You can titrate a sample of the vinegar with a known standard of NaOH. The pH at the equivalence point is determined by the hydrolysis of the salt
Answer:
One molecule
Explanation
But there is three different atoms forming this one NaOH. The three atoms are Na, O and H, that is one sodium, one oxygen, and one hydrogen.
Non metal
Metals have high melting points, are not brittle or powdery, luster and are not white in colour
I cant see the units properly. You can try using E = hf, where h is the Planck's constant and f is the frequency that you need and E is the energy released in the transition.