A number of reports state that a solution of 70% alcohol is effective in deactivating the coronavirus. A solution is prepared with 70.0% isopropanol and 30.0% water by volume. Hint: You will need the densities of these compounds. Assume no volume change upon mixing. Calculate (A) molarity, (B) molality, and (C) mole fraction.

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.