Calculate the percent by mass and the molality in terms of CuSO4 for a solutionprepared by dissolving 11.5g of CuSO4.5H2O in 0.1000kg of water Remember to consider thewater released from the hydrate. 相关知识点: 试题来源: 解析 解m(CuSO_4)=11.5*(159.61)/(249.69)=7.35(g) 则w(CuSO_...
I know that i have to convert the molality to grams somehow to get the mass of the solute but i am stuck, please help with detail, i also know the m=mols of solute/kg of solvent, caffeine is the solute and the chloroform is the solvent and the mass %= mols of solute/total mass...
To answer this question we consider a simple example of NaCl solute in liquid water solvent to form an aqueous solution. The NaCl solute has a mass... Learn more about this topic: Molarity vs Molality | Comparison, Formula & Examples ...
The mass percent indicates that 16.8 grams of KI is present per 100 g of the solution. To begin, we can determine the volume of the solution by using... See full answer below.Become a member and unlock all Study Answers Start today. Try it now Create an ...
Density (g/cm3) Mass Percent of SoluteHydrochloric acid 1.19 38Nitric acid 1.42 70Sulfuric acid 1.84 95Acetic acid 1.05 99Ammonia 0.90 28Calculate the molarity, molality, and mole fraction of each of the preceding reagents.This is what I'm trying to doI convert each density into (g/L). ...
What is the molality of the glucose solution? a. 0.283 m b. 0.000256 m c. 0.245 m d. 0.256 m e. 0.351 m A solution contains 20 g of solute dissolved with 0.5 L water, what is the percent w/v of this solution? What mass of a 33.0% ...
12,180 182 As opposed to, for example, % by mass.FAQ: Percent at. concentration unit? What is percent at. concentration unit? Percent at. concentration unit is a unit of measurement used in chemistry to express the concentration of a solution. It is the percentage of the total volume ...
Using the above example, you would divide 863.6 g by 1,000 to get 0.8636 kg solvent. Step 6 Divide the original moles of chemical in 1 liter of solution by the mass of solution in kg. The result is the molality of the solution, or the moles chemical per 1 kilogram solvent. In this...