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What is the osmotic pressure, in atm, of a solution formed by dissolving 17.2 g of AlCl3 in 0.588 L of water at 57.4 oC? (R = 0.0821 L-atm/mol-K; 0 oC = 273 K) a) The osmotic pressure of this solution is 23.8 atm. b) The osmotic pressure of this solution is 5.95 atm. c) The osmotic pressure of this solution is 4.14 atm. d) The osmotic pressure of this solution is 793 atm. e) The osmotic pressure of this solution is 358 atm.
The heat of vaporization of water at this temperature is 574 cal/g. We normally do not sweat this much. Explain what is wrong with this calculation?
Cobalt was used as an internal standard to analyze a sample of titanium with atomic absorption spectroscopy. A mixture was prepared by combining a 4.50 mL Ti solution of unknown concentration with 2.00 mL of a 10.5 micrograms/mL solution of Co
The next three (3) problems deal with the titration of 331 mL of 0.501 M carbonic acid (H2CO3) (Ka1 = 4.3 x 10-7, Ka2 = 5.6 x 10-11) with 1.5 M KOH.
A sample of vinegar (dilute acetic acid) weighing 5.056 g is titrated with 30.25 mL of 0.1022 M NaOH. What is the weight percent of acetic acid (CH3COOH) in the sample
You are told to buy 5 packages of deli turkey, 3 loaves of bread and one jar of pickles. Our question is: how many sandwiches can we make?
Draw the product that is formed when (3R, 6R)-6-chloro-2,3-dimethyloctane reacts with sodium iodide in acetone
8 ml of the HCl was used to titrate the pK_a 3.8 group; so 2 ml was enough to titrate the rest of the high pK_a group. The upper pK_a group must have begun the experiment as 80% acid form, 20% base form.
Briefly comment on the differences in these two concentrations. calculate the [OH] in a 1.0M NaOH solution and in a buffer containing 1.0 M NH3 and 1.0 M NH4Cl.
What is the geometry and hybridization of the carbonyl carbon in carboxylic acids and their derivatives.
A soft drink contains 44 mg of sodium in 325 g of {rm H_2O}. What is the concentration of sodium in the soft drink in mass percent?
Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. Which of the two reactant is a limiting reactant
What is the molar concentration of the solution of 37.5g Ba(MnO4)2 per Liter? What is molar concentration with respect for each ion, Ba2+ and MnO42-
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