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An analytical procedure requires a solution of chloride ions. how many grams of caCl2 must be dissolved to make 2.15 L of 0.0520 M Cl-.
a solution is made by mixing 20.0 mL 0.4 M NaCH3COO with 30.0 mL 0.4 M CH3COOH, calculate the pH? For acetic acid, Ka = 1.76 x 10-5.
Determine the final concentration if A 134 ml portion of that solution is diluted using 147 ml of H 2 O?
Calculate the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0654 M 18.4 s after the reaction starts and is 0.0112 M 82.9 s after the reaction starts.
Enough of a monoprotic acid is dissolved in water to produce a 0.0194 M solution. The pH of the resulting solution is 6.26. Calculate the Ka for the acid.
Explain why ice and concetrated HCl is used in Friedel Crafts Acylation. ( weigh 50 g of ice in 500 ml beaker. Add 25 ml of concentrated hydrochloric acid to the beaker.
a carboxylic acid reacts with water to form a carboxylic ion and H3O+ complete the following reaction
if you have 380.00 ml of water at 25.00 degrees celcius.and add 130 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
Calculate the partial pressure of hydrogen gas at equilibrium. and calculate the vaue of Kp for this reaction.
If you dissolve 4 aspirin tablets in a 340mL glass of water, what is the pH of the solution and the percent dissociation?
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
Physiological saline solutions used for intravenous injections have a concentration of 0.90% NaCl by weight
The refining of aluminium from bauxite ore proceeds by the overall reaction: 2Al2O3 + 3C --> 4Al + 3CO2.
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