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4. (two marks) When diluting concentrated acids, always add a. a small acid volume to a...
(4) If a 1.0L sample of 5% vinegar was diluted with distilled water so that the...
(4) If a 1.0L sample of 5% vinegar was diluted with distilled water so that the final volume was 2.4 L what would be the new concentration in mols dm'? (5) What concentration NaOH should be used for your lab if that is what I did with the original vinegar? (choose the best option) (A) 0.0100 M (C) 0.25 (B) 0.100 M (D) 1.00 M (E) 2.00 M (6) Potassium Hydrogen Phthalate (KHP) is used as a primary standard (to...
I need it right now, please help me?? PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
I need help with Goal #2 based on the prior to class calculations and the direction....
I need help with Goal #2 based on the prior to class
calculations and the direction.
Goal #2: Measure the pH of a monoprotic acids and its conjugate base Your group will be assigned one of the following conjugate acid/base pairs: a. HCI (1.0 M) - NaCI (58.44 g/mol) 6 Formic Acid (1.0 M) - Sodium Formate (68.01 g/mol) c. Propionic Acid (1.0 M) - Sodium Propanoate (96.06 g/mol) d. Ammonium Chloride (53.49 g/mol)-Ammonia (1.0 M) PRIOR TO CLASS Calculate...
Exercise #1: (4 marks) Balance each of the following redox reactions in acid condition: a) Mg(s)...
Exercise #1: (4 marks) Balance each of the following redox reactions in acid condition: a) Mg(s) + H2O(g) → Mg(OH)2(s) + H2(8) b) Cr(NO3)3(aq) + Al(s) + Al(NO3)2(aq) + Cr(s) (6 marks) Exercise #2: In both cases write the balanced formula equation of the reaction and then answer to the question. a) If 25.98 mL of 0.1180 M KOH solution reacts with 52.50 mL of CH,COOH solution, what is the molarity of the acid solution? b) If 26.25 mL of...
13 Consider 1.0 molb of two related acids, HS and H,Se, dissolved in 1.0 or 2.0L...
13 Consider 1.0 molb of two related acids, HS and H,Se, dissolved in 1.0 or 2.0L of water, (data summarized in the table below). In which solution will the percent ionization of the acid be the lowest? Solution --#of moles 1-Volume(L). 1.0 2.0 1.0 1.0 B-HS 2.0 (a) A (b) B (c) C (d) D (e) All solutions have equal percent ionization of acid
I need both of these answered assuming for 5 the volume of NAOH is 100 ml...
I need both of these answered
assuming for 5 the volume of NAOH is 100 ml and the actual
concentration of acetic acid is 20.
(5) What concentration NaOH should be used for your lab if that is what I did with the original vinegar? (choose the best option) (A) 0.0100 M (C) 0.25 (B) 0.100 M (D) 1.00 M (E) 2.00 M (6) Potassium Hydrogen Phthalate (KHP) is used as a primary standard (to standardize basic solutions) because it...
1. Identify the Brönsted acid and base in the following reaction, and identify the conjugate base...
1. Identify the Brönsted acid and base in the following reaction, and identify the conjugate base and acid formed. HSO3-(aq) + CH3NH3(aq) ------ H2SO3(aq) + CH3NH2(aq) 2. Write the formulae for the conjugate acids of: 1. a) C2042: the oxalate ion. 2.b) C6H5NH2, aniline. 3.c)NH2OH, hydroxylamine. (Use above question as a guide for where to put the H.) 3. Calculate the molarity of OH' in solutions with the following concentrations of H30*: a) 0.020 mol LP b) 1.0 x 10-5...
just need ionic equation + net ionic equation small test tube. Add a few drops of...
just
need ionic equation + net ionic equation
small test tube. Add a few drops of 1.0 M hydrochloric acid in the test tube and records wie t observations. Our C. Take a small amount of sodium hydrogen carbonate (sodium bicarbonate) and n seation fizynbbleo Names: icak water Canoe Observations: chtonde + CO2 H2O →Nach + HCI (a 1) lonic Eqn. Net lonic Eqn: ake a small amount of sodium hydrogen carbonate (sodium bicarbonate) and place it in a Add...
A buffer solution is able to maintain a constant pH when small amounts of acid or...
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 mL solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O,. The initial concentration of both the acid and the base are 0.0100 mol/ 0.1000 L...
10. Fill in each blánk with increases or decreases As K, increases, acid strength As Kb...
10. Fill in each blánk with increases or decreases As K, increases, acid strength As Kb increases, base strength As pK, increases, acid strength As pKb increases, base strength As acid strength increases, conjugate base strength The stronger an acid, the the conjugate base. (stronger or weaker) HoCI NH4 11. a) Which is the HS stronger acid? stronger acid? stronger base? stronger base? HF pk-3.14 CH,OH pk, 10.0 b) Which is the c) Which is the d) Which is the...
