Choose the correct statement considering the Avogadro No. estimation: The use of 2mL in measuring the number of drops is to decrease the uncertainty We used a surface area of a square The fatty acid is used for its proprietary as hydrophilicity only Each 2mole contain 6.022 x 10^{23}

Choose the correct statement considering the Avogadro No. estimation: The use of 2mL in measuring the number of drops is to decrease the uncertainty We used a surface area of a square The fatty acid is used for its proprietary as hydrophilicity only Each 2mole contain 6.022 x 10^{23}

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter11: Solutions And Colloids

Section: Chapter Questions

Problem 3E: When KNO3 is dissolved in water, the resulting solution is significantly colder than the water was...

See similar textbooks

Related questions

Q: A 25 mL liquid bleach sample is diluted with water to 1000 mL in a bubble gel. 25 mL of the diluted…

A: The balanced chemical reactions are as follows: I- + OCl- + H2O = I2 + Cl- + 2OH- 2 Na2S2O3 + I2 =…

Q: Use the simulation lab to obtain the distance for the solvent front and the distance for each spot…

Q: Imagine you are attempting to separate these three dipeptides from each other using anion exchange…

Q: Which of the following is INCORRECTLY paired? a. SDS-PAGE : Size b. Gel filtration chromatography :…

Q: 5. Here, you can find an example of a paper chromatography experiment. Use the two Chromatograms…

A: Paper chromatography is a analytical Method to separate coloured components. A drop of a mixture…

Q: Trial % Acetic Acid 1 5.292 5.940 5.828 f. How much NaOH solution in mL would you have used per…

A: Mean is the average of the numbers, i.e., add up all the numbers, then divide by how manynumbers…

Q: Write functions and procedure of analysis of various volatile organic molecules by using Gas…

A: Given: Functions and procedure of analysis of various volatile organic molecules by using Gas…

Q: In spectrophotometry, does the sample tested contain the allowable concentration of Allura red as…

A: ✓Allura red occurs as a red-brown powder or granule. ✓It can be used for coloring food, drugs, and…

Q: The portions of the sample having the analyte with similar composition analyzed using the same…

A: The portions of the sample having the analyte with similar composition analyzed using the same…

Q: Iman has a mixture of two compounds A and B. A is a protein, and B is a lipid. He plans to separate…

A: Apparatus diagram

Q: The relative peak areas and retention for a mixture of five fatty acids and standard separated by GC…

A: A question based on analytical separations that is to be accomplished.

Q: A mixture of seven amino acids (glycine, glutamate, leucine, lysine, alanine, isoleucine, and…

A: Chromatography is the technique that is used to separate the amino acids based on the priority and…

Q: The melting point of various ratios of mixtures of urea and acetaminophen) were determined and the…

A: We will plot concentration (%) on y axis and melting point on x axis. Moreover, the melting point…

Q: Which of the following spot is the most soluble in water?

A: Which of the following spot is the most soluble in water?

Q: Which of the following statements is incorrect? O A. In reversed-phase chromatography, the…

Q: 1 10 O O TRS MKR SRH 4. Junghwan wanted to determine which of the following skin care product which…

A: Paper chromatography is used to separate different chemical compounds based on their different…

Q: According to the USP, the percentage purity of ascorbic acid in tablets must be 90.0% to 110.0%. The…

A: The answer is shown below.

Q: A student developed a new dye called Dye C. It was analyzed against other dyes using paper…

A: The developed chromatogram is:

Q: what do the different colors in the result of paper chromatography experiment indicates? 2. Why do…

A: Paper chromatography is a technique in which colour chemicals or substances are separated.

