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A mutant hemoglobin has His146 of the beta chain replaced with a threonine residue. predict what the consequence of this mutation might be. specifically:
(A) would you expect a change in p50? If so, which way?
(B) would you expect a change in cooperativity? If so, which way?
(C) Would you expect a change in DPG binding? If so, which way?
(D) Would you expect the hemoglobin by electrophoresis at pH5? At pH 7? Explain.
why do we use water as diluent in preparing control and blank samples? are there any better blank sample than water?
a reaction that contributes to the depletion of ozone in the stratosphere is the direct reaction O(g)+O3(g)-->2O2(g) at 298K the rate constant is 4.8*10^5M-1s-1 use delta H values from appendix C to estimate
the concentration of carbon monoxide in a sample of air is 9.2 ppm. there are how many molecules of CO are in 1 liter of 755 torr and 23 degrees celcius
An unknown gas having a mass of 2.041 g occupies a volume of 1.15 liters at 0.974 atm and 20 degrees Celcius. Calculate the molar mass of the unknown gas.
What volume of O2 at 684 mmHg and 21 degree celsius is required to synthesize 25.0 mole of NO?
Nitroglycerine decomposes violently according to the unbalanced chemical equation below. How many total moles of gases are produced from the decomposition of 1.00 mol C3H5(NO3)3?
A compound contains only carbon, hydrogen, nitrogen, and oxygen. Combustion of a 2.18 g sample burns in excess oxygen yields 3.94 g of CO2 and 1.89 g of H2O. A separate experiment shows that a 1.23 g sample contains 0.235 g of N.
If 0.20g of gas occupies 400 mL at 30 degrees celsius and 700 mm Hg of pressure, what is the molar mass of the gas?
aluminum has the mass of 8.37g. when it is placed in a graduated cylinder containing 20.0mL of water, the water level rose 23.1mL. calculate the density and specific gravitas of the object.
consider the gaseous reaction at 347 celsius N2+3H2-->2NH3 if 2.00 mole of N2 and 3.00 mole of H2 react, which of the two reactants is the limiting reagent.
Find out What mass of the NaHCO3 reacts with the vitamin C When the tablet dissolves in H2O, it "fizzes" because the reason for this is the CHO3 reacts with the citric acid(C6H8O7 a weak organic acid) and the vitamin C?
2C4H10 + 13O2 → 8CO2 + 10H2O The equation shows the combustion of butane (C4H10). How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen.
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