Question

An oleic acid, C17H33COOH (282g/mol), solution is added to water in a watchglass until a monolayer...

An oleic acid, C17H33COOH (282g/mol), solution is added to water in a watchglass until a monolayer forms. Assume that there are no spaces between molecules in the monolayer and that each oleic acid molecule occupies an area of 0.25nm^2. If the concentration of the oleic acid solution is 0.00012g/ml, what is the experimental value of avogrados number?

dropper piper calibration =65 drops/ml

number of drops of oleic acid in the monolayer = 16

drops diameter of monolayer= 14.5cm

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Nitrous acid was added to 100 gallons of pure water until the pH of the solution...
Nitrous acid was added to 100 gallons of pure water until the pH of the solution dropped to 3.50. How much acid (in grams) was added to the water? Relevant information can be found near the end of the Acid-Base PowerPoint presentation.
Silver sulfate solution is added to 25.00 mL of a 0.500 M potassium chloride solution until...
Silver sulfate solution is added to 25.00 mL of a 0.500 M potassium chloride solution until no precipitate forms. If 45 mL of silver sulfate were added to react completely with the potassium chloride, what was the original concentration of silver sulfate solution? What concentration of sulfate will remain in solution after the reaction is complete if 45 mL of silver sulfate solution were added to the potassium chloride solution?
Nitrous Acid (HNO2) was added to 50 gallons of pure water until the pH of the...
Nitrous Acid (HNO2) was added to 50 gallons of pure water until the pH of the solution dropped to 3.50. The Log Acidity Constant (pKA) for HA is 3.15. How much acid (in grams) was added to the water?
If 0.040 mol AgNO3 and 0.10 mol KI are added to 200.0 mL of water, what...
If 0.040 mol AgNO3 and 0.10 mol KI are added to 200.0 mL of water, what concentration of Ag+ remains in the solution once equilibrium is established? The Ksp of AgI is 8.5 X 10-17.
A chemist needs to determine the concentration of a solution of nitric acid, HNO3. She puts...
A chemist needs to determine the concentration of a solution of nitric acid, HNO3. She puts 905 mL of the acid in a flask along with a few drops of indicator. She then slowly adds 0.600 M Ba(OH)2 to the flask until the solution turns pink, indicating the equivalence point of the titration. She notes that 245 mL of Ba(OH)2 was needed to reach the equivalence point. What is the concentration of HNO3 if 0.294 mol are present in 905...
1.521 g of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt (MW=220.29 g/mol) is dissolved in 58.56 mL of water....
1.521 g of N-2-acetamido-2-aminoethane-sulfonic acid potassium salt (MW=220.29 g/mol) is dissolved in 58.56 mL of water. 22.12 mL of HCl is added to the solution, resulting in a pH of 6.70. Calculate the concentration of the HCl solution. the pKa of ACES is 6.85. Help?
How would I calculate "Avagadro's number" from the given data? "Avagadro's number" is in quotes because...
How would I calculate "Avagadro's number" from the given data? "Avagadro's number" is in quotes because it is experimental data being delt with. Area of specimen = 41. 28 cm2 Area of molecule = 2.01 x 10-15 cm2/molecule Formula Weight = 284.5 g/mol 1 mL of liquid= 48 drops Diluted solution used 0.0265 g of steric acid. Thank you in advance! Update: 1 drop was used in the experiment. so 1/48th of a mL.
A .025 mol sample of a weak acid, HA, is dissolved in 485 mL of water...
A .025 mol sample of a weak acid, HA, is dissolved in 485 mL of water and titrated with .41M NaOH. After 29 mL of the NaOH solution has been added the overall pH = 5.414. Calculate the Ka value for HA.
A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution...
A sample of solid Ca(OH)2 was stirred in water at a certain temperature until the solution contained as much dissolved Ca(OH)2 as it could hold. A 58.6-mL sample of this solution was withdrawn and titrated with 0.0872 M HBr. It required 79.0 mL of the acid solution for neutralization. (a) What was the molarity of the Ca(OH)2 solution? (b)What is the solubility of Ca(OH)2 in water, at the experimental temperature, in grams of Ca(OH)2 per 100 mL of solution?
A 0.025 mol sample of a weak acid, HA, is dissolved in 467 mL of water...
A 0.025 mol sample of a weak acid, HA, is dissolved in 467 mL of water ant titrated with 0.41 M NaOH. After 33 mL of the NaOH solution has been added, the overall pH=5.580. Calculate the Ka value for HA.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT