The molecular formula of citric acid is C 6 H 8 O 7. The chemical formula for citric acid is best shown by a diagram of its complete structural formula. This shows how the atoms are arranged in the molecule. Citric acid has three carboxyl or-COOH groups and is triprotic in nature.
In order to make tan you should mix white and brown. If you want to make the brown color yourself mix 2 parts of one primary color (like red) and 1 part of each of the other t â¦ wo (blue and yellow). The more white you use the lighter the shade of tan.
yellow +blue = green. red + blue = violet. red+white = pink. blue + very little violet + a dot of black = navy blue. gray = any two complementary colors (e.g violet and yellow, red and green, blue and orange...) ---------try this----. mixing two colors make another color.