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The osmotic pressure of blood is 7.7atm at 37 C. A 0.15 m solution of NaCl is isotonic with blood at that tempreture. Explain what molality of MgCl2 would be isotanic with blood at the same temperature?
question the electrode of a ph meter is placed in a sample of urine and a reading of 7.9 is obtained. is the sample
calculate the molarity and mole fraction of a 1.43 m solution of acetone ch3coch3 dissolved in ethanol c2h5oh. density
Which of the seven cations will be the hardest to detect (same anions as above), Why do you think this? If two or more are possible explain why.
reaction between copper and silver nitrate2agno3 cu 2ag cuno32beaker-66.88gcopper- 7.44gsilver nitrate- 1.60gwater
A 135 mL sample of a 15.0 M ethylene glycol (rm C_2H_6O_2) solution is diluted to 1.50 L.What is the freezing point of the final solution.
Student worked on a problem and the response indicated that NCl3 was a polar covalent bond. Explain how can that be when N and Cl both have electronegativity levels at 3.0
A 100.0 mL sample of 0.10 M NH3 is titrated with 0.10 M HNO3. Compute the pH of the solution before the addition of any HNO3. Kb of NH3 =1.8 × 10-5.
A doctor has ordered that a patient be giving 25 grams of glucose, which available in a concentration of 55.00 grams glucose/1,000.0 ml of solution.
To get an estimate of the number of beans in the jar you weigh six beans and obtain masses of 3.15, 3.12, 2.98, 3.14, 3.02, and 3.09 g . Then you weigh the jar with all the beans in it, and obtain a mass of 2082g . The empty jar has a mass of 6..
An amount of lactic acid is dissolved in water and the reaction is allowed to reach equilibrium. The concentration of the protonated acid is found to be 2.5 M.
What are the principal and angular quantum numbers for the HOMO and LUMO for each of the above atom. Please provide the number and letter designation for the atomic orbital
What is the freezing point of a solution of aluminum chloride that contains 42.0 g AlCl3 dissolved in 530. g of water?
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