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.
That sounds simple enough, though the shade of brown you get depends from what green and what red you mix, and in what proportions. BROWN = GREEN + RED. As we all know green is achieved mixing blue and yellow. GREEN = BLUE + YELLOW. That means that brown is the mixing of the three primaries, in different proportions. BROWN = (BLUE + YELLOW) + RED. Green is a very tricky color to mix. Depending on what hues you are mixing and in what proportions you get totally different greens.