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Draw an oxygen saturation curve for a cooperative protein that shows a p50 of 45 torr. On the same graph draw a c curve that shows a protein that is non-cooperative with p50 of 15 torr. label which is which and label the axis and the p50.
For the next three problems, consider 1.0 L of a solution which is 0.3 M HC2H3O2 and 0.2 M NaC2H3O2 (Ka for HC2H3O2 = 1.8 x 10-5). Assume 2 significant figures in all of the given concentrations so that you should calculate all of the following pH..
The pH of the solution is 2.81 after 15.00ml of base is added. Calculate the ionization constant,Ka, of lactic acid.
Calculate the numbers of moles of 2-butanol that needed to dissolved in ethenol(125gms) just to form 12 m 2 butanol soln also find out mass of 2-butanol ?
If 3.17 moles of ethane, C2H6 undergo combustion,according to the unbalanced equation C2H6+O2--> CO2+H2O, how many moles of oxygen are required?
what is the solubility of O2 at an elevation of 12,000 ft where the atmospheric pressure is 0.657 atm? Assume the temperature is 25°C
A sample of chloroform is found to contain 10.5 g of carbon, 93.1 g of chlorine, and 0.88 g of hydrogen. If a second sample of chloroform is found to contain 20.8 g of carbon, what is the total mass of chloroform in the second sample?
A mixture of O2, CO2, and N2 has a total pressure of 762. torr. In this mixture the partial pressure of O2 is 112. torr and the partial pressure of CO2 is 185. torr. What is the partial pressure of the N2 (in torr)?
Why is sodium hydroxide added to the solution of thiamine hydrochloride
a 30 g car rolls from a hill 12 cm high and is traveling at 154 cm/s as it travels along a 275 cm horizontal track. what is the momentum of the car?
A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.
The melting of ice requires 1.44 Kcal/mol. If this energy goes into breaking H-bonds, how many H-bonds will there be in liquid water at 0°C?
What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.518g/L at 25 ?C and 721
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