ull Umniah ?2:53 PM@ 1 28%Avogadro's number exp4Lab. ReportExperiment 4Part A: Calibrating Pipette or Dropper; with petroleum ether(PE)Trial 1 Trial 2 AverageDrops petroleum 146ether /2 mL148Drops petroleum ether /mL.B. Forming the MonolayerConcentration of fatty acid solution:g/1000ml0.143g/L=0.142Inside RadiusDiameterLarge Crystallizing 12 CmDishFatty Acid Drops sol'n Drops sol'n AverageTrial 1Trial 2Stearic6.7Part C. Calculating Avogadro's Number;

Part A: Drops of petroleum/2 ml of ether =average of the trials=drops in trial 1+drops in trial…

Answered: Lab. Report Experiment 4 Part A:…

Science

Chemistry

Lab. Report Experiment 4 Part A: Calibrating Pipette (PE) or Dropper; with petroleum ether

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: 5. We experimentally measure the rate constant of a gas phase reaction and find that it increases by…

A: Answer:Here:k1 are the rate constants at temperatures T1 and T2

Q: For the same titration as above: 50.00 mL of 0.050 M Fe2+ (buffered to pH= 5.0) with 0.050 M EDTA,…

Q: Consider an electron in a hydrogen atom occupying the third energy level and another electron in an…

A: Radius of an atom or ion having one electron is given by rn = 0.529 (n2/z) Å Where, n is no. of the…

Q: Please answer letter D, E and F. See attached pic.

A: electro chemical series Mn+2 -1.182 Cd+2 -0.402 Pb+2 -0.13…

Q: From the practical standpoint, is it better to use a "good" solvent or a "poor" solvent when…

A: Polymer molecular weight is an important characteristic that influences various properties such as…

Q: Arrange the following steps in the correct order. I. Prepare the separatory funnel. II. Mix and…

A: I. Prepare the separatory funnel. V III. Add the solution to be…

Q: What is a good way to test for losses during your procedure? Change all parameters during the…

A: The objective of the question is to identify the best method to test for losses during a procedure…

Q: sodium none of the water alcohol chloroform hydroxide choices waxes alkaloids

A: Preferred solvents used for its extraction- 1) Waxes - Waxes are traditionally extracted from plant…

Q: PLEASE INCLUDE EXPLAINATION, THANK YOUUUU: 4) Determine how many atoms are in 5.75 moles of a…

A: As we know, 1 mole of any substance contains Avogadro's No. of atoms of that substance. where…

Q: Please help me this question, thank you! "Why is using a drying agent a necessary step?"

A: Drying agent is an agent that has the property to absorb excess water or the traces of water and…

Q: Vulcanization imparts stretchiness and stability to polymers and uses sulfur. SHOW ALL WORK: I. Give…

A: Lewis dot structures are diagrams that show the bonding between atoms of a molecule as well as the…

Q: Calculate E E, and AG for the following cell reactions 2 2+ (a) Mg(s) + Sn²+ (aq) = Mg²+ (aq) +…

Q: Be sure to answer all parts. Equal volumes of 0.120 M AgNO3 and 0.150 M ZnCl₂ solution are mixed.…

A: Concentration of AgNO3 = 0.120 M Concentration of ZnCl2 =0.150 M We have to calculate the…

Q: The best practices for working with liquid chemicals (including solvents and corrosives) are to: A.…

A: Liquid chemicals encompass a wide range of substances, from simple compounds like water, alcohol,…

Q: Be sure to answer all parts. How many H atoms are in 58.5 g of isopropanol (rubbing alcohol), C3H₂O?…

A: Amount of isopropanol = 58.5 gm

Q: Aspirin, C₂H8O4, is produced from salicylic acid, C7H603, and acetic anhydride, C4H603, as shown…

A: A.Salicylic acid and aspirin have a mole ratio of 1:1. is needed to make ²2.3×10²kgacid of…

Q: Classify each of the carbohydrates shown below and draw the specified form. H. CH,OH HO- OH CH,OH H.…

Q: Analysis of electrophoresis data, basic patterns.

A: Interpretation- To tell about the analysis of the electrophoresis data , basic pattern -…

Q: A compound with the percent composition shown below has a molar mass of 182.17176 g/mol. Find it's…

A: To determine the molecular formula of the compound, we need to first determine empirical formula.…

Q: What is the energy (in cal) of the emitted photon?

Q: Make a laboratory report about Making Soap. Title: Purpose: Materials: Caustic Soda Mineral Water…

Q: 1. A weak acid HA, has a pK of 5.0. If 1.0 mol of this acid and 0.1 mol of NaOH were dissolved in…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: growth if no crystals are forming upon a. scratch air-liquid interface on flask with a glass rod or…

A: Interpretation : We have to tell the way by which crystals can grow.

Q: Starting with the following equation, Pb(NO3)2(aq) + K3PO4(aq) → Pb3(PO4)2(s) + KNO3(aq) calculate…

A: The given question related to calculation of moles of lead nitrate required to produce for 415 grams…

Q: 1. 1.02 grams of calcium metal reacts with hydrochloric acid (HCl). a. Write a balanced equation for…

Q: What is the oxidation number of phosphorus in FePO3? Enter the sign (+ or -) and then the number…

A: Oxidation number:• Oxidation number of atoms in pure element or atoms in free or uncombined elements…

Q: Suppose there is a gaseous mixture of nitrogen and oxygen. If the total pressure of the mixture is…

A: Dalton's law of partial pressures states that in a mixture of non-reacting gases, the total pressure…

Q: 22-88. Calculate the equilibrium chloride ion con- centration in a solution made by mixing 50.0 mL…

A: Given the volume of 1.00 M sodium chloride, NaCl = 50.0 mL Volume of 1.00 M mercury(I) nitrate,…

Q: Neon has a cubic closest packed structure as a solid. Assuming that neon has a radius of 154 pm,…

Q: Decide whether each of the molecules in the table below is stable, in the exact form in which it is…

A: In the given question we have find out that which compound is stable and which is unstable at basic…

Q: Calculate the mass of CO₂ produced from the decomposition of 31.00g of NaHCO3.

