" Determine the amount of sodium acetate needed to prepare 50.0 mL of acetic acid/sodium acetate...
" Determine the amount of sodium acetate needed to prepare 50.0 mL of acetic acid/sodium acetate buffer having a H of 5.0 using approximately 0.100 M acetic acid. Check the concentration of the acetic acid in the laboratory and use this exact concentration for your calculation. For acetic acid Ka= 1.8 x 105."
The answer is 0.75g NaC2H3O2. But I need to show the equation steps. Any help?
Homework Answers
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" Determine the amount of sodium acetate needed to prepare
50.0 mL of acetic acid/sodium acetate...
DATA AND CALCULATION Preparation and Base Buffer Capacity of Buffer A Mass of sodium acetate used...
DATA AND CALCULATION Preparation and Base Buffer Capacity of Buffer A Mass of sodium acetate used 0.3730g Actual pH of the buffer 5.27 Volume of the buffer used in buffer capacity titration 20.0 mL Volume (mL) of standardized NaOH used to change the pH by 1 unit 17.5 mL Concentration of standardized NaOH 0.100M Moles of NaOH needed to change the pH by 1 unit for the buffer 0.00095 mol The buffer capacity as moles of base per Liter buffer...
Calculate the pH of the following solutions: 50.0 mL 0.10 M acetic acid + 1.0 mL...
Calculate the pH of the following solutions: 50.0 mL 0.10 M acetic acid + 1.0 mL 1.0 M HCl 50.0 mL 0.10 M acetic acid + 1.0 mL 1.0 M NaOH 50.0 mL 0.10 M sodium acetate + 1.0 mL 1.0 M HCl 50.0 mL 0.10 M sodium acetate + 1.0 mL 1.0 M NaOH 50.0 mL 0.10 M acetic acid/sodium acetate buffer 50.0 mL 0.10 M acetic acid/sodium acetate buffer + 1.0 mL 1.0 M HCl 50.0 mL 0.10...
During this part #3 of the lab, you will make 2 acetic acid buffer solutions (HC2H3O2/NaC2H3O2)...
During this part #3 of the lab, you will make 2 acetic acid buffer solutions (HC2H3O2/NaC2H3O2) of the same pH (pH = 4.0), but with different concentration of the components. Use the Henderson -Hasselbalch equation to perform the following calculations. The Ka of acetic acid is 1.8 x 10-5 M. a. Buffer A: Calculate the mass of the solid sodium acetate (NaC2H3O2) required to mix with 100 ml of 0.1 M acetic acid (HC2H3O2), to prepare a pH 4 buffer....
2) A buffer solution is prepared by dissolving Sodium Acetate and Acetic acid solutions. If the...
2) A buffer solution is prepared by dissolving Sodium Acetate and Acetic acid solutions. If the overall concentration of the solution is 0.2 M and the Ka for acetic acid is 1.74 x 105 (A) What is the buffer ratio? (B) What are the individual concentrations of Acetic acid and sodium acetate needed to prepare the buffer? PH = 5 Can you please write down any assumptions needed for this particular problem? My Professor needs to see thought process. Thank...
A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 mL...
A buffer solution is prepared by dissolving 1.000 g of sodium acetate (CH3COONa) into 100.00 mL of a 0.100 M solution of acetic acid. Then 2.00 mL of a 1.00 M solution of hydrochloric acid is added to the acetic acid/sodium acetate buffer solution. The Ka of acetic acid is 1.8 × 10−5. What is the pH of HCl?
6. What mass of sodium acetate (NaCH3COO) should be dissolved in 250.0 mL of 0.30 M acetic acid (CH3COOH) to form a buff...
6. What mass of sodium acetate (NaCH3COO) should be dissolved in 250.0 mL of 0.30 M acetic acid (CH3COOH) to form a buffer of pH 5.0? [Ka for acetic acid is 1.8 × 10−5 ] (a) 11 g (b) 8.0 g (c) 7.5 g (d) 5.0 g (e) 1.4 g
Acetic Acid - Sodium Acetate Buffer Answers to the following must be solved, submitted here, and...
