1 determine how many grams of o2 are present when mass of a, Ask an Expert

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1. Determine how many grams of O₂ are present when mass of a sample of Earth's crust is of 328({rm g})g ? Note down that O₂ makes up 46.7(%) by mass of Earth's crust.
Assume that you are titrating both 0.10 M Acetic Acid and 0.50 M Acetic Acid solution with 1 N sodium hydroxide. How would you expect a titration curve of both the solutions and what will happen if HCl is added to the H₂O and sodium acetate buffer ?

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