g of solution. What is the mole fraction of of a 3 mol/dm3 concentration and 1.073...
284 cl is the ne 19 14 kg w mass Calcul gos What sodiu What satur X gwa Useful for How many grams of AICI, 6H1:0 do you need to prepare 300 cm with mass concentration of 0.123 g/cm aluminum chloride solution? (66.79) How many grams of Ba(OH)2 8H30 do you add to water to prepare 1000 cm' of mol/dm barium hydroxide solution? (315.48) How many grams of FeSO -7H0 do you need to prepare 800 g of 0.175 mass...
Density of water = 998 kg/m^3 Molecular weight of CaCO3 = 100 g/mole please help to solve this problem Determine the concentration, molarity, normality, and mole fraction of a 2-L solution containing 50 g calcium carbonate (CaCO3). Assume that the density of water is based on a temperature of 20°C/68°F.
What is the mole fraction of MgCl2 (95.12 g/mol) in an aqueous solution that is 5.80 molal MgCl2?
3. What is the mole fraction of urea in a solution that contains 2.0 mol of urea and 5.4 mol of water? 1.0.27 b. 0.37 c. 0.77 d. 0.73 e. 0.47 work? - 12
A solution is made using 80.1 g of toluene (MM = 92.13 g/mol) and 80.0 g of benzene (MM = 78.11 g/mol). What is the mole fraction of the toluene in the solution?
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...
3. 10.6 g of sodium carbonate (Na2CO3) were dissolved in water and the volume of solution made up to 1000 cm3. Which of the following correctly gives the concentrations of sodium (Na) and carbonate (CO) ions? A 0.1 mol dm3 Nat, 0.1 mol dm3 co B0.2 mol dm3 Na, 0.2 mol dm3 co 0.02 mol dm-? Na+, 0.01 mo! dm-3 CO32- 0.1 mo! dm-3 Na+, 0.2 mol dm-"??- E 0.2 mol dm3 Na", 0.1 mol dm3 co2-
If the initial concentration of ethanol was 13.5% v/v. What is the mole fraction of ethanol and water? (n water = 1.3348) and (n ethanol = 1.3639). Assuming (50 mL solution). n = refractive index. Density of Ethanol = 0.7892 g. Density of water = 0.997 g
If a 5.56 M aqueous solution of sodium hydroxide (NaOH, 40.00 g/mol) has a density of 1.17 g/mL, what is the mole fraction of sodium hydroxide? {hint: assume 1 L of solution)
7. What is the mole fraction of urea, CH4N2O, in an aqueous solution that is 46% urea by mass? 8. What volume of a 0.850 M solution of CaCl2 contains 1.28 g of solute? 9. The volume of a 27.0% (by mass) solution is 162.9 mL. The density of the solution is 1.128 g/mL. What is the mass of solute in this solution? 10. Concentrated sodium hydroxide is 19.4 M and has a density of 1.54 g/mL. What is the...