In a 70.0g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.310. What is the mass of each component?
In a 70.0g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.310. What...
In a 51.0-g aqueous solution of methanol, CH4O, the mole fraction of methanol is 0.260. What is the mass of each component?
In a 51.0 -g aqueous solution of methanol, CH 4 O , the mole fraction of methanol is 0.260. What is the mass of each component?
An aqueous solution is 34.0% by mass ethanol, CH3CH2OH. The mole fraction of ethanol in the solution is ? The mole fraction of nickel(II) bromide, NiBr2, in an aqueous solution is 2.00×10-2. The percent by mass of nickel(II) bromide in the solution is? The molality of potassium bromide, KBr, in an aqueous solution is 2.44 mol/kg. What is the mole fraction of potassium bromide in the solution?
what is the mole fraction of urea, CH4N2O, in an aqueous solution that is 59% urea by mass?
What is the mole fraction of phosphoric acid (H3PO4) in a 25.4% (by mass) aqueous solution of the acid? Enter your answer with four decimal places and no units.
4a Calculate the molarity of an aqueous solution of sodium perchlorate with a solute mole fraction of 0.081 and a density, ρ = 1.078 g/mL. Report your answer to THREE significant figures. 4b Calculate the molarity of a 41.2% by mass aqueous solution of copper (I) sulfate with a density, ρ = 1.177 g/mL. Report your answer to THREE significant figures. 4c Calculate the mole fraction of the solute of a 4.211 m aqueous solution of cadmium (II) bromide with...
1)The mole fraction of chromium(II) sulfate, CrSO4, in an aqueous solution is 5.61×10-2 . The percent by mass of chromium(II) sulfate in the solution is %. 2) An aqueous solution is 40.0 % by mass hydrochloric acid, HCl, and has a density of 1.20 g/mL. The mole fraction of hydrochloric acid in the solution is . 3)An aqueous solution is 40.0 % by mass potassium bromide, KBr, and has a density of 1.37 g/mL. The mole fraction of potassium bromide in the...
Determine the molality of a solution of methanol dissolved in ethanol for which the mole fraction of methanol is 0.417. Give your answer to 2 decimal places.
An aqueous solution has a mole fraction of solute of 0.0385. What is the molality of this solution?
Calculate the molality, molarity, and mole fraction of FeCl3 in a 21.6 mass % aqueous solution (d = 1.280 g/mL). molality _______ m molarity _______M mole fraction ________