Calculate the pH and [C6H5O73-] ion in a 0.10 M solution of citric acid. Ka1 = 7.4 x 10-4, Ka2 = 1.7 x 10-5 and Ka3 = 4 x 10-7. The formula for citric acid is H3C6H5O7. It has 3 ionizable protons.

9. write the chemical equation for the following word equations. include symbols for physical states in the equation. a. solid zinc sulfide + oxygen gas -> solid zinc oxide + sulfur dioxide gas b. aqueous hydrochloric acid + aqueous barium hydroxide -> aqueous barium chloride + water

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i. e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

In which phase(s) do the molecules take the shape of the container?