Some of the questions are like this and i wanted to know how to do it​

The boiling point of liquids is very high what does it indicate

What material does not melt at any temperature

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5