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.
Most of the time if you put a red, a yellow and a blue together, one of the secondary combinations will come out muddy or weak. A blue and a yellow that make a good green will result in a color wheel that makes a grayish color instead of a vivid purple. A red and a blue that make a good purple will wind up with a grayed green on the other side, or a murky brown for orange. The reason for this is that most primaries aren't pure.