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1) What is the balanced equation of the reaction between vanillin and sodium hydroxide?
2) After the above reduction is complete, HCl is added to precipitate the crude product. What is the balanced equation showing this reaction?
3) What impurities would be removed from the product upon washing it with ice-cold water?
How could you isolate the R-(+)-alpha-phenylethylamine from the mother liquor that remained after you crystallized and filtered off the S-(-)-alpha-phenylethylamine
If you have 240.0 mL of water at 25.00 °C and add 100.0 mL of water at 95.00 °C, what is the final temperature of the mixture.
A solution contains an unknown mass of dissolved silver ions. when potassium chloride is add to the solution.,a white precipitate forms.
A solution (volume = 100.0 ml) contains 0.27 M HCOOH(formic acid, Ka=1.8*10^-4) and 0.39 M KHCOO. a. Determine the pH of the solution b. We add 4.00 ml of 4.0 M HNO3 to this solution. Determine the new pH.
What is the value of Ksp for Ag2SO4 if 5.40 g is soluble in 1.00 L of water?
which of the water samples that you tested had the highest calcium concentration? does this correlate with the total dissolved solids results you obtained
When Cl2 is used as water disinfectant, the following reactions should be used to determine the concentration of different species.
What is the density of gallium in grams per cubic centimeter at 25 C if a 1.00 cube has a mass of 0.2133.
Given that the atomic mass of carbon is given as 12.0107 g/mol, what are the approximate relative abundances of the two isotopes 12C and 13C?
suppose a 0.100 M solution of each of the following substances is prepared. Rank the pH of the resulting solutions from lowest to highest: KF, NH4I, HBr, NaCl, LiOH.
A piston has an external pressure of 11.0 atm . How much work has been done in joules if the cylinder goes from a volume of 0.160 liters to 0.580 liters.
Write the chemical equation(s), including state symbols, for what happens when the following ionic compounds are placed in water. Are these substances reacting with water when they are added to water
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