2. A sample of the weak acid boric acid (H, BO2) is titrated with potassium hydroxide. The first and second steps of this reaction were quantitative.
a) Draw a pH curve with title and labeled axes and write the B-L neutralization for
each of the endpoints. (2 endpoints)
I
b) If the titration were stopped halfway between the first and second endpoints, what
entities would be present in the flask?
c) Using your answer from part b), which entities would be considered amphiprotic?
Which entities would form the buffer?

? you expect us to answer this? ? this is your schoolwork, i don't think we can with this, i think it would considering being

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

level 4 to level 2 : ))