Q: A student performed a chromatography experiment to determine the Rf value of an unknown amino acid.…

A: The Rf value ( retention factor) of a compound is defined as the ratio of distance travelled by the…

Q: A 18 g of unknown organic sample was dissolve in 756 mL of benzene. The boiling point of benzene was…

A: Given data is as follows: The mass of organic sample = 18 g The volume of benzene = 756 mL The…

Q: What would the gc chromatogram look like when 6.65 g NaBr, 3.78 g NaCl, 7.5 mL of DI water and 5 mL…

A: When NaBr,NaCl and 1-butanol are added together, the halides Reacted with butanol.…

Q: 14. After a thin layer chromatography experiment, spots of J, Kand Lappeared 10.1, 7.0 and 2.7 cm,…

Q: Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument. O True O False

A: The statement, "Gas chromatography cannot analyze mixtures due to the sensitivity of the instrument"…

Q: Why do we not need "spitless" injection to measure the toluene content of gasoline using gas…

A: Given : Splitless injection. To find : Reason for using Splitless injection in gas chromatography.…

Q: Use the simulation lab to obtain the distance for the solvent front and the distance for each spot…

A: Rf value can be calculated using the expression: Rf=Distance travelled by the componentDistance…

Q: 10 grams of compound A is dissolved in 50ml water Methanol will be used to extract A form water…

A: Extraction is the process of separating a desired substance by transferring the substance from one…

Q: B Given the chromatogram from a simple paper chromatography experiment, which statement is TRUE? O…

Q: Discuss the differences between the following terms and describe briefly the corresponding…

A: Given Discuss the differences between the following terms and describe briefly the corresponding…

Q: Caffeine, benzoate, and aspartame content of mountain dew soda was determined using reverse phase…

A: Given: Concentration of standard Caffeine used = 0.70 mg/mL Concentration of standard Benzoate used…

Q: A spot of black ink was placed on a strip of filter paper. The chromatogram was developed using an…

Q: You have obtained a gas chromatogram of a two component mixture of compounds A and B. The height of…

A: Given,Height of peak A = 3.84 cmWidth of A at half height = 1 cmHeight of peak B = 3.49 cmWidth of B…

Q: A spot of black ink was placed on a strip of fiter paper. The chromatogram was developed using an…

A: Chromatography is based on the principle that two substances are dissolved in the same solvent but…

Q: The chromatogram for the separation of amino acids using an acetone/HCI eluant is sketched below.…

A: To calculate Rf value for each amino acid. Rf = distance travelled by amino aciddistance travelled…

Q: The

A: Given: Data tabulation on Limonene (ug/ml) & Response of Detector is given Response…

Q: Calculate the mass percent of the ascorbic acid in the same show full solution Situation: The…

A: A numerical problem based on acid-base titration that is to be accomplished.

Q: The relative peak areas and retention for a mixture of five fatty acids separated by GC is given in…

A: A question based on analytical separation that is to be accomplished.

Q: The percentage purity of a paracetamol sample was determined by a reversed phase HPLC method as…

A: Given: Mass of powder taken = 10.0254 g. Volume of solution A prepared = 1 L Volume of solution A…

Q: You were analyzing a mixture of volatile solvents using Gas Chromatography and found out that two…

A: Chromatography is the method for the separation of a mixture with very high resolution, which is an…

Q: A student wanted to determine the color components of a black marker ink and describe the behavior…

Q: Which of the following studies WILL LEAST LIKELY use the standard chromatogram of caffeine? analysis…

A: To determine: Which studies will least likely use the standard chrmatogram of Caffeien

Q: Please propose a chromatography-based strategy to purify human insulin proteins that have been…

Q: When the soft drink Jolt is used in place of Coke in the HPLC experiment, the concentration of…

A: The explanation is given below

Q: You were assigned to determine the concentration of an unknown starch solution. [This unknown is…

A: Calculation of concentration (C = A/(L x Ɛ))The Lambert-Beer law, which forms the physical basis…

Q: You run the chromatography system with paper as the stationary phase and 70% isopropanol as the…

A: In paper chromatography, both stationary phase and mobile phase are liquid. where stationary phase…

Q: An enzymatic method for determining alcohol in the wine is evaluated by comparison with a…

A: Solution -

Q: 3. A student administered ibuprofen to a lab mice orally. She would like to find out the amount of…

A: Peak area of HPLC refers to the area covered by a peak in the chromatogram. It is proportional to…

Q: veloped a chromatogram and found that the eluent front traveled 69 mm and the Zinc cation traveled…

A: A student developed a chromatogram and found that the eluent front traveled 69 mm and the Zinc…

