Please help me with this work problem and explain. Determine the pH of the following solutions:...
Please help me with this work problem and explain.
Determine the pH of the following solutions:
a) You dissolve 3.42 g of acetic acid with enough water in a 250.0 ml volumetric flask. Ka = 1.76*10^-5
b) You dissolve 2.64 g of sodium acetate with enough water in a 250.0 ml volumetric flask.
c) You mix all solutions A and B from above together into a larger beaker( buffer solution)
d) You add 420 ml of 0.75 NaOH into solution C(buffer solution)
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Please help me with this work problem and explain.
Determine the pH of the following solutions:...
Determine the pH of the following solutions a) You dissolve 2.75 g of acetic acid with...
Determine the pH of the following solutions a) You dissolve 2.75 g of acetic acid with enough water in a 500.0 mL volumetric flask. Ka of acetic acid = 1.76 x 10−5 b) You dissolve 3.20 g of sodium acetate with enough water in a 500.0 mL volumetric flask. c) You mix all of Solution A and B from above together into a larger beaker d) You add 3.50 mL of 1.0 M HCl into Solution C (buffer)
You are asked to prepare 500 mL 0.300 M acetate buffer at pH 4.90 using only...
You are asked to prepare 500 mL 0.300 M acetate buffer at pH 4.90 using only pure acetic acid (MW = 60.05 g/mol pk, = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. mass: What volume of 3.00 M NaOH, must be added to the acetic acid to achieve a...
You are asked to prepare 500. mL of a 0.100 M acetate buffer at pH 5.00 using only pure acetic acid (MW=60.05 g/mol,...
You are asked to prepare 500. mL of a 0.100 M acetate buffer at pH 5.00 using only pure acetic acid (MW=60.05 g/mol, pKa=4.76), 3.00 M NaOH, and water. Answer the following questions regarding the preparation of the buffer. 1. How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. 2. What volume of 3.00 M NaOH must...
You are asked to prepare 500 ml of a 0 250 M acetate Puffer at pH...
You are asked to prepare 500 ml of a 0 250 M acetate Puffer at pH 5.00 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76). 3 00 M NaOH, water. Answer the following questions regarding the preparation of the buffer. How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. What volume of 3.00...
You are asked to prepare 500. mL 0.150 M acetate buffer at pH 5.10 using only...
You are asked to prepare 500. mL 0.150 M acetate buffer at pH 5.10 using only pure acetic acid (MW = 60.05 g/mol, pka = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500. mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. mass: DD What volume of 3.00 M NaOH, must be added to the acetic acid to achieve...
You are asked to prepare 500. mL 0.300 M acetate buffer at pH 5.10 using only...
You are asked to prepare 500. mL 0.300 M acetate buffer at pH 5.10 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500. mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. mass: 60 What volume of 3.00 M NaOH, must be added to the acetic acid to achieve...
You are asked to prepare 500. mL 0.150 M acetate buffer at pH 5.00 using only...
You are asked to prepare 500. mL 0.150 M acetate buffer at pH 5.00 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500. mL buffer? Note that the given concentration of acetat refers to the concentration of all acetate species in solution. mass: What volume of 3.00 M NaOH, must be added to the acetic acid to achieve a...
Please help, I'm so confused!!!! This is due wednesday night!!! i'm gonna fail :(((( pH of...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
For each of the following solutions, calculate the initial pH and the final pH after adding...
For each of the following solutions, calculate the initial pH and the final pH after adding 0.0100 mol of NaOH (For all answers express answers using two decimal places seperated by a comma) A) For 250.0 mL of pure water, calculate the initial pH and the final pH after adding 0.0100 mol of NaOH B) For a 250.0 mL of a buffer solution that is 0.235 M in HCHO2 and 0.275 M in KCHO2, calculate the initial pH and the...
This is from a Study of Buffer Solutions and pH of Salt Solutions Lab. I calculated...
This is from a Study of Buffer Solutions and pH of Salt
Solutions Lab. I calculated Ka to be 3.2*10^-5. Why is my value
larger than the standard value?
Procedure:
10. How does your calculated value of Ka compare with the standard value of Ka for acetic acid? Discuss why your value may be larger or smaller than the standard value. Caleutats Ka 3.2x 10-5) Cyato-s Learning Objectives: 1. To test the acidic and basic properties of ionic compounds 2....
You are asked to prepare 500 mL 0.300 M acetate buffer at pH 4.90 using only pure acetic acid (MW = 60.05 g/mol pk, = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. mass: What volume of 3.00 M NaOH, must be added to the acetic acid to achieve a...
You are asked to prepare 500 ml of a 0 250 M acetate Puffer at pH 5.00 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76). 3 00 M NaOH, water. Answer the following questions regarding the preparation of the buffer. How many grams of acetic acid will you need to prepare the 500 mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. What volume of 3.00...
You are asked to prepare 500. mL 0.150 M acetate buffer at pH 5.10 using only pure acetic acid (MW = 60.05 g/mol, pka = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500. mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. mass: DD What volume of 3.00 M NaOH, must be added to the acetic acid to achieve...
You are asked to prepare 500. mL 0.300 M acetate buffer at pH 5.10 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500. mL buffer? Note that the given concentration of acetate refers to the concentration of all acetate species in solution. mass: 60 What volume of 3.00 M NaOH, must be added to the acetic acid to achieve...
You are asked to prepare 500. mL 0.150 M acetate buffer at pH 5.00 using only pure acetic acid (MW = 60.05 g/mol, pKa = 4.76), 3.00 M NaOH, and water. How many grams of acetic acid will be needed to prepare the 500. mL buffer? Note that the given concentration of acetat refers to the concentration of all acetate species in solution. mass: What volume of 3.00 M NaOH, must be added to the acetic acid to achieve a...
Please help, I'm so confused!!!! This is due wednesday night!!!
i'm gonna fail :((((
pH of Buffer Solutions Procedure: Acetic Acid-Sodium Acetate Buffer (pKa acetic acid = 4.75) Weigh about 3.5 g of Na2C2H302 3H2O, record the exact mass, and add to a 250 ml beaker. Measure exactly 8.8 mL of 3.0 M acetic acid (use 10 mL grad cylinder) and add to the beaker containing the sodium acetate. • Measure exactly 55.6 mL of distilled water and add to...
This is from a Study of Buffer Solutions and pH of Salt
Solutions Lab. I calculated Ka to be 3.2*10^-5. Why is my value
larger than the standard value?
Procedure:
10. How does your calculated value of Ka compare with the standard value of Ka for acetic acid? Discuss why your value may be larger or smaller than the standard value. Caleutats Ka 3.2x 10-5) Cyato-s Learning Objectives: 1. To test the acidic and basic properties of ionic compounds 2....
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