A: Mass of NaHCO3 = 31 gMass Of CO2 = ?Molar mass of NaHCO3 is 84.0g/mol and that of CO2 is…

Q: A chemist must dilute 20.3mL of 3.32M aqueous zinc nitrate ZnNO32 solution until the concentration…

A: We have to calculate the final volume in millimeter.

Q: Please assist with sub part C.

A: As already calculated form part (a) and (b), the density of metal is 1.8 g/mL. Now, this density has…

Q: The pH of a solution is 5.2, what is the [OH] concentration?

A: pH - It is the negative logarithm of the hydrogen ion concentration of a solution. pOH - It is the…

Q: A chemist must dilute 44.8mL of 4.18M aqueous sodium chloride (NaCl) solution until the…

A: Molarity is one of the terms that can be used to express the concentration of the solution. We…

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.749 mol of CF4 from the…

A: Given reaction : C(s) + 2F2 (g) ⇒ CF4 (g)Moles of CF4 = 0.749 mol∆H°= 141.3 kj/molWhat quantity of…

Q: 3. Calculate the volume of IM HCI needed to titrate 3.00 mL of 4% borax solution. (Hint: use the…

A: When a substance is dissolved in water, it dissociates into its corresponding ions. The solubility…

Q: If 5.08 g of copper(II) oxide is reacted with excess hydrogen gas and 2.88 g of copper is collected,…

A: The mass of copper (II) oxide (CuO) is 5.08 g.The mass of copper (Cu) collected is 2.88 g.The…

Q: Once the separation is complete in a vacuum filtration, stop the process by first Choose...[ opening…

A: Given:Once the separation is complete in a vacuum filtration, stop the process by first ........…

Q: Observation H. blue-green solution 1. Formation of purple-colored solution J. Decolorization of…

A: Here we have to differentiate the two given carbonyl compounds by chemical test.

Q: a. What is the mass in grams of 8.69 x 1023 atoms of copper? grams b. How many copper atoms are…

A: Given:a) Number of copper atoms = 8.69 x 1023 We have to determine the mass of copper.b) Mass of…

Q: What would happen if the student did not stop the development before the solvent reached the top of…

A: The solvent would wash away the dye.

Q: Limiting reagent and theoretical yield.

A: Given that, the given reaction scheme is shown below Also, given that, the mole of the each…

Q: For n = 6 and 1=3, give the sublevel designation, the allowable m, values, and the number of…

A: Quantum number:n indicates the principle quantum number.l indicates azimuthal quantum number.l= 0 to…

Q: 6. Solutions of iron (II) sulfate and barium hydroxide are mixed. 7. Solutions of calcium nitrate…

A: A question based on stoichiometry. 4 reactions are prescribed based on which the possibility of…

Q: Consider these compounds: A. Fe₂S3 B. Zn3(PO4)2 C. ZnS D. Cas Complete the following statements by…

A: The question is based on the concept of solubility product principle.It states that when a weak…

Question

ull Umniah ?
2:53 PM
@ 1 28%
Avogadro's number exp4
Lab. Report
Experiment 4
Part A: Calibrating Pipette or Dropper; with petroleum ether
(PE)
Trial 1 Trial 2 Average
Drops petroleum 146
ether /2 mL
148
Drops petroleum ether /mL.
B. Forming the Monolayer
Concentration of fatty acid solution:
g/1000ml
0.143
g/L=0.142
Inside Radius
Diameter
Large Crystallizing 12 Cm
Dish
Fatty Acid Drops sol'n Drops sol'n Average
Trial 1
Trial 2
Stearic
6.
7
Part C. Calculating Avogadro's Number;

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step 5

Trending now

This is a popular solution!

Step by step

Solved in 5 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Quality Assurance and Calibration Methods

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Please help!!! Need all parts ans with some explanation for any helpful ratings.
Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.
Fill out this paper front sheet please.
Part D One of these liquids is used as a "blowing agent" in the manufacture of polystyrene foam because it is so volatile. Which liquid would you expect to be used as a blowing agent? Match the words in the left column to the appropriate blanks in the sentences on the right. Reset Help Pentane is used as the "blowing agent" because it has a boiling point and is Ethylene glycol volatile low high Submit Request Answer < Return to Assignment Provide Feedback 6:16 PM O 4) 12/12/2021 amazon B. Mastering. Spotify Free 65°F
Please help and show work , very confused. Select the correct answers
3. List possible sources of errors from each type of polarimeter. Automatic polarimetry: Manual polarimetry:
Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.
Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.
Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.
Volumetric pipettes are designed to deliver a precise amount of liquid, but only if you a. submerge the end of the pipette into a solution you are delivering. b. allow the pipette to drain freely, and leave any residual solution in the pipette. c. hold the pipette at a 45 degree angle and ensure that all the liquid is delivered.
Solvent frost Solvent front Original spct Original spot a. b. Select the diagram that represents the correct technique for measuring the distance of the solvent front. O a. is the correct diagram. b. is the correct diagram.
Briefly explain the objectives of debarking, chipping, bleaching and beating steps in papermaking.