If you prepare a solution by adding 50 gram CaCl2 into 2 liter water, what is the Molarity (M) of this solution? Ca2+ has atomic weight of 40g/mol and Cl- is 35g/mol.
If you prepare a solution by adding 50 gram CaCl2 into 2 liter water, what is...
An aqueous CaCl2 solution has a vapor pressure of 80.2 mmHg at 50 ∘C. The vapor pressure of pure water at this temperature is 92.6 mmHg. What is the concentration of CaCl2 in mass percent? A hypothetical solution forms between a solid and a liquid. The values of the thermodynamic quantities involved in the process are shown in the following table. Action Enthalpy separation of solute 11.5 kJ/mol separation of solvent 21.8 kJ/mol formation of solute-solvent interactions -86.7 kJ/mol solute...
please answer all. 1) when you have 2.0M solution of NaCl, what is the molarity of Na+ ion and Cl- ion? 2) If you have 2.0M solution of CaCl2, what is the molarity of Ca2+ and the molarity of Cl-ion in this solution? 3) Comparing molarity of Cl- ion in 2.0M NaCl solution and 2.0M CaCl2 solution, which solution has more Cl- ion? 4) Give formula of the two ions exist in a solution of 0.10M of Al(NO3)3 ? what...
1) when you have 2.0M solution of NaCl, what is the molarity of Na+ ion and Cl- ion? 2) If you have 2.0M solution of CaCl2, what is the molarity of Ca2+ and the molarity of CI-ion in this solution? 3) Comparing molarity of Cl-ion in 2.0M NaCl solution and 2.0M CaCl2 solution, which solution has more CI-ion? 4)Give formula of the two ions exist in a solution of 0.10M of AI(NO3)3 ? what are their respective ion concentrations?
A 0.5187-gram sample of calcium chloride (CaCl2;MW 110.98g/mol) was dissolved in 300. mL of water. What is the molality of the solution? (Assume the density of water is 1.00g/ml)
If a solution contains 111g CaCl2 per liter, what is the normality. MW of CaCl2 =111g; valence Ca = +2
If 44g of CaCl2 is dissolved in enough water to make 500mL of solution, what will be the molarity M, of the solution? show work
What weight of Pb(NO3)2 will have to be dissolved in 1.00 liter of water to prepare a 100 ppm Pb2+ solution?
What mass of water must be used to prepare a solution of 25.5 g of CaCl2 dissolved in water if the mole fraction of the CaCl2 in solution is 0.105?
Question 1You are asked to prepare 50 mL of a 2 g/L solution of CaCl2 you have a stock solution of 140 g/L. How many mL of the stock doyou need to dilute to 50 mL to get this concentration?Question 2 If you mix 7 mL of a 340 g/L stock solution of KCl in a total volume of l000mL. what is the KCl concentration in your solution?Answer in g/L.
Indicate the appropriate protocol below to prepare the required solution A) Solution 1 Preparation: Prepare: 1 liter of 2 Molar Tris From: solid Tris, MW = 121.1 g/mol Procedure: B) Solution 2 Preparation: Prepare: 1 liter of 0.01 mg/mL ascorbic acid From: solid ascorbic acid , MW = 176.1 g/mol Procedure: C) Solution 3 Preparation: Prepare: 1 liter of 100 mM Tris From: 1 Molar Tris stock solution Procedure: D) Solution 4 Preparation: Prepare: 1 liter of 50 mM CaCl2...