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At what optimum pH would you recommend to separate cytochrome C (pI 10.6) from the mixture of myoglobin (pI 7.0), ribonuclease (pI 7.8) and leucine (pI 6.0) using a Dowex 50 column? Explain
A solution containing 0.190 g. of this enzyme in 187. mL of solution has an osmotic pressure at 298 K. of 1.18 torr. What is the molar mass of this new enzyme
A gas expands and does P-V work on the surroundings equal to 345 J. At the same time, it absorbs 191 J of heat from the surroundings. Calculate the change in energy of the gas.
If 18.4 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
nbspif ka1 0.059 ka2 6.5times10-5 and kw 1times10-14 then compute the molarity of c2o42- in 0.13 m oxalic acidnbsp
A compound, C7H12O4, has an IR spectrum showing a peak at 1735 cm-1. Its 1H NMR spectrum has peaks at delta 1.3 (6 H, triplet), 3.4 (2 H, singlet), and 4.2 (4 H, quartet). Draw its structure
Which of the following pairs has the member with the greater molar entropy listed first. All systems are at 25°C
Given an equation and an enthalpy change, how much heat is involved when a certain amount of an element
what would be similar about a raft full of chemistry students and some of the cans of soda that would make them both
A rubber balloon was inflated with helium gas and floated in the air. The next day, the balloon was somewhat smaller and no longer floated.
How does the strength of the attration between water molecules and sodium and chloride ions compare with the strength of the attraction between the sodium ions and chloride ions?
Calculate the molality of a solution made by dissolving 34.0 g of NH3 in 2.00 x 103 mL of water (MMNH3 = 17.04 g/mol, dH2O = 1.00 g/mL
a solution made by mixing 45.0 ml of 0.360 m propionicacid ch3ch2cooh and 10.0 ml of 1.40 m sodiumpropionate
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