A quality control technician is testing the concentration of muriatic acid (hydrochloric acid) to check that the concentration is within certain limits. Calculate the concentration of the hydrochloric acid if a 20.0- mL sample is titrated with standard sodium carbonate solution. The titration required 23.00 mL of 0.300 mol/L sodium carbonate to neutralize the acid. What is the concentration of the acid? Full GRASS solution.
What is the mechanism for the formation of a hemiketal from the reaction of butanone with 2-butanol?
Is a flake of napthalene soluble in kerosene?
Show method to carry out the following transformation using a Grignard reagent
Show the products of applying the reaction “Hydration of an Alkene” to the following molecule:
1. Try to dissolve a crystal of NaCl and a small flake of naphthalene/menthol crystal in 1 cm3 of each of the following solvents commonly found in the home; kerosene, ethanol (rubbing alcohol/methylated spirits), acetone (nail polish remover) and water. State whether the solids are insoluble, sparingly soluble, soluble or very soluble in each of the solvents.
2. Determine whether the solvents mix with one another. Use no more than 1 cm3 liquid. Just state whether miscible or immiscible.
3. Use your observation from 1 and 2 above, along with course content from CHM 1102, to identify the dominant intermolecular forces for each mixture.
A conductivity cell having a cell constant of 0.5 cm–1 filled with 0.02 M solution of KCl at
298 K gave a resistance of 20.2 Ω. The water used for preparing the solution had a conductivity
of 7.1 × 10–6 S cm–1. Calculate the molar conductivity of 0.02 M KCl solution.
What is the ph of a solution whose hydrogen ion concentration is 1.413 ×10-5 g. Ions/litre
What is the pH of a 0.350M solution of lithium citrate? ( Ka Citric acid= 7.4 x10-4 ) (4 marks)
A 50.0 ml solution of 0.150M acetic acid ( CH3COOH) is titrated with 0.150M NaOH. What is the ph after 20.0 mL of base has been added? Ka CH3COOH= 1.8 x10-5 (5 marks)