Explain temperature programming for gas chromatography and what its benefits.

Q: What is one effective way to calibrate a thermometer?

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Q: Gas chromatography would NOT be appropriate to use for a sample that is decomposed by heat a mixture…

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Q: solution stock Concentration (mL) (mL) (HM) 0.100 100.00 Q2a 0.200 100.00 0.400 100.00 4 0.800…

A: Dilution refers to decreasing the concentration of solute in a solution. This is done by adding…

Q: measurement of volume capacity of volumetric flask: please help me fill in the blanks Temperature of…

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Q: Consider the following chromatogram.     The early eluting peaks and later eluting peaks exhibit…

A: Students will most likely not think of solutions on their own. Remind them of variables that…

Q: To analyze the residual toxins and sugar content of a sample of a fruit, propose and discuss the…

A: When two more substances exist in a solution with definite proportions, it leads to the formation of…

Q: [Ka1 = 5.4 x 10-6; Ka2 = 5.8 x 10-10 %3D OA.0.10 M OB. 5.8 x 10-6 M OC21x 10-5 M OD.5.4 x 10-10M O…

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Q: chromatography

A: chromatography is a process in which the mixture is separated.  In this process we dissolve the…

Q: Name three common uses of High Performance Liquid Chromatography (HPLC) in the laboratory.

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Q: Assignment: This is an individual activity. After studying the lesson and watching all the videos,…

A: 1.  a) Direct weighing means an objects is placed directly on balance and we take reading.…

Q: It is a type of mixture with particles evenly scattered in a dispersed medium without settling down

A: Mixture is the  combination of  two substance.  There are  two types- 1) Homogeneous  mixture.  2)…

Q: hardness is 25 mg/L and permanent calcium sulphate hardness 25 5. A sample of water was analyzed and…

A: Hard water is one that does not forms lather with soap. It contains soluble salts of Ca2+ and Mg2+.

Q: These technique are time consuming, costly and frequently needcomplementary information about sizing…

A: We will determine which techniques are time consuming costly and frequently need complementary…

Q: In analytical chemistry, what is a standard method? Include any sources you used to answer this…

A: Solution:  Definition of Standard method- In analytical chemistry for quantitative analysis,…

Q: Which of the following is paper chromatography NOT useful for? a) Determine the identity of a…

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Q: Arrange the steps of gravimetric analysis in chronological order

A: Gravimetric analysis is a quantitative method of the measurement of the substance on basis of their…

Q: What is the importance of calibrating analytical balances?

A: Calibration of analytical balance is important.

Q: Which technique separates components of amixture based on the size of its particles? A. filtration…

A: The technique which separates components of mixture based on particle size has to be given.

Q: Group

A: Dear student I have given answer to your question in the image format.

Q: Crude Substance Sublimate Wt. container + sample, g Wt. container, g Wt. sample, g 23.5 22.2 18.4…

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Q: What volume of 95.0% alcohol by weight (density: 0.809g/cm^3) must be used to prepare150 cm^3 of…

A: Given, Density of 95.0% alcohol by weight = 0.809 g/cm3 Density of 30.0% alcohol by weight =…

Q: Select which of the following is not a feature of carrier gas used in gas chromatography? A. It must…

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Q: Sapling Learning 3.18 V Voltmeter Mg Ag KNO, salt bridge 1.0 M Mg" 1.0 MAg Zn Cu

A: By writing half reaction of cell according to given cell.

Q: What is the difference between Class A and Class B glassware? Which Class (A or B) would be better…

A: The glasswares are the apparatus that is used in laboratories for measurements and storage.

Q: 2. What total dilution would you need to produce a 2 mM sample from a 100 mM stock solution?

A: M1 x V1 = M2 x V2

Q: what is the significance of gravimetry analysis?

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Q: Gas Chromatography can have which of the following stationery phases and/or mobile phases: O A…

A: In gas chromatography there are two phases , stationary phase and mobile phase .  Mobile phase is…

Q: Why do we need to press “tare” when weighing in an analytical balance?

A: Solution Analytical balances square measure used for terribly correct, quantitative measurements of…

Q: Which of the following is used as a carrier gas in gas chromatography? A) Helium Carbon dioxide…

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Q: What percent of the total mass of mixture of solids (Initial) was recovered through the separation…

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Q: what steps can be taken to improve the quality of analytical results. explain briefly.

A: Quality of measurements made in chemistry and other areas is an importants issuue in today's world…

Q: 4.A student carried out a simple distillation on a compound known to boil at 124°C and measured a…

A: so as there is difference between actual boiling point and measured boiling point , there may be…

Q: Can paper chromatographt be used to separate and identify very volatile substances? Explain.

A: Paper chromatography is a technique used to separate components based on the differential migration…

Q: Distinguish between: a. analysis (analyze) & determination (determine) b. qualitative & quantitative…

A: Distinguish between: a. analysis (analyze) & determination (determine)b. qualitative &…

Q: You were tasked to separate the components of a mixture containing silica, sodium chloride and…

A: We are given a mixture of silica, sodium chloride, and charcoal, and we have to separate each…

Q: 1. Develop a detailed separation scheme for the separation and determination of the percent…

A: A mixture is a combination of two or more individual substances that may have uniform composition or…

Q: Given below is a diagram of separation of two components of a mixture in a chromatographic column.…

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Q: Why high performance liquid chromatography is an important  technique in the fields of chemistry…

A: MAIN USE OF HIGH PERFORMANCE LIQUID CHROMATOGRAPHY ARE IDENTIFYING  ,QUANTITATIVELY AND PURIFYING…

Q: Why is it important to always let hot objects cool before weighing? Convection currents that…

A: A plastic weigh boat or weighing paper may be damaged by a very hot sample. Usinh hot object…

Q: List and define the indicators that are used to assess the performance of a specific analytical…

A: indicator PH RANGE COLOUR IN ACID COLOUR IN BASE METHYL ORANGE 3.1-4.4 RED ORANGE METHYL YELLOW…

Q: Describe a chromatogram and explain what type of information it contains.

A: Chemistry is a vast field of science. It involves dealing with various elements and their compounds…

Q: what are the important hazards to know in gravimetric analysis? (please include pictures)

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Q: What is the fundamental difference between gravimetric and volumetric analysis? Use the editor to…

A: The difference between gravimetric and volumetric Analysis is given below ----

Q: what is chromatography?

A: Chromatography is a method which helps to separate and analyze mixtures of compounds.

Q: True or False? Why? In ion chromatography a single column containing ion exchange resin allows…

A: Now a days ion exchange chromatograpy is one of the best tool used in various field of science for…

Q: A quality-control laboratory analyzes a product mixture us-ing gas-liquid chromatography. The…

A: Gas chromatography is a typical method of chromatography used in analytical chemistry to isolate and…

Q: Which of the following methods is not an appropriate method for purifying a solid under normal…

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Q: density of irregular solid mass of irregular solid 8.299 g initial volume 48 mL final volume 55…

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