So we multiply six by twelve, add that to twelve times one and add that to six times 16 and we get approximately 180 grams/mol. Now, using this number, we can take our 90 grams of glucose and find the number of moles. 90 grams of glucose divided by 180 grams of glucose per mole gets us 0.5
or one half moles of glucose. That's our number of moles within this solution. The final step is to use the formula for molality. Lowercase M for molality is equal to one half number of moles of salute divided by now notice we're getting 200 grams and molality ditosomality are moles per kilogram.