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.
The blue we use as an additive primary color contains light from one-third of the spectrum. Yellow contains the light from the remaining two-thirds of the spectrum (red+green). When blue and yellow light are added together, they produce white light. So one pair of complementary colors is blue and yellow. Another pair is green and magenta. Another is red and cyan. When complementary colors are combined subtractively, in equal amounts, they produce neutral grey colors, or black.