What mass of NaC2H3O2 would be needed to make 200.0 mL of a pH 5.00 buffer using solid sodium acetate and 0.150 M HC2H3O2?

if you're asking what comes out, it's steam.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

the correct answer would be b) volume versus temperature, because they are also directly proportional.