Hannah needs to make a solution of KMnO4 to be used in a chemistry experiment. On the shelf in her supply room is a bottle with 10.76 M KMnO4 already made. However, she only needs 5.1 mL of 1.47 M for her experiment. How many mL of WATER will she need to add to the 10.76 M solution to dilute it to the concentration she needs?

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.