Q: К. СвН18 3 2 PPM
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Q: True or false? The stronger the interaction between a component and the stationary phase, the faster…
A: stronger the interaction between stationary phase lesser will be the mobility of component in the…
Q: = a homogenous mixture s be made of liquid com
A: (7) What is a pure substance that is only made of the type of atom – (A) Element → Element is a…
Q: In paper chromatography, the stationary phase is made of ---------- and the mobile phae is made of…
A: A paper chromatography variant, two-dimensional chromatography involves using two solvents and…
Q: does the boiling point of liquid solution independent of its composition (yes or no?)
A: To explain: does the boiling point of a liquid solution independent of its composition.
Q: 1. Which balance would result in 0 degrees of freedom? Mixture 100 kg/h x=0.2 kg S/kg Xw=0.8 kg W/kg…
A: Here we have to find that which balance would result in zero degrees of freedom? The structure is…
Q: 200 mg of granular salt is briefly stirred into a glass container of 1/2 liter volume filled with…
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Q: measurement of mass and mole fraction
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Q: 7) Calculate the viscosity (micropoises) of molecular oxygen at 273.2 K and 1 bar. The molecular…
A: From given data's Initially we are calculating mass of molecule of oxygen and then using viscosity…
Q: Miscible liquids from homogeneous mixture when added together. is Toluene miscible with water or…
A: If a liquid is completely soluble in another liquid solution, then it is said to be miscible.
Q: Describe the distillation of partial miscible liquid in terms of phase diagram.
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Q: The standardized basic solution was then used in getting the total acidity of a food sample. Ten…
A: Given: 1 g of KHP is reacting. Volume of NaOH solution used in trial 1 = 52.0 mL = 0.052 L…
Q: Dalton’s Law is not applicable for multicomponent mixtures. a True b False
A: Dalton's Law is not applicable for multicomponent mixtures. The given statement is false.
Q: If a non-polar mobile phase is used in a non-polar stationary phase, the polar components in a…
A: In the given question, the nature of chromatograpy is discussed based on the polarity concept of…
Q: Part I: Freezing point of solvent Time (s) 30 60 90 120 150 180 210 240 270 300 330 360 Temp(CC) 10…
A: Regardless of precision and accuracy, practically all instruments contain some level of uncertainty.…
Q: The mobile phase is also known as: a. Eluate b. Eluant c. Solvent
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Q: Referring to the Al-Si Eutectic diagram discussed on the Phase Diagrams-Lever Rule handout,…
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Q: 1) 1500 kg mixture contains 15% acetone, 75% water and 10% Acetic acid by weight. a) Calculate the…
A: Average molecular weight of a mixture of substances can be calculated as the total mass of all the…
Q: Describe how fractional distillation can better purify a mixture of liquids by discussing a liquid…
A: To achieve a desired degree of separation of a mixture of liquids, the general method involves…
Q: Suppose you want to determine the eutectic melting point of a eutectic mixture of adipic acid…
A: Literature melting point of Adipic acid = 153˚C Literature melting point of Salicylic acid = 158˚C
Q: hromatography is a useful spectroscopic method for separating based on differences in the affinity…
A: The statement is correct True(A)- is the correct option
Q: Question 7 In a two component mixture assuming it forms a single phase, how many variable can be…
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Q: You are making orange soda from an orange flavor emulsion. The density of the orange oil is 0.85…
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Q: The solvent in a collodial system is also known as the [?] phase. dispersion dispersed particle…
A: Colloidal system is heterogeneous and contains two phases : dispersed phase and dispersion medium.
Q: following cooling curve between which two points is the pure solvent becoming frozen? Temperature…
A: Freezing point is the temperature at which the transition of phase takes place from liquid to solid…
Q: In a two component mixture assuming it forms a single phase, how many variable can be considered? O…
A: Given, No. of componene C= 2 No. of phase P=1 No. of variables = ?
Q: A sample of naphthalene is contamined with a small amount of anthracene. The melting point would be…
A: Melting point the temperature where the solid starts to melt. Melting point is measure in oC or oF.…
Q: elect the phenomenon that is being described by each statement a. Breaking b. Agglomeration c.…
A: 1. Which observes the clustering of individual dispersed droplets? - Answer - f. Aggregation 2.…
Q: A- preparation of approximately (0.1N) HCL 1. Calculate the normality of the concentrated HCL. Sp.g…
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Q: Graph of temperature versus fraction number for the distilled liquid and show the extrapolation of…
A: So, here, we need to plot the graph of temperature versus fraction number.
Q: explain how mixed melting point determination can be used to identify a solid compound.
