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.
Mix your colors. Using the proportions provided on the Pantone guide, mix your your paints to create an exact shade of brown. Although this Pantone guide is typically used for mixing ink for prints, you can use magenta, cyan, black, and yellow paint to create the perfect hue of brown.