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Explain how many possible trisubstituted derivatives C6H3X2Y can be obtained from the para disubstituted benzene C6H4X2? Overlook directive effects of the substituents X and suppose that all positions on the ring are accessible to the reagent Y+.
A solution of H2SO4 was standardized against a sample of CaCO3 (FW = 100) weighing 0.7242g. The same required 29.90 mL of the acid and the excess acid was back titrated with 10.20mL of NaOH solution. If 1.00mL of the acid will react with 1.02 mL o..
Given that the sample is a mixture of multiple chemicals and you are NOT given a mixture of KNOWN quantities, what experiement(s) should we do to create our own KNOWN data
If the solution is 98.2 (wt/wt %) sulfuric acid and has a density of 1.83 g/mL, calculate the molarity of concentrated sulfuric acid. FW(H2SO4) = 98.086 Include unit symbol.
a sample of 1.800 grams of octane c8h18 was burned in a bomb calorimeter whose total heat capacity 11.66 kjdegc. the
If the total mass of H2O produced is 22.0 grams, what was the approximate mass of the methane in the original mixture?
Calculate the [H3O+], pH, and the fraction of dissociation (α) in an aqueous 0.140 M NH3 solution. (Hint: You will need the Ka, located in the back of your textbook.)
At a birthday pool party, the temperature is 29.5C and the atmospheric pressure is 765.4mmHg. One of the decoration hellium balloons has a volume of 6.25L. what would be the volume of the balloon if it were submerged in a swimming pool to a depth ..
for the reaction represented by the equation cl2 + 2kbr 2kcl +br2 how many moles of potassium chloride are produced from 119 g of potassium bromide?
Calculate the pH of the solution made by adding 0.50 mol of propanoic acid, ( C2H5COOH or HC3H5O2) and 0.30mol of sodium propanoate (C2H5COONa or NaC_3H_5CO_2) to 1.00L of water. The value of Ka for C2H5COOH is 1.3x10^-5.
When 8.0 g of magnesium was reacted with excess dilute sulphuric acid, 20 g of magnesium sulphate was obtained. What is the percentage yield of the magnesium sulphate
water with a mass of 0.500 rm kg at 15.0circ rm c is mixed with 0.800 rm kg of water at 35.0circ rm c. what is the
How do you determine which methyl group gets the equatorial position in an 1-4 disubstituted isomer? (Assuming the methyl groups are different. For example, one is ethyl and the other is methyl).
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