explain how mixed melting point determination can be used to identify a solid compound.

Q: Why would industry prefer to purify solids by sublimation or zone refining rather than…

A: The advantage of sublimation for purification process are i) Minimum amount of product is lost. ii)…

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

A: Given: Melting point determination To find: To prove that the the given compound is a specific…

Q: What measures can be taken to decrease relative supersaturation during precipitation? Explain.

A: Relative Supersaturation It is given by Q-SS where q is the concentration of the reactant S is the…

Q: a.) vapor phase composition S 92 F

A:

Q: Describe chromatography. Include the following words: Physical change, Intermolecular Forces,…

A: physical change: A change in the physical condition and  properties of substance that is change.…

Q: An analytical separation technique based on the differences in volatility of compounds. A.…

A:

Q: Describe how the melting point range was determined

A: Melting point range is the range of temperature where substance actually melts .

Q: see the graph and determine/give the ff: a. 1 eutectic point (temp and composition) b. 1…

A: Solutions- The given graph is phase diagram of Mg2SiO4 compound.

Q: What property of water makes it a good medium for heat exchange in calorimetry? A) High liquid…

A:

Q: Draw (illustrate) a hypothetical phase diagram incorporating the following salient features: a.…

A: The diagrammatic representation that provides information about the physical parameters such as…

Q: Co-Perciptation

A: In this question we have to explain the following types of Co-Perciptation 1- Surface Adorption    2…

Q: Match the mixture separation techniques with the description that applies to them most accurately…

A: Chromatography can be defined as an analytical technique used for the separation of mixture of…

Q: Si crystalizes into a diamond crystal structure with lattice constant a = 0.543\: nma=0.543nm.…

A: Given:Si crystalizes into a diamond crystalstructure with lattice constant a=0.543 nmwe have to…

Q: is the study of fundamental principles of nanostructures between bulk and atomic properties.

A: Nanoscience: The study of fundamental principles of nanostructures between bulk and atomic…

Q: what is liquid junction potential ?

A: When two different concentrations of electrolyte solution come in contact forms liquid junction…

Q: Please explain to me what is the valency factor (n-factor) of Potassium Bipthalate (C8H5KO4)

A: Potassium Bipthalate - It is also known as potassium hydrogen phthalate. It is the monosodium salt…

Q: Which separation technique is based on the affinity of the components with the stationary and moblie…

A: We use various methods to separate component parts from a mixture. By Separation  techniques…

Q: If we have more than one substance with a large difference in melting point and we want to prepare a…

A: Film is a coating substance with different materials.

Q: Melting gold with other metals makes 10-karat gold. Which term best describes 10-karat gold?

A: 10 karat gold is an alloy . Alloy are the homogeneous mixture. Since alloy contain more than one…

Q: Solution:              conductivity(MS) H2O distelled      95 H2O tap               1236 NH3…

A: The given molecules are, H2O distilled, H2O tap water, NH3

Q: The following tests are used for control of organic impurities in organic medicinal substances,…

A: Option B is correct.

Q: substance classification (check all that apply) 1000X 10,000,000X Ogas Oliquid normal Osolid…

A: Sketch of a substance.

Q: Variable electrovalency is shown by which block elements?

A: The distribution of electrons in atomic or molecular orbitals of an atom or of a molecule is known…

Q: Write TWO (2) functions of XRF in materials characterisation. (b) Appraise the sample preparation…

A: Hello. Since the question consists of multiple sub-parts, the first three sub-parts shall be solved…

Q: Ceramics used as abrasives must be hard and tough and be able to withstand high temperatures that…

A: We have given that  Ceramics used as abrasives must be hard and tough and be able to withstand high…

Q: During the microscale boiling-point determination  of an unknown liquid, heating was discontinued at…

A: After sealing the bell it is turned upside down and placed in a capillary tube having the liquid…

Q: What happens if the solvent concentration falls below that of the silica stationary phase? What is…

A: The chromatography technique consists of two phases mobile and stationary phase .Mobile phase is the…

Q: Identify the type of bonding that occurs in each solution and determine whether they are conductive…

A: Chemical bonds can be either ionic or covalent based on whether the electrons are completely…

Q: Please provide step-by-step anwser What is the probable lattice type of crystalline substances that…

A: Miller Indices (hkl) is a set of numbers that calculate the intercept of the crystallographic axes…

Q: Describe the differences between a nanopowder image characterized by scanning electron microscopy…

A: Answer - According to the question - Given - All light microscopes today are compound microscopes,…

Q: The best type of stationary phase for separation of negative ions is alumina C18/silica gel…

A: Negative ions are negatively charged ions. Negatively charged ions binds to only positively charged…

Q: What patterns do you notice within the groups of salts in Table ? (A group is defi ned as having the…

A: Nearest neighbor separation means in the crystal the neighboring atom attached with Sodium, Na.

Q: Please use phase diagram to explain why micro-segregation and macro-segregation happen during…

A:

Q: Nanomaterials are substances with at least one dimension between a. 1 and 10 pm b. 1 and 100 pm…

A: Nanomaterials exist in nature and can be produced by using  various products such as carbon or…

Q: How does the rate of temperature elevation influence the results of the melting point determination?

A: To find :The effect of rate of temperature elevation on melting point. Solution : As we know, the…

Q: Distinguish between Chemiluminescence and Triboluminescence and give an  example of each.

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Q: Explain each in 5 sentences  Paper Chromatography- Thin layer Chromatography- Column…

A: Chromatography is used to seprate the mixture and to purify the compounds. First three given are the…

Q: More polar molecules move more slowly through silica than less polar molecules. Why is silica gel…

A: In methyl orange is polar since it contains the ionic part of the molecule (SO3-Na+). However, in…

Q: 7. (a) Discuss the viscosity method for calculating the molecular mass of polymers.

A: To discuss: viscosity method for calculating the MW of polymers.

Q: h) You complete the effective drying of the needlelike crystals and now you will take a melting…

A: The temperature at which solid substance is converted to liquid substance is known as melting point.

Q: Nanoparticles were synthesized in various solvents and were analyzed with XRD, its diffractograms…

A: The XRD graph shows 2 distinct structures at various 2(theta) values- tetragonal and monoclinic. The…

Q: Stationary phase/s that can be used for both HILIC and NPLC Diol Cyano Unmodified silica…

A:

Q: 3) What effects on the measured melting point would you expect in each of che following cases: a)…

A: Melting point of solid is a temperature at which solid and liquid can exist in equilibrium.  To get…