted from its ore by heating with carbon in the blast furnace. How much zinc oxide do you need to make 130 g of zinc?
Are the following components most accurately described as cofactors, coenzymes, or neither? Fe2+, FAD, metal ion, CoQ, Lipase, Biotin
Calculate the change in entropy (in J/K) for the following reaction at 298 K: C(s) + H2O(g) ? CO(g) + H2(g)
What is the actual potential of this galvanic cell? Need step by step solution!! don't just copy and paste the other answer for this same problem..i will rate 5 stars for a good clean written answer!
What is the correct electron configuration for copper Answer a. [Ar]4s23d8 b. [Ar]4s23d9 c. [Ar]4s13d10 d. [Ar]3d10 e. [Ca]3d9
calculate the energy, in joules and calories, lost when 75.0 g of water cools from 86.4 degrees celsius to 2.1 degrees celsius
a student is asked to calculate the amount of heat involved in changing 10 grams of liquid bromine at room temperature (22.5 C) to vapor at 59 C. To do this, one must use tables 8.1 and 8.2 for information on the specific heat, boiling points
Which of the following is true of the internal energy of a system and its surroundings during an energy exchange with a negative
inexperienced student reacted 3,3-dimethyl-1-butene with H2SO4/H2O. What major product was he surprised to isolate?
What is the mass % S in alum (to 3 significant figures). What is the maximum amount of alum (in metric tons) that can be prepared from 24.3 metric tons of scrap aluminum (1 metric ton = 1000 kg)
Draw the structure of the 4 possible ionization states of tyrosine and calculate the net charge for each state. Draw the titration curve for Tyrosine. The pKa of the carboxylic acid = 2.20. the pKa of the amino group is 9.20.
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