If your unknown compound partially dissolves in a weak base does that mean that your unknown is a weak acid? If so, how?
So if your compound is partially soluble it may be. Weak acid but containing electron withdrawing group . Because EWG enhances the acidity of organic compounds .
If your unknown compound partially dissolves in a weak base does that mean that your unknown...
If your unknown compound partially dissolves in a weak base does that mean that your unknown is a weak acid? If so, how?
1) Determine the pH of a 0.0785 M unknown weak base solution. Kb of the unknown weak base is 4.7 x 10−6. 2) An unknown weak acid solution with a concentration of 0.0850 M has a pH of 4.35. What is the Ka for this weak acid? 3) What is the pH of a 0.0380 M solution of HNO2? (Use your workbook to find Ka) 4) An unknown weak base solution with a concentration of 0.187 M has a pH...
What does it mean if an unknown compound reacts with the Lucas Reagent to form an red/brown precipitate? The unknown solution is an oily yellow, semi-crystal gel (partially liquid partially crystalline solid at room temp). Usually the Lucas Test turns cloudy in the presence of tertiary and secondary alcohols, but that is not what happened. Instantly after adding a few drops of the Lucas Reagent, the test tube got very hot and formed a red/brown precipitate. What group does this...
potassium butanoate KC4H702 Identify each compound or ion as solid acid, solid base, weak acid, weak base, conjugate base of solid acid, conjugate base of weak/acid or not an acid or base. Write the reaction of each with H20 and calculate pH of a 0.15M solution. hydrocyanic acid HCN chloric acid HCIO3
Potassium hydroxide completely dissolves in water. How would you best describe potassium hydroxide? O A weak base O B. weak nold O strong acid OD strong base QUESTION 14 When an ionic compound dissolves in water A the hydrogen end of water molecules surround the cations B. none of these are correct o the oxygen end of water molecules surround both the anions and the cations on the oxygen end of water molecules surround the cations O E the oxygen...
In this experiment, you will identify an unknown weak acid by titration with standardized base. This lab takes place in two parts, which you can do in either order: 1. Standardization of a sodium hydroxide solution to find its actual concentration (approximately 0.1 M) 2. Titration of the weak acid with the sodium hydroxide solution. You won't know if your acid is monoprotic (HA), diprotic (H2A), or triprotic (H3A). a.) Indicate how you would differentiate between the three different types...
The pH at the equivalence point of a titration of an unknown monoprotic substance with a strong titrant is determined to be 6.63. Based on this pH value, explain whether the unknown substance is a strong acid, strong base, weak acid, or weak base. A chemist wants to perform a reaction at pH = 8.3 so they attempt to make a buffered solution. For this buffer, the chemist dissolves 12.5 moles of methylammonium, CH3NH3+, (Ka = 2.3 x 10–11) and...
It's a weak acid strong base titration Experiment 4: Identification of an unknown acid by titration Page 2 of 15 Background In this experiment, you will use both qualitative and quantitative properties to determine an unknown acid's identity and concentration. To do this analysis, you will perform a titration of your unknown acid sample-specifically a potentiometric titration where you use a pH meter and record pH values during the titration, combined with a visual titration using a color indi- cator...
Pyridine is a weak base (C5H5N). Nitrous acid (HNO2) is a weak acid. Which ions are present when HNO2 and C5H5N are dissolved in water? Check all that apply A. H2NO2+ B. NO2- C. NO2+ D. C5H4N- E. C5H5NH+ F. C5H5NH- Pyridine is a weak base (C5H5N). Nitrous acid (HNO2) is a weak acid. Which ions are present when the salt C5H5NHNO2 dissolves in water? Check all that apply A. HNO2 B. C5H5N C. NO2- D. C5H5NH+ E. HNO2+ F....
compound name type of compound (check all that apply) ionic molecular strong weak strong weak Tonic molecular acid acid base base NHL | ammonia || 0 hydrochloric acid Ba(OH), barium hydroxide OOO нсн,со, acetic acid 0