(4) If a 1.0L sample of 5% vinegar was diluted with distilled water so that the final volume was 2.4 L what would be the new concentration in mols dm'? (5) What concentration NaOH should be used for your lab if that is what I did with the original vinegar? (choose the best option) (A) 0.0100 M (C) 0.25 (B) 0.100 M (D) 1.00 M (E) 2.00 M (6) Potassium Hydrogen Phthalate (KHP) is used as a primary standard (to...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
I need help with Goal #2 based on the prior to class
calculations and the direction.
Goal #2: Measure the pH of a monoprotic acids and its conjugate base Your group will be assigned one of the following conjugate acid/base pairs: a. HCI (1.0 M) - NaCI (58.44 g/mol) 6 Formic Acid (1.0 M) - Sodium Formate (68.01 g/mol) c. Propionic Acid (1.0 M) - Sodium Propanoate (96.06 g/mol) d. Ammonium Chloride (53.49 g/mol)-Ammonia (1.0 M) PRIOR TO CLASS Calculate...
Exercise #1: (4 marks) Balance each of the following redox reactions in acid condition: a) Mg(s) + H2O(g) → Mg(OH)2(s) + H2(8) b) Cr(NO3)3(aq) + Al(s) + Al(NO3)2(aq) + Cr(s) (6 marks) Exercise #2: In both cases write the balanced formula equation of the reaction and then answer to the question. a) If 25.98 mL of 0.1180 M KOH solution reacts with 52.50 mL of CH,COOH solution, what is the molarity of the acid solution? b) If 26.25 mL of...
13 Consider 1.0 molb of two related acids, HS and H,Se, dissolved in 1.0 or 2.0L of water, (data summarized in the table below). In which solution will the percent ionization of the acid be the lowest? Solution --#of moles 1-Volume(L). 1.0 2.0 1.0 1.0 B-HS 2.0 (a) A (b) B (c) C (d) D (e) All solutions have equal percent ionization of acid
I need both of these answered
assuming for 5 the volume of NAOH is 100 ml and the actual
concentration of acetic acid is 20.
(5) What concentration NaOH should be used for your lab if that is what I did with the original vinegar? (choose the best option) (A) 0.0100 M (C) 0.25 (B) 0.100 M (D) 1.00 M (E) 2.00 M (6) Potassium Hydrogen Phthalate (KHP) is used as a primary standard (to standardize basic solutions) because it...
1. Identify the Brönsted acid and base in the following reaction, and identify the conjugate base and acid formed. HSO3-(aq) + CH3NH3(aq) ------ H2SO3(aq) + CH3NH2(aq) 2. Write the formulae for the conjugate acids of: 1. a) C2042: the oxalate ion. 2.b) C6H5NH2, aniline. 3.c)NH2OH, hydroxylamine. (Use above question as a guide for where to put the H.) 3. Calculate the molarity of OH' in solutions with the following concentrations of H30*: a) 0.020 mol LP b) 1.0 x 10-5...
just
need ionic equation + net ionic equation
small test tube. Add a few drops of 1.0 M hydrochloric acid in the test tube and records wie t observations. Our C. Take a small amount of sodium hydrogen carbonate (sodium bicarbonate) and n seation fizynbbleo Names: icak water Canoe Observations: chtonde + CO2 H2O →Nach + HCI (a 1) lonic Eqn. Net lonic Eqn: ake a small amount of sodium hydrogen carbonate (sodium bicarbonate) and place it in a Add...
A buffer solution is able to maintain a constant pH when small amounts of acid or base are added to the buffer. Consider what happens when 1 mL of a 5 M solution is added or 0.005 mol of HCl are added to a 100.0 mL solution acetic acid buffer that contains 0.0100 mol of Acetic acid, HC,H,O,, and 0.0100 mol of sodium acetate, NaC,H,O,. The initial concentration of both the acid and the base are 0.0100 mol/ 0.1000 L...
10. Fill in each blánk with increases or decreases As K, increases, acid strength As Kb increases, base strength As pK, increases, acid strength As pKb increases, base strength As acid strength increases, conjugate base strength The stronger an acid, the the conjugate base. (stronger or weaker) HoCI NH4 11. a) Which is the HS stronger acid? stronger acid? stronger base? stronger base? HF pk-3.14 CH,OH pk, 10.0 b) Which is the c) Which is the d) Which is the...
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