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When dissolved in water, 1.0 mol of MgCl2 will dissociate into ____[A]____ mol of of Mg2+and...
The concentration of a 0.70 M MgBra solution can also be expressed as osmol/L or Eq/L of cations. If knowing the osmolarity of blood plasma is 0.300 osmol/L, this solution would cause red blood cells to shrink. Hence, would this solution be considered hypertonic, hypotonic, or isotonic?" -tonic"
A 4.691 g sample of MgCl2 (95.21 g/mol) is dissolved in enough water to give 750.0 mL of solution. What is the chloride (35.45 g/mol) ion concentration (in molarity) in this solution?
1.0 mol of ethanol and 1.0 mol of acetic acid are dissolved in water and kept at 100? degrees C. The volume of the solution is 250 mL. At equilibrium, 0.25 mol of acetic acid has been consumed in producing ethyl acetate. Calculate Kc? at 100 degrees C for the reaction: C2H5OH?(aq) + CH3CO2H(aq) CH3CO2C2H5(aq) + H2O?(l)
3. If 200. mL of 0.60 M MgCl2(ag) is added to 40U, ms t tilled water, what is the concentration of Mg2+(ag) and Cl-(aq) in the resulting solution? (Assume volumes are additive.) 15 20 2H [C (mol/L) [Mg] (mol/L) (A (A) 0.20 0.20 0.40 0.20 (C) 0.40 0.40 (D) 2.0 2.5 8 3@00 8. A sample of 25.0 mL of 0.120 M Ca(OH)2(aq) is titrated wit 0.150 M HCl(aq). What volume of HCl(aq) is needed to com pletely neutralize the...
ollege Chem I Suc 12) 28 A 42.85 g sample of MgCl2 (95.21g/mol) is dissolved in enough water to give 750 mL of solution. What is the chloride ion concentration in this solution?* 15 (3 Points) 2.80 M 0 0.0300 M 0 0.620 M 3.70 M 1.20 M
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
7 g of magnesium chloride (MgCl2) is dissolved in 2.40 L of water. 11g/mole) (15 pts) a. What is the molarity of solution? b. How many moles of MgCl2 are contained in 1.76L of solver C. How many liters of solvent would contain 0.0150 moles of 45.7 g of magnesium chloride (MgCl) is dissolved in 2.40 L of water. (Molar mass of 95.11g/mole) (15 pts) a. What is the molarity of solution? b. How many moles of MgCl2 are contained...
6) Two solutions are prepared. The first contains glucose (C,H,O) dissolved in water at 0.180 M concentration. The second contains 13.0 grams of MgCl, in water, with a total volume of 1.77 Liters. (MgCl, = 95.21 g/mol) a) Calculate the Molarity concentration of of the MgCl, solution: b) Calculate the osmolarity concentration of both solutions: c) Which solution would you predict to have the highest boiling point? 수 XCEO
10. If 1.50 g of solid C.HsNH:Cl is dissolved in 1.0 L of water, what is the pH of the solution? Molar Mass CH-NH3CI - 129.59 g/mol A. B. c. D. E. 1.93 3.27 7.00 10.73 14.00
6) Two solutions are prepared. The first contains glucose (C.H.O.) dissolved in water at 0.180 M concentration. The second contains 13.0 grams of MgCl, in water, with a total volume of 1.77 Liters. (MgCl, = 95.21 g/mol) a) Calculate the Molarity concentration of of the MgCl, solution: b) Calculate the osmolarity concentration of both solutions: 12) Which solution would you predict to have the highest boiling point? (2)