As climbers ascend (go up) a mountain, the amount of oxygen in the atmosphere
decreases. In the body, hemoglobin (Hb) in red blood cells binds with oxygen (02) to
form oxyhemoglobin (HbO2).

This equation can be used to model the equilibrium between hemoglobin , oxygen,
and oxyhemoglobin.

Hb + O2 <--> HbO2

According to Le Chatelier, how would the equilibrium shift as the climbers ascend to
higher altitudes?

Which of the following is a compound? a. carbon b. oxygen c. hydrogen d. water

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml