A group of students were trying to experimentally determine thedensity of an unknown liquid. They developed a standard techniquefor measuring density by recording the mass of a liquid using ananalytical balance. The volume of the liquids were accuratelymeasured using a serological pipette and was recorded to be 5.00mL for each trial. The students were able to collect the following data:LIQUIDTrial 1 (mass inTrial 2 (mass inTrial 3 (mass inTheoreticalSAMPLEgrams)grams)grams)DensityHexane3.2813.2843.2790.655 g/mlAcetone3.9213.9233.9470.784 g/mLEthanol3.9123.9113.9130.789 g/mLunknown3.9143.9113.910Using the calculated experimental average density of the liquidsamples as reference, what is the probable identity of theunknown?ethanolheхaneacetonecannot be determined

Answered: Using the calculated experimental…

Using the calculated experimental average density of the liquid samples as reference, what is the probable identity of the unknown? ethanol hexane acetone cannot be determined

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 43GQ: Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water...

See similar textbooks

Related questions

Q: A0.7547 g sample of nicotine was analyzed and found to consist of 0.5588 g C, 0.06565 g H, and 0.130...

Q: A. В. `NH2 D. STransmittance STransm ttance * 8 2 S 8 3 8 3571.14 3354.51 3189.74 2057.18 69 SELE KR...

Q: The heat of fusion AH, of tetrahydrofuran (c,H,0) is 8.5 kJ/mol. Calculate the change in entropy as ...

A: Hf = 8.5 kJ/ mol T = —108.5 ° c = —108.5 + 273. 15° C = 164.65 k

Q: In Part 1, draw a mechanism for the reaction of butan-1-ol with sodium amide. In the box on the left...

A: Given reaction is : Draw the curved arrow mechanism of the given reaction = ?

Q: Arrange the following substances in decreasing order of strengths: I-, V3+, Sn2+, Co2+, Ag, H2S, Ni,...

Q: Problem 5. Label the acid and base in the following reaction. Show the mechanism of deprotonation re...

Q: Convert the measuring units as indicated. 1. 10560 ft = mi 2. 21120 ft = mi 3. 8800 yd 4. 5 mi = mi ...

A: 13). We know, 1 L = 1000 mL Therefore, (5000 ml)×1 L1000 ml = 5 L 14). We know, 1 kg = 2.205 lbs T...

Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to Ba(IO3)2...

Q: A group of students were trying to experimentally determine the density of an unknown liquid. They d...

A: The data given is, And the volume of the liquid = 5.00 mL.

Q: The equilibrium constant, Kc , for the reaction 2 SO2 (g) + O2 (g) → 2 SO3 (g) is 6.90 x 103 . (a) ...

Q: An acid (HA) dissociates as follows: НА - H* + A minus Arrow should be interpreted as an equilibrium...

Q: What are the shapes of molecules with the various hybrid orbitals?

A: To give: Shapes of molecules with the various hybrid orbitals.

Q: What is the molar solubility of Ag;SO4 in a solution that is 0.0522 M H2SO4? Ksp= 1.40x10^-5 (А) 1.6...

Q: The heaviest stable nucleus is an isotope of A. platinum. D. bismuth. B. gold. E. xenon. C. lead.

Q: Spectroscopy H H co,H FOCH2CH3 CH,CHCH,CI NO2 For each of the above compounds, do the following: 1. ...

Q: A sealed container with a volume of 63.8 mL is filled with a gas at 22°C at 747mmHg. The mass of the...

A: We will use ideal gas equation to find molar mass of gas and then estimate the gas .

Q: What mass of KO, produces 235 g of 0,?

Q: A procedure to synthesize [Co(NH3)5Cl]Cl2 requires 1.5 mol NH3, 0.10 mol H2O2, and 0.60 mol HCl. The...

A: The balanced reaction given is, => Co2+ (aq) + n NH3 (aq) + 3 Cl- (aq) + 0.5 H2O2 (aq) → CoCl3·nN...

Q: An oxide of tungsten (symbol W) is a brown solid. If 8.54 g of the compound contains 7.27 g of tungs...

Q: Unlike most calculations in chemistry, colligative properties uses molality (m) NOT molarity (M). Ho...

Q: A mixture ui gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only. ...

Q: Classify the sigmatropic rearrangement with bracketed numbers.

A: Sigmatropic rearrangement : is a pericyclic intramolecular rearrangement reaction in which one sigma...

Q: For a system in equilibrium, compare and contrast a crude versus a purified product.

A: In any synthesis process, separation and purification of the desired product is one of the essential...

