This is video number six. We're going to go from molecules to mass. Our problem, 8.93 times 10 to the 24th molecules of sodium hydroxide. And we want to know how many grams of sodium hydroxide this would be. We're going to start with molecules, go to moles, and then go to grams. So here's our 8.93 times 10 to the 24th molecules sodium hydroxide. So here's our 8.93 times 10 to the 24th molecules sodium hydroxide. And we're going to multiply this so that we have molecules sodium hydroxide on the bottom and moles sodium hydroxide on the top. Fill in those numbers, 6.02 times 10 to the 23rd. Whoops. So here's or 10 to the 23rd on the bottom and one mole on the top. And then we're going to have moles sodium hydroxide on the bottom and grams sodium hydroxide on the top. Fill in those numbers. And then we can take a quick look. Molecules sodium hydroxide cancel. Molecules sodium hydroxide cancel. Molecules sodium hydroxide cancel. Plug the numbers into our calculator and we get 593 grams of sodium hydroxide.