Q: List all possible methods for the quantitative determination of glucose solution: A) Polarimetry B)…

Q: 1- What term refers to the ability to distinguish two peaks from one another in a chromatogram? two…

A: Chromatography is a technique used to seperate components from a mixture. Here we have to answer…

Question

Choose the correct statement
considering the Avogadro No.
estimation:
The use of 2mL in measuring the
number of drops is to decrease the
uncertainty
We used a surface area of a square
The fatty acid is used for its proprietary
as hydrophilicityl only
Each 2mole contain 6.022 x 10^{23}

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1 Introduction interpretation

VIEW

Step 2 Explanation

VIEW

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

At an air-water interface, fatty acids such as oleic acid liein a one-molecule-thick layer (monolayer), with the heads in thewater and the tails perpendicular in the air. When 2.50 mg of oleic acid is placed on a water surface, it forms a circular mono-layer 38.6 cm in diameter. Find the surface area (in cm²) occu-pied by one molecule (of oleic acid M=283 g/mol).
Sttoul SuluiIUN A client requires BI). wund eleasing with 3 eleasing Shrength hydrrgen Peroseide Aorder to prepare enough solutim to do turo wo und trieatments you will Prepare 500 mL of sulutiuusing a diluent. ofescribe themethod for miscing this sulutturj Nomal saline
A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2 solution with a density of 1.01 g mL-1. The water temperature was 20 ° C, and the barometric pressure in the laboratory was 30.02 in. Hg. After the student immersed the yeast in the peroxide solution, she collected 45.1 mL of O2. (11) Calculate the percent error for the experiment. What is the observed molar volume?
A student performed the experiment described in this module, using 7.00 mL of a 1.8% H2O2 solution with a density of 1.01 g mL-1. The water temperature was 20 ° C, and the barometric pressure in the laboratory was 30.02 in. Hg. After the student immersed the yeast in the peroxide solution, she collected 45.1 mL of O2. (11) Calculate the percent error for the experiment.
Determine the exact hardness in units of mg/L as CaCO3. Ba2+ contributes to hardness as well.
Which of standard substance (or standardized solution) is correct standardization of Na2S½O;: for Na,Cr2O7; Na,B,O, 10H2O; H,C,O4 2H2O; As,O;;
(Q68) What mass (in grams) of ethylene glycol (C2H6O2) must be added to 1,296 grams of water to lower the freezing point to -1.10 °C? (3 sf)
Q1) A Sada- Lime Sample is g0% NaoH and 10% Cao. f 3 gm is dissolved in 250 ml, what is Hthe tutal normality of the Selutton as abase ? How many mililiters of 0.5N H2S4 woutd be required to titrate ioo me of the Solution? Ans. ( 0.309N, 60.59 ml)
The maximum amounts of lead and copper allowed in drinking water are 0.015mg/kg for lead and 1.3mg/kg for copper express these valves in ppm and tell the maximum amounts of each (in grams) allowed in 100g of wter
It has been observed experimentally that the AHpolution for methanol as solvent and dimethylsulfoxide (DMSO) as solute is negative. The structures of these compounds are given below. H. H A H3C "CH3 DMSO (dimethylsulfoxide) Methanol Please answer these questions in order to explain this fact: What IMFS are there between methanol molecules and other methanol molecules? Draw a diagram. What IMFS are there between DMSO molecules and other DMSO molecules? What IMFS are there between methanol molecules and DMSO molecules? Draw a diagram. If AHsolution for dissolving DMSO in methanol is negative, what does this say about the energy released in mixing methanol and DMSO molecules (AHmixing) as compared to the energy required in separating solute molecules from each other (AHsolute) and separating solvent molecules from each other (AHsolvent)? 26
(b) Calculate the quantity of lime and soda required for softening one million litre of thefollowing sample of water. If the purities of lime and soda are 80% and 85%respectively. The impurities are Silica = 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit.
Describe the preparation of i. 500 mL of 3.50% (w/v) aqueous glycerolii. 500 mL of 2.45%(v/v) aqueous ethanoliii. 5.00L of 0.020M KMnO4 from solid reagent