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A 70.4 g ice cube floats in the Arctic Sea. The temperature and pressure of the system and surroundings are at 1 atm and 0°C. Calculate ?Ssys, ?Ssurr, and ?Suniv for the melting of the ice cube. (The molar heat of fusion of water is 6.01 kJ/mol.)
It takes 54.0 J to raise the temperature of an 11.7 g piece of unknown metal from 13.0C to 25.0C}. What is the specific heat for the metal?
Calculate the concentration of sugar in % (w/v) for 250-mL solution that contains 4.32g og sugar
What is the solubility product constant? Given Ksp = 1.1 x 10^-3 for BaF2(s), calculate the molarity of Ba+2 in a saturate solution of BaF2 (at equilibrium).
Under what conditions can you ensure that substitution will predominate and under what conditions can you ensure that elimination will predominate?
a mixture of three moles of oxygen o2g and six moles of hydrogen h2g is placed in a sealed evacuated container made of
What volume will 135 g of butane occupy at 745 torr and 35 C?
In muscles during strenuous exercise, under anaerobic conditions lactic acid builds up due to the following reaction. The carbon atom indicated by the asterisk is (a) chiral (b) prochiral (c) achiral (d) both achiral and prochiral
What happens when the base solution was added to the acid solution but was not stirred while temperature measurements were made
What is the velocity of an electron having a de Broglie wavelength that is approximately the length of a chemical bond? Assume this length to be 1.2 X 10 ^ -10 m.
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light that can be detected by the human eye. Physical constants can be found here.
Propose a reasonable synthetic strategy for the synthesis of trans-6-methyl-3-heptene from 4-methyl-1-pentyne.
Given a pure preparation of these algae, and the required supplies and equipment, devise and outline an empirical procedure for purifying Enzyme X.
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