Acetic Acid - Sodium Acetate Buffer Answers to the following must be solved, submitted here, and also recorded in the table in your Lab Manual. Calculations must be shown in detail in your laboratory notebook. Your assigned pH is: 4.5 You are to assume that the buffer is made up by mixing volumes of 0.100 M acetic acid and 0.100 M sodium acetate solutions. Calculate the volume of 0.100 M acetic acid required to prepare 60.0 mL of a buffer...
The acetic acid/acetate buffer system is a common buffer used in the laboratory. To prepare an...
The acetic acid/acetate buffer system is a common buffer used in the laboratory. To prepare an acetic acid/acetate buffer, a technician mixes 32.6 mL of 0.0824 M acetic acid and 20.0 mL of 0.120 M sodium acetate in a 100 mL volumetric flask and then fills with water to the 100 mL mark. How many moles of acetic acid are present in this buffer? acetic acid: How many moles of sodium acetate are in the buffer? sodium acetate:
Calculate the mass of solid sodium acetate trihydrate, NaC2H3O2. ⋅ 3H2O, required to mix with 100.0...
Calculate the mass of solid sodium acetate trihydrate, NaC2H3O2. ⋅ 3H2O, required to mix with 100.0 mL of 1.0 M acetic acid to prepare a pH 4 buffer. The Ka of acetic acid is 1.8 × 10–5
D. Buffers 1. A buffer solution was made by dissolving 10.0 grams of sodium acetate in...
D. Buffers 1. A buffer solution was made by dissolving 10.0 grams of sodium acetate in 200.0 mL of 1.50 M acetic acid. Assuming the change in volume when the sodium acetate is added is not significant, estimate the pH of the acetic acid/sodium acetate buffer solution. The K, for acetic acid is 1.8 x 105. 2. Calculate the pH of a buffer solution that initially consists of 0.0400 moles of ammonia and 0.0250 moles of ammonium ion, after 20.0...
2) A buffer solution is prepared by dissolving Sodium Acetate and Acetic acid solutions. If the overall concentration of the solution is 0.2 M and the Ka for acetic acid is 1.74 x 105 (A) What is the buffer ratio? (B) What are the individual concentrations of Acetic acid and sodium acetate needed to prepare the buffer? PH = 5 Can you please write down any assumptions needed for this particular problem? My Professor needs to see thought process. Thank...
Acetic Acid - Sodium Acetate Buffer Answers to the following must be solved, submitted here, and also recorded in the table in your Lab Manual. Calculations must be shown in detail in your laboratory notebook. Your assigned pH is: 4.5 You are to assume that the buffer is made up by mixing volumes of 0.100 M acetic acid and 0.100 M sodium acetate solutions. Calculate the volume of 0.100 M acetic acid required to prepare 60.0 mL of a buffer...
The acetic acid/acetate buffer system is a common buffer used in the laboratory. To prepare an acetic acid/acetate buffer, a technician mixes 32.6 mL of 0.0824 M acetic acid and 20.0 mL of 0.120 M sodium acetate in a 100 mL volumetric flask and then fills with water to the 100 mL mark. How many moles of acetic acid are present in this buffer? acetic acid: How many moles of sodium acetate are in the buffer? sodium acetate:
D. Buffers 1. A buffer solution was made by dissolving 10.0 grams of sodium acetate in 200.0 mL of 1.50 M acetic acid. Assuming the change in volume when the sodium acetate is added is not significant, estimate the pH of the acetic acid/sodium acetate buffer solution. The K, for acetic acid is 1.8 x 105. 2. Calculate the pH of a buffer solution that initially consists of 0.0400 moles of ammonia and 0.0250 moles of ammonium ion, after 20.0...
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