Discussion 1- If you were given a known substance for the melting point determination how could you prove it to be the specific compound and not another compound with the same melting point ?

Q: Using the radial relationship, indicate which crystal structure is predicted for TlCl. Yes the Ionic…

A: Given data in question -  1) Ionic radii of (Tl+) = 164 pm. 2) Ionic radii of Cl- = 181 pm. We…

Q: How do we keep relative supersaturation low by controlling temperature?   temperature should be…

A: Relative supersaturation is ratio os supersaturation for improving the relative supersaturation we…

Q: One liter of hot water will dissolve 83 g of compound Z.  One liter of cold water will dissolve 12 g…

A: Undissolved amount = total amount - dissolved amount

Q: You are given a 1:1 (by weight) solid mixture of vitamin C and vitamin A, and you are going to use…

A: A 1:1 solid mixture of vitamin C and Vitamin A is to be separated from one another by liquid-liquid…

Q: 1) A tetrapeptide is abbreviated as SKDR. Write the name of the amino acid at the N-terminal end.…

A: #1. We are given SKDR as the tetrapeptide unit. Here S = Serine, K = Lysine, D = Aspartic acid, R =…

Q: If you were given a known substance for the melting point determination how could you prove it to…

A: Given: Melting point determination To find: How can we prove that it is a specific compound and not…

Q: Using their Ksp values, find the solubility of CaCO3, Ba3(PO4)2 and PbSO4 in Ksp(CaCO3) = 8.7 x 10-9…

A: The objective of the question is to calculate the solubility of CaCO3, Ba3(PO4)2 and PbSO4 using…

Q: how you would change your procedures to obtain the most efficient method for testing your pipetting.…

A: Pipetting is a important part to get accuracy of a analysis.

Q: Write which statement is true in every number. 1.)Statement 1: Carbon dioxide is a polar molecule…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solve first question…

Q: 1) During a melting point determination, the heating is constant and causes the temperature of the…

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

Q: Caffeine has a pure melting point listed as 235-238 °C. Several students isolated a white solid,…

A:

Q: 3. What do you notice about the compounds under the melting point çolumn that have negative values?

A: Ionic bond is more strong. So, more heat required to boil or melt. Where as covalent bond are not…

Q: Three isomeric compounds with nearly identical boiling points were produced by a CH337 student and…

A: Three compounds are obtained by the chromatogram having peaks of different intensities. All three of…

Q: In which option is the order showing whether the questions given below are true or false? () If the…

A: The statement first is incorrect because complete purification through distillation is not possible…

Q: A pure white crystalline compound was found to melt at 112.5 C when taken on a melting point…

A: As per the guideline, Since you have asked multiple questions, we have solved the first question for…

Q: How could we verify that two different samples, with the same melting points, are the same compound?…

A: Melting point of pure compound is always sharp or have very narrow range  Melting point of mixture…

Q: If the Ksp of NaCl is experimentally determined to be 54.2, then what is the concentration of Na+…

A: Suppose, the solubility of NaCl is S M We know that Ksp of the compound XaYb = aabbS(a+b) (When…

Q: i) What two criteria should you ensure about your melting point sample before you fill the melting…

A: Since you have posted multiple questions, but we will solve first question for you. For remaining…

Q: You have an unknown with an observed melting point of 123-126"C. Which of the following standards…

A:

Q: Two test tubes contain the compounds having the same melting point .Using their MP's how would you…

A: ANSWERE IS DISCUDDED BELOW :

Q: How many distinct type of H atoms (based on symmetric equivalence/nonequivalence) are present in the…

A:

Q: Question 7 Which of the following indicates that a sample was heated too rapidly during melting…

A: A question based on properties of solids that is to be accomplished.

Q: Determine the indices of the crystallographic direction shown below. Express in proper notation.

A:

Q: MCHM OH MCHM exists as two geometric isomers, cis and trans. Draw both isomers below using dashes…

A: Cis and trans isomerism: The stereoisomerism in which the two compounds have same molecular formula,…

Q: Chemistry match the following in multiple ways 59. Column- Column-II OCT (P) 2 Geometrical isomers…

A: When ring contain more than 8 carbon in ring then it can show isomerism

Q: The melting point of the sample assigned to your group matches the melting point of a sample…

A:

Q: 4.Magnetic property Ir°: (Xe) 6s² 4f14 5d7 [Ir(NO2)613- [IrBr3- 5. Both [Ni(CN)4]2- and Pt(CN)4]²-…

A: Since you have posted a question with multiple sub-parts, we will solve first three (4, 5 and 6)…

Q: The measured melting point for each of two samples was 89-91 °C, yet a 1:1 mixture of the two had a…

A: Given that Two separate samples with melting points in range 89-91 °C. 1:1 mixture of these samples…

Q: In the event that you were given a known chemical for the purpose of determining the melting point,…

A: The temperature at which the solid starts to melt and form a liquid is known as the melting point.

Q: 9. Alumina coated TLC plate and a non-polar mobile phase were used to separate A, Band C substances.…

A:

Q: 1) What compound should the student run a mixed melting point with? 2) If the student ran a mixed…

A: As per the rules the first three sub-parts are being answered.

Q: I need the answers for the liquid and asymmetrical

A: The table is filled below:

Q: Unknown A and know a W and C all melt at 116-117 °C using melting point experimentation describe how…

A: Melting point is defined as the temperature at which a substance melts or we can say the solid and…

Q: True or false and why is false 1   There are 2 major classes of keratins: alpha keratins (found in…

A: 1) True: alpha keratin found in most mammals , claw , hairs nails etc , while beta keratin found in…

Q: 4. When performing a melting point on solid compound using a melting point apparatus, two melting…

A:

Q: When taking a melting point, only a very small sample size is needed to go into the capillary. Too…

A: Melting point is the temperature at which the solid substance changes to the liquid state upon…

Q: Which would be the best way to determine the melting point of a compound? Why?   Slowly run two…

A: Since the melting point is a singular, measurable, precise point on the thermometer scale where the…

Q: Determine the identity of an unknown white powder based on the following information: Flame Test:…

A: Based on the observations made in the different analytical tests, the unknown white powder can be…

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.