A 0.1 M solution of a weak acid is titrated with 0.1 M NaOH. After 10 mL has been added, the pH of the solution is 3.9. What is the Ka of the acid? What is the pH when 15 mL has been added, 20 mL has been added, 25 mL has been added? Draw a titration curve that fits this information. If necessary add additional points.

What characteristics does a earthquake have

In a reduction half-reaction, which amount is shown

Idid a lab for chemistry where we put nails in a copper (ii) chloride solution. 1. why did the reaction stop? which reactant was used up? how do you know? 2. describe what was happening to the atoms of iron and copper during the reaction. what is this type of reaction called? 3. what would happen to the ratio of copper to iron if you had placed more nails in the beaker? if you had let the reaction go for less time? 4. what is the accepted ratio of copper atoms to iron atoms in this reaction? account for differences between your experimental value and the accepted value. write the balanced equation for the reaction.