WebJul 29, 2024 · The molar mass of ethylene glycol is 62.068 g/mol. B The number of moles of ethylene glycol present in 35.00 g can be calculated by dividing the mass (in grams) by the molar mass (in grams per mole): 35.00gethyleneglycol(1molethyleneglycol ( g)) 62.068gethyleneglycol) = 0.5639molethyleneglycol. WebWater weighs about 18 g/mol, which is less than 29, so adding water vapor to air actually decreases the density. The amount that the density (or molar mass, if you like) decreases depends on the change in the absolute humidity--you can't calculate based on relative humidity alone without knowing the temperature. If the temperature and relative humidity …
How do you calculate molality of a solution? Socratic
WebAug 8, 2024 · 16.16: Calculating Molar Mass. Putting antifreeze into a radiator will keep an engine from freezing. By knowing how cold the … Web1 Answer. Sorted by: 4. The freezing point depression is based on the molal concentration (moles of solute per kg of solvent). Δ T f = − k f ⋅ m. You know the freezing point … ffxiv how to catch ghost faerie
Finding mole fraction from molality - Chemistry Stack Exchange
Web1 day ago · This question hasn't been solved yet. Question: Calculate the pH of a solution made of 0.50 g of KHPh and 50.0 mL of water. KHPh has a molar mass of 204.2 g/mol and at 25C HPh− has a pKa of 5.4. Calculate the pH of a solution made of 0.50 g of KHPh and 50.0 mL of water. KHPh has a molar mass of 204.2 g/mol and at 25C HPh− has a pKa … WebJan 3, 2024 · How to calculate molarity. Choose your substance. Let's assume that it is the hydrochloric acid (HCl). Find the molar mass of your substance. For the hydrochloric … WebApr 8, 2024 · How do you work out the mass of water of crystallisation for 13.5 g of. A l X 2 ( S O X 4) X 3 ⋅ 6 H X 2 O. The correct answer is 3.24 g of water but I'm unable to derive the answer. What I have tried: I worked out the mols of aluminium sulfate which is approx 0.038 mol by dividing 13.5 g/353.5. Since the ratio of aluminium sulfate: water of ... dental radiography final exam flashcards