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A sample was placed on a chromatography column. Methylene Chloride was used as the eluting solvent. No seperation of the components in the sample was observed. What must have been happening during the experiment? How would you change the experiment in order to overcome this problem.
Molecular chlorine, Cl2, is a green gas. Sketch a few of the rotational, vibrational, and electronic energy levels of Cl2 on the same diagram to relative scale.
An aqueous solution of sodium hydroxide is standardized by titration with a 0.266 M solution of hydrobromic acid. If 17.4 mL of base are required to neutralize 28.4 mL of the acid, what is the molarity of the sodium hydroxide solution
If equal masses of H2 and O2 (100.0 grams each) are reacted together to produce water, how many grams of water could be produced.
Draw the skeletal structure of the major organic product formed inthe reaction below when the second step is heated to reflux.
what is the purpose of using acetic anhydride in an experiment reacting with salicylic acid to produce acetylsalicylic
Silver chloride will precipitate out of solution, leaving an unsaturated solution of AgCl. D) Nothing will happen since NaCl and AgNO3 are both soluble compounds.
Calculate the pH for each of the following cases in the titration of 25.0 mL of 0.230 M pyridine, C5H5N(aq) with 0.230 M HBr(aq):
The pKa of acetic acid, HC2H3O2, is 4.76. A buffer solution was made using an unspecified amount of acetic acid and 0.30 mol of NaC2H3O2 in enough water to make 1.50 L of solution. Its pH was measured as 4.50 on a meter.
Use the following data to calculate the enthalpy of solution, DeltaH soln for sodium hydroxide, NaOH
What is the equivalence volume, Ve, in milliliters? Calculate the concentration of Ca2 at V = 1/2 Ve?
How much heat is needed to convert 923 g of ice at -30°C to steam at 119°C. (The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization i..
a zero-order reaction has a constant rate of 3.00times10-4ms . if after 65.0 seconds the concentration has dropped to
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