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Two unlabelled bottles containing clear, colorless liquids are found in the organic section of the chemical storage room. Explain the physical or chemical tests that could be conducted in order to find out whether the two substances are unsaturated or saturated.
What information is obtained from analyzing the blank? Is this sample 100% elution solvent?
At 25C, H2O2 decomposes according to the following equation. 2H2O2(aq) => 2H2O (l) + O2(g) .55V
If 25.00 mL of 0.07976 M benzoic acid is neutralized by 26.48 mL 0.07530 M NaOH, calculate the quantities of benzoic acid and NaOH you would need to prepare the volume of 1:1 buffer.
Suppose helium nuclei has exactly the same mass as adding two single protons and neutrons, the Sun's luminosity would be
A soluble iodide was dissolved in water. Then an excess of silver(I) nitrate, AgNO3 was added to completely precipitate out all the iodide ion as silver(I) iodide, AgI. if 1.545 grams of soluble iodide gave 2.185g of silver(I) iodide, then
Determine the molarity of a saturated aqueous solution of NaI formed as 25degree celsius assuming that the added NaI does not add significantly to the volume of the water?
A compound contains only carbon, hydrogen, and oxygen. Combustion of 51.34 g of the compound yields 75.26 g of CO2 and 30.81 g of H2O. The molar mass of the compound is 90.078 g/mol.
Calculate the pH of each of the following solutions containing two solutes in the concentrations indicated. (a) 0.50 M HOAc (acetic acid), 0.5 M NaOAc (sodium acetate); Ka = 1.8 x 10-5
What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate. What percentage of the Ca2 (aq) can be separated from the Ag (aq) by selective precipitation
The Ka for acetic acid, HC2H3O2, is 1.8 x 10-5. 1. What is the pH of 50.0 mL of 0.100M solution, if 0.00 mL of base has been added
The production of NO gases is an unwanted side reaction of the main engine combustion process that turns octane,C8H18 , into CO2 and water. If 85% of the oxygen in an engine is used to combust octane, and the remainder used to produce nitrogen dio..
A certain reaction has an activation energy of 70.0 Kj/mol and a frequency factor of A1 = 4.80×1012. A) What is the rate constant, k , of this reaction at 30.0 C
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