molal = m = moles solute/kg solvent. Assuming water as the solvent 1 kg = 1000 g/18g/mole = 55.56 moles H2O. Moles solute = 3.71 moles. Total moles present = 55.56 + 3.71 = 59.27 moles.
Mole fraction solute = 3.71/59.27 = 0.0626
.15
0.375
18%
Molarity is the number of moles of solute dissolved in one liter of solution. The units of molarity are moles per litre iemoles of solute per litre of solution. The equation for molarity is: (moles of solute)/(litres of solution) Eg 3 moles per litre or 3 mol L-1 Alternatively, volume can be measured in cubic decimeters: dm3 which are equal to litres. Eg 3 moles dm-3 is the same as 3 mol L-1 See:http://dl.clackamas.edu/ch105-04/molarity.htm
Aqueous solution of sodium chloride conducts electricity because it is a soluble ionic compound, which when dissolved in water, it dissociates into Na + and Cl - ions. These ions are mobile charge carriers which can accept and transfer electrons in solution, and therefore facilitate the conduction of electricity. Hope this helps, physicsisland@hotmail.com
This is the ratio between the molar concentration of this solute and 3,3.
0.0613 mole fraction = moles solute/(moles solute + moles water) moles water = 1000 g / 18.02 = 55.49 3.62/(55.49 + 3.62)=0.0613
The molality is 5,54.
The mole fraction of HCl in 20 percent aqueous solution is 0.21.
The mole fraction of HCl is 0.34.
No. The mole of solution is equal to mole of solute plus mole of solvent (solVENT !, not solution)
Mass percent = grams of solute/total grams of solution Mole fraction = mols component/total mols mix. Molarity = mols solute/L solution Molality = mols solute/kg solvent Hope this helps :)
3.12 m of X is 3.12 moles X in 1000 g H2Omoles H2O = 1000 g x 1 mole/18 g = 55.55 moles Total moles = 55.55 + 3.12 = 58.67 moles mole fraction X = 3.12/58.67 = 0.053
1
The molar mass of benzene (C6H6) is 78.11 grams per mole. The molar mass of toluene is 92.14 grams per mole. Mole fraction of a solute equals moles of solute divided by the moles of solute plus the moles of solvent. .5 of each is the mole fraction.
The mole fraction and molality of ethanol -C2H5OH in an aqueous solution that is 45.0 percent ethanol by volume and the density of water is 1.00g per mL that of ethanol is 0.789 grams per mL and 70/18. A mole fraction in chemistry is the amount that is divided by the total amount of all constituents.
Molarity is one mole of solute per 1000 ml of solution