A 1.0-L buffer solution contains 0.100 mol HC2H3O2 and 0.100 mol NaC2H3O2 . The value of Ka for HC2H3O2 is 1.8 * 10-5 .Calculate the pH of the solution, upon addition of 0.080 mol of NaOH to the original buffer

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest