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You wish to prepare 0.037 M KCIO3 from a stock solution of potassium chlorate that is...
You wish to make a 0.249 M hydrobromic acid solution from a stock solution of 12.0...
You wish to make a 0.249 M hydrobromic acid solution from a stock solution of 12.0 M hydrobromic acid. How much concentrated acid must you add to obtain a total volume of 50.0 mL of the dilute solution? __mL You wish to make a 0.112 M nitric acid solution from a stock solution of 12.0 M nitric acid. How much concentrated acid must you add to obtain a total volume of 150 mL of the dilute solution? __mL In the...
You need to prepare an acetate buffer of pH 6.29 from a 0.704 M acetic acid...
You need to prepare an acetate buffer of pH 6.29 from a 0.704 M
acetic acid solution and a 2.48 M KOH solution. If you have 575 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.29? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 6.29 from a 0.704 M acetic acid solution and a 2.48 M...
Potassium chlorate decomposes in the following manner: 2 KCIO3 (s) → 2 KCl(s) + 3 O2...
Potassium chlorate decomposes in the following manner: 2 KCIO3 (s) → 2 KCl(s) + 3 O2 (s) If you start with 3.00 g of potassium chlorate, how many moles of oxygen will be produced? (first blank is a number, the next the unit) Assuming a temperature of 24.0°C and a pressure of 0.982 atm, how many liters of gas are produced? (first blank is a number the next the unit) Question 17 (6 points) A sample of 3.30 grams of...
You wish to make a 0.132 M nitric acid solution from a stock solution of 6.00...
You wish to make a 0.132 M nitric acid solution from a stock solution of 6.00 M nitric acid. How much concentrated acid must you add to obtain total volume of 175 mL of the dilute solution? Submit Answer Retry Entire Group more group attempts remaining 1 pts are In the laboratory a student combines 37.6 ml of a 0.289 M potassium sulfide solution with 22.5 ml of a 0.629 M potassium carbonate solution What is the final concentration of...
You have a 5.0 M copper sulfate stock solution and a 2 M NaCl stock solution....
You have a 5.0 M copper sulfate stock solution and a 2 M NaCl stock solution. You wish to prepare a solution with a final concentration of 0.25 M copper sulfate and 0.25 M NaCl containing 330 mL of water as a solvent. How many milliliters of the NaCl stock solution would the solution contain?
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution of your drug. Describe how to prepare this solution fr...
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution of your drug. Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. Show any required calculations you...
You need to make an aqueous solution of 0.227 M potassium carbonate for an experiment in...
You need to make an aqueous solution of 0.227 M potassium carbonate for an experiment in lab, using a 250 mL volumetric flask. How much solid potassium carbonate should you add? __ grams How many milliliters of an aqueous solution of 0.122 M calcium acetate is needed to obtain 2.12 grams of the salt? __mL
How many grams of calcium hydroxide would you need to prepare a 7.000 x 102 mL...
How many grams of calcium hydroxide would you need to prepare a 7.000 x 102 mL solution of 0.649 M Ca(OH)2? (1 decimal place, fill in the number ONLY!)
how many milliliters of a stock solution of 2.00 M KNO3 would you need to prepare 100.0 mL of 0.150 M KNO3
how many milliliters of a stock solution of 2.00 M KNO3 would you need to prepare 100.0 mL of 0.150 M KNO3?
28 You have a stock solution of 14.8 M NHs. How many milliliters of this solution...
28 You have a stock solution of 14.8 M NHs. How many milliliters of this solution should you dilute to make 100.0 mL of 0.250 M NH A) 0.0016 L B) 1.69 mL C) 1.69 x 10 mL D) 27.0 mL E) 0.037 mL 29. Oxidation number of P in PO is: A) +2 B) +4 C) +5 D) +6 E) +3 30. Oxidation is the and reduction is the A) Gain of oxygen, loss of electrons B) Loss of...
You need to prepare an acetate buffer of pH 6.29 from a 0.704 M
acetic acid solution and a 2.48 M KOH solution. If you have 575 mL
of the acetic acid solution, how many milliliters of the KOH
solution do you need to add to make a buffer of pH 6.29? The pKa of
acetic acid is 4.76.
You need to prepare an acetate buffer of pH 6.29 from a 0.704 M acetic acid solution and a 2.48 M...
Potassium chlorate decomposes in the following manner: 2 KCIO3 (s) → 2 KCl(s) + 3 O2 (s) If you start with 3.00 g of potassium chlorate, how many moles of oxygen will be produced? (first blank is a number, the next the unit) Assuming a temperature of 24.0°C and a pressure of 0.982 atm, how many liters of gas are produced? (first blank is a number the next the unit) Question 17 (6 points) A sample of 3.30 grams of...
You wish to make a 0.132 M nitric acid solution from a stock solution of 6.00 M nitric acid. How much concentrated acid must you add to obtain total volume of 175 mL of the dilute solution? Submit Answer Retry Entire Group more group attempts remaining 1 pts are In the laboratory a student combines 37.6 ml of a 0.289 M potassium sulfide solution with 22.5 ml of a 0.629 M potassium carbonate solution What is the final concentration of...
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution of your drug. Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. Show any required calculations you...
How many grams of calcium hydroxide would you need to prepare a 7.000 x 102 mL solution of 0.649 M Ca(OH)2? (1 decimal place, fill in the number ONLY!)
28 You have a stock solution of 14.8 M NHs. How many milliliters of this solution should you dilute to make 100.0 mL of 0.250 M NH A) 0.0016 L B) 1.69 mL C) 1.69 x 10 mL D) 27.0 mL E) 0.037 mL 29. Oxidation number of P in PO is: A) +2 B) +4 C) +5 D) +6 E) +3 30. Oxidation is the and reduction is the A) Gain of oxygen, loss of electrons B) Loss of...
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