Melting PointHow will you collect data for this experiment?virtuallyMelting Point Measurement and CorrectionApproximate melting point of unknown compound:85 – 96 °CSelect an appropriate melting point standard with a melting point closest to the approximate melting point of your unknowncompound.Choose the standard:A. 98 – 100 °CSavedAB. 160 – 162 °CC. 252 - 254 °CMeasured absolute melting point of the standard:96 - 98 °CMeasured absolute melting point of the unknown compound:90 - 94 °CCompare the reported and experimental melting points of the standard to determine if any corrections need be done for your unknownmelting point.Correction (°C):92 - 96Saved Is the unknown compound considered pure?Choose...Explain your answer.NormalBII|UX2 X2| >fx |How can you obtain a more accurate melting point with a smaller range for the unknown compound?SavedNormalBII|UX2| X² |→fx |Where should you dispose of capillary tubes when you have finished determining melting points?NormalBII|UX2| X² | →fx | 8ト

Melting point analysis provides information about purity of sample .A pure substance with impurities…

Is the unknown compound considered pure? Choose... Explain your answer. Normal BIIIU X2 | X² | → fx | ® I D e How can you obtain a more accurate melting point with a smaller range for the unknown compound? Saved Normal BIIU X X ELEE fx| D e Where should you dispose of capillary tubes when you have finished determining melting points? Normal BIIU X2 X EE = fr| D e

Is the unknown compound considered pure? Choose... Explain your answer. Normal BIIIU X2 | X² | → fx | ® I D e How can you obtain a more accurate melting point with a smaller range for the unknown compound? Saved Normal BIIU X X ELEE fx| D e Where should you dispose of capillary tubes when you have finished determining melting points? Normal BIIU X2 X EE = fr| D e

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

Similar questions

Basis for sublimation* Nernst Distribution Law differences in solubilities of a solid and an impurity in a given solvent differential migration, that is, migration of components of a mixture through a stationary phase relatively high vapor pressure of a solid
Al(s) + ClO (aq) A10, (aq) + Cl(aq) Express your answer as a lonic equation. Identify all of the phases in your answer.
What is the strength of the ionic interactions between an ion with 1 positive charges and an ion with 1 negative charges, when the distance between them is 24.0 nanometers and the solvent is water, at 25°C with a dielectric constant of 78.57 Calculate answer to 7 decimal places: NB! the comma seperates thousands, the dot is for decimals Do NOT specify units in your answer
Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as an antimalarial agent. When 1.90 g of quinine is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 4.88 °C. Look up the freezing point and Kf constant for cyclohexane in the Colligative Constants table. Calculate the molar mass of quinine. molar mass: g/mol
Describe the Brownian Motion?
1- what if B = benzene, A = methanol, what are the dominant interactions between A and B, B and B and A and A and what is their dependence on the distance of the molecules? What can you follow about the strength of these interactions from the phase diagram? 2- Indicate in the figure which limiting cases you can identify. Name the limiting cases and write down the equations for it. Explain in which situations they hold. 3- You set up a solution of 70 mole % A and 30 mole % B. Calculate from the diagram of A in the gas phase. What does this indicate for a possible separation of A and B and how could you get that?
In addition to filling in the blanks below, show all of your work for this problem on paper for later upload. Calculate the molality of a 25.0% by mass aqueous solution of Ca(NO3)2. Enter your value in the first box and an appropriate unit of measure in the second box.
A solution contains a mixture of pentane and hexane at room temperature. The solution has a total vapour pressure of 247 torr . At room temperature the vapour pressure of pure pentane is 425 torr and the vapour pressure of pure hexane is 151 torr . What is the mole fraction of hexane? Hint: remember that χsolute + χsolvent = 1 Express your answer to three significant figures.
Q1. A suspension of colloidal particles in water (temperature 25°C and viscosity 8.9x104 Ns m2) shows a particle concentration of 10¹1 per cm³. Calculate the half time to diffusion controlled coagulation.
Give detailed Solution??
10 mL of a liquid composed only of carbon and hydrogen is added to a separatory funnel containing 100 mL of water and 100 mL of hexane, an organic solvent. After shaking, the liquids are transferred to graduated cylinders. What are the volumes of the aqueous and organic layers? Aqueous 105 mL; organic 105 mL Aqueous 100 mL; organic 110 mL Aqueous 110 mL; organic 100 mL Cannot be determined O O O O