Q: 7.596×10-4 mol of CF4(g) (tetrafluoromethane gas) is generated into a 131.0 mL headspace, at 25.0 °C...

Q: 4. a) Predict the major product of the following reaction: excess b) Provide the mechanism for the r...

A: The mechanism of the following is:

Q: Write the expression for the equilibrium constant for each of the following reactions. Write the pre...

Q: A solution of a weak acid was tested with the following indicators and the colors noted: Methyl Viol...

A: Methyl Violet - violet : Therefore, pH > 1.7 Thymol blue - Yellow : Therefore, pH > 2.8 Methy...

Q: When 75.06 g of metal is submerged completely, the water in a graduated cylinder rise from 40.52 mL ...

Q: How many grams of glucose (C6H12O6) are present in 257.3 mL of a 11.2 M solution?

A: Molarity of a solution can be defined as the number of moles of solute dissolved per litre of soluti...

Q: When methane, CH4, is burned, 50.1 kJ of energy per gram are released. When propane, C3H8, is burned...

A: Answer: In the question, calorific values of propane and methane are given and with the help of that...

Q: Ammonium phosphate ((NH,),PO4) is an important ingredient in many fertilizers. It can be made by rea...

Q: For the following reaction, 5.92 grams of iron are mixed with excess chlorine gas. The reaction ylel...

A: We will calculate theoretical yield using stoichiometric calculations and then find percent yield.

Q: Stoichiometry and Dimensional Analysis Name 1. Grams divided by grams/mole results in units of: 2. G...

A: Since you have posted questions with multiple subparts as per guidelines we can answer only three pe...

Q: 3. Determine the RS configurations of all the chiral centers in the following molecules. ÇOOH CH, CO...

A: Solution is given below in next step

Q: Predict the product of the following reaction. A OH HNO3, H2SO4 CI- B Name the organic product witho...

Q: A 2-ml seawater sample was diluted to 100 mL with distilled water. A 16-ml aliquot of the diluted sa...

A: Given: Volume of sample used = 2 mL. Initial sample is diluted to 100 mL. And Mohr method is used.

Q: Predict the product for the following reaction. 1. Br2/H20 2. NaOH Br Br OH Br HO II II IV II O IV

A: The reaction given is,

Q: 41. What is the molar solubility of Ag2SO4 in a solution that is 0.0522 M H2SO4? Ksp= 1.40x10^-5

Q: A solution is made by dissolving 0.669 mol of nonelectrolyte solute in 793 g of benzene. Calculate t...

A: Answer: Depression in freezing point and elevation in boiling point, both are colligation properties...

Q: Write the nuclear equation for the nuclear reaction in which a nuclei undergoes B decay and changes ...

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: 3) Suggest a synthesis for cach of the following molecules from the starting material indicated and ...

Q: 25.0 ml of 0.600M hypobromous acid, HBrO, is titrated with 0.400M sodium hydroxide, NaOH. Calculate ...

A: Given 25.0 ml of 0.600M hypobromous acid, HBrO, is titrated with 0.400M sodium hydroxide, We have ...

Q: Balance the following chemical reaction and determine the coefficients of H2O and AIK(OH)4, respecti...

A: Balanced chemical equation is the equation in which number of atoms on left hand side and right hand...

Q: For the following reaction, 10.3 grams of propane (C3Hg) are allowed to react with 21.3 grams of oxy...

A: Balanced reaction equation C3H8 + 5O2 ---- > 3CO2 + 4H2O Lets calculate the amount of the CO2 pro...

Q: At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.034 s ...

Q: The molar mass of an unknown compound was determined in three repeat experiments. The molar masses o...

Q: liter iHer of a certin gas Weighs grams at STP the mass of mole of gas is?

Q: Why are reactant and product concentrations constant at equilibrium? Because the chemical reactio...

A: We have to predict the correct statement regarding equilibrium.

Q: Calculate the volume occupied by 122.541 g of water at 22.35 °C.

Q: Calculate the volume occupied by 122.541 g of water at 22.35 °C

A: To find out volume occupied by water, use formula of density and density formula to calculate its vo...

