What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to which 0.110 mol of NaOH were added?

what are the statements

your answer is c) plasma

~*"auba14"*~

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;