A: A mixed melting point is a way to "estimate" identity of an unknown substance. If you have two solid…
Q: phase diagram of å mixture a
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Q: This refers to a point wherein both liquid phases have the same composition. Hence, extraction is…
A: Plait Point is defined as the intersection of raffinate-phase and extract-phase boundary curves. At…
Q: atch the following: Freezing point depression The effect of supercooling Freezing point of pure…
A: Let us discuss the phase diagram first and then find out the respective points.
Q: Topic: Paper Chromatography - Separation of Food Dyes A student accidentally started the…
A: Given that, Paper chromatography separation
Q: CALCULATIONS: 1. Prepare a Temperature vs Time cooling curve for each of the two trials performed…
A: Solution: We know the stearic acid a fatty acid with IUPAC name octadecanoic acid. Its melting point…
Q: a) An alcohol solution was prepared by adding enough water to 35. 0 mL of the alcohol to make a…
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Q: Basis for sublimation Nernst Distribution Law differences in solubilities of a solid and an impurity…
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Q: 16. Ethyl alcohol is diffusing into an alcohol-water solution at 18°C. The concentration of alcohol…
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Q: 100 200 80 Solubility limit 150 60 Liquid solution (syrup) Liquid solution 40 solid 100 sugar 20 50…
A: Introduction: Phase diagram shows the physical state of a substance at different temperature and…
Q: Which of the following is true about simple distillation? Choose all that apply. O Uses a column…
A: The correct options are:
Q: Convert the following mass by volume concentrations to volume mixing ratios at STP: а. 32 ug m-3 NO2…
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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: This refers to a point wherein both liquid phases have the same composition. Hence, extraction is…
A: We have to tell the name of the point at which both liquid phase have the same composition. Hence,…
Q: Describe principles of separation by capillary isotachophoresis (CI) using a diagram
A: Isotachophoresis is a technique used for selective separation and concentration of ionic analytes.…
Q: Melting point of a compound is lowered when an impurity is introduced. However 1:1 mixture of A and…
A: Solution We know That This is mostly due to the Hydrogen - Fluorine…
Q: An ideal property of a solvent to be suitable for recrystallization of a solid sample is: Group of…
A: In recrystallization process an impure solid compound is dissolved (the impurities must also be…
Q: Cooling Curve/ Freezing Point Determination The solution must be continuously stirred while heating…
A: The solution must be continuously stirred while heating and cooling it. What will happen if it's not…
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- a- Separation is essential in chemical analysis especially when we are dealing with complexmixture of chemical species. Name 1 separation technique based on basis of operation asbelow. Basis of operation Techniquei) Sizeii) Mass and densityiii) Change in physical state(c) Explain how ab initio method is different from semiempirical method.Is it necessary to know [E]T to determine (a) KM, (b) Vmax, or (c) kcat?
- An analytical determination for manganese in an aqueous solution on gives thefollowing replicate measurements in ppm as 12.1, 12.3, 12.2, 12.2, 12.4, 12.3, 12.2, 12.4,12.2, and 12.5. Determine the following;a) The range of the datab) The meanc) Mediand) Standard deviatione) Variancef) Relative standard deviation RSD (ppt)A 0.1 M solution of acid was used to titrate 10 ml of 0.1 M solution of alkali and thefollowing volumes of acid were recorded: 9.88 10.18 10.23 10.39 10.21 Calculate the 95% confidence limits of the mean and use them to decide whetherthere is any evidence of systematic error.Q2: (A) Sketch the following Miller indices: 1.[102] 2. (2110) 3.(312)
- What is the value of [S] with v = 0.5Vmax?N X 21/FA-C x Jah Desmos Lo (3) X : OWLV2 X Significa X Significa X EScientifi X O RedCard X A east.cengagenow.com/ilrn/takeAssignment/takeCXPCompliantActivity.do?locator=Dassignment-take CHAPTER 1A - LET'S REVIEW: THE TOOLS OF QUANTITATIVE CHEMISTRY Study O Previous Page 5 of 5 NetO St The aluminum in a package containing 70. ft“ of kitchen foil weighs approximately 12 ounces. Aluminum has a density of 2.70 g/cm. What is the approximate thickness aluminum foil in millimeters? (1 ounce = 28.4 g, 1 ft = 12 in, 1 in = 2.54 cm) Thickness = mm 73°F a O Type here to searchIdentify and provide an explanation of the differencesbetween homogeneous and heterogeneous sampling in the context of samplingmethods.
- identify variance (f), component/s (C), and phase/s (P) for each systemWhen we analyze the Uniformity of Dosage Units (content uniformity) in compressed tablets during PPQ, should we use the same or different methodology and acceptance criteria as those described in respective USP monograph (905) that is used for CU evaluation of routine product batches? Please explain.Figure 1 shows normal calibration of benzene, meanwhile Figure 2 shows calibration of benzene using internal standard method. a) State TWO (2) differences between those two calibration curves. b) State THREE (3) limitations of internal standardization method in analytical chemistry.