Question

A group of students were trying to experimentally determine the
density of an unknown liquid. They developed a standard technique
for measuring density by recording the mass of a liquid using an
analytical balance. The volume of the liquids were accurately
measured using a serological pipette and was recorded to be 5.00
mL for each trial. The students were able to collect the following data:
LIQUID
Trial 1 (mass in
Trial 2 (mass in
Trial 3 (mass in
Theoretical
SAMPLE
grams)
grams)
grams)
Density
Hexane
3.281
3.284
3.279
0.655 g/ml
Acetone
3.921
3.923
3.947
0.784 g/mL
Ethanol
3.912
3.911
3.913
0.789 g/mL
unknown
3.914
3.911
3.910
Using the calculated experimental average density of the liquid
samples as reference, what is the probable identity of the
unknown?
ethanol
heхane
acetone
cannot be determined

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Thermodynamic Aspects of Phase Transitions

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

Hexane (C6H14, density = 0.766 g/cm3), perfluoro-hexane (C6F14, density = 1.669 g/cm3), and water are immiscible liquids; that is, they do not dissolve in one another. You place 10 mL of each in a graduated cylinder, along with pieces of high-density polyethylene (HDPE, density = 0.97 g/cm3), polyvinyl chloride(PVC, density = 1.36 g/cm3), and Teflon (density = 2.3 g/cm3). None of these common plastics dissolves in these liquids. Describe what you expect to see.
A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90×10−2 M Cu.2.90×10−2 M Cu. Calculate the mass of copper in the Jefferson nickel used to make the first solution.
A group of students were trying to experimentally determine the density of an unknown liquid. They developed a standard technique for measuring density by recording the mass of a liquid using an analytical balance. The volume of the liquids were accurately measured using a serological pipette and was recorded to be 5.00 mL for each trial. The students were able to collect the following data: LIQUID Trial 1 (mass in Trial 2 (mass in Trial 3 (mass in Theoretical SAMPLE grams) grams) grams) Density Hexane 3.281 3.284 3.279 0.655 g/ml Acetone 3.921 3.923 3.947 0.784 g/ml Ethanol 3.912 3.911 3.913 0.789 g/ml unknown 3.914 3.911 3.910 What is the percent error of the density for ethanol? 0.00209% 0.205% 0.837% 8.87%
A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90 x 10-2 M Cu. Calculate the mass of copper in the Jefferson nickel used to make the first solution. Use the diagram to help visualize the dilution process. WE IN GOD TRUST 100 mL LIBERTY 200 5 mL 100 mL cuvette
A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The student takes a 5.00 mL aliquot of the first solution and dilutes it to make 100.00 mL of a second solution. The student places a sample of the second solution in a cuvette for analysis using spectrophotometry. The molarity of the copper solution in the cuvette was determined by spectrophotometric analysis to be 2.90 x 10-2 M Cu. Calculate the mass of copper in the 5 mL Jefferson nickel used to make the first solution. Use the diagram to help visualize the dilution process. 100 mL 100 ml cuvette mass of copper: TRUST
A small amount of resin weighing 4.56g occupies a height of a 10mL graduated cylinder equivalent to one mL. One mL of water was added and the level was read at 1.7 mL. Estimate the density of the resin.
Simplify the following quantities using a unit with an appropriate prefix: (a) 2.5 104 Hz. (b) 8.43 105 mmol. (c) 7.44 104 nm. Show complete solution
The mass of a beaker is 8.342 grams. After 3.00 mL of an organic liquid is pipetted into the beaker, the combined mass of the beaker and the organic liquid is 10.697 grams. From the data, what is the measured density of the organic liquid ?
A student decided to undertake a balance calibration exercise during a lab session involving burette calibration. He found the apparent weight of calcium carbonate in air to be 100 grams and density to be 1.33g/mL. Assume that the standard steel weight used in the calibration has a density of 8.0g/mL and air has a density of 0.0012g/mL. What would be the true mass of the calcium carbonate sample?
CH₂-COOH Citric acid has the formula HO-C-COOH I CH₂-COOH CH2–CDD - Na* + HD-C-CDD- Na CH₂-COO- COO-Na A 25.0 mL sample of a concentrated citrus fruit cordial component (e.g. for lime juice), used in the food & drinks industry, was diluted to 250 mL in a graduated volumetric flask. A 25.0 mL sample of this diluted solution, required, on average, 22.5 mL of a standard 0.100 molar sodium hydroxide solution using phenolphthalein indicator for the titration end-point. A) 0.0075 Assuming all the acid in the cordial was citric acid, calculate the concentration of the acid in g/mL in the original solution. B) 0.576 D and is tribasic acid, forming the tri-sodium salt on complete neutralisation with sodium hydroxide. 1.44 0.00225
1. In your pharmacy you have a balance with a sensitive requirement of 7mg; 10,25,50 and 100ml graduated cylinder; and 1 oz apothecary and 4-ounce apothecary conical cylinder. What is the minimum measurable volume in ml using the graduated cylinder?a. 5b. 20c. 1d. 2
3. (a) Express (@S/ƏT), in terms of measurable properties beginning with the definition of dS and recognizing that dS = dH = CpdT %3!