How do I calculate the standard deviation of background (baseline) on the UV-Vis absorbance measurement?

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Q: Calculate the pH of a solution which has a pOH of 7.2 (standard conditions)

A: Calculate the pH if pOH = 7.2

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Q: Paraphrasing ewriting Tool Car note Pirate Ship BLACKBOARD [Review Topics] [References) Indicate whe...

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Q: Complete the following sentence by typing a number in each of the answer boxes. HO. Not considering ...

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Q: Calculate the equilibrium concentrations of A (in M), if only C is present initially at a concentrat...

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Q: What are the signs for q and w if a system absorbs 180 J of heat energy while expanding against cons...

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a the...

Q: Select the compound that shows an IR absorption near but just above 3000 cm".

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Q: Plastic sulfur is composed of a) S8 molecules c) S2 dimers O b) Sx polymers

A: The plastic sulfur is also called as x-sulfur.

Q: determine the number of moles of 76.57 atoms of Pu

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Q: CH3 H2SO4 H2C=C + H3C-OH CH3

A: The  given reaction is of 2-metylprop-1-ene with methanol in presence of H2SO4 . THE Presence of H2S...

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Q: The rate of a certain reaction is given by the following rate law: rate=k[H,] Use this information t...

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Q: H,C, CH, CH,

A: Alpha protons of a ketone are deprotonated by base.  Color change occurs where there is change in co...

Q: The rate constant k for a certain reaction is measured at two different temperatures: temperature k ...

A: Given: We have to calculate the activation energy .

Q: Use the dropdown menus in the sentence below to indicate if Ha and Hb within the structure are homot...

A: In a given structure relation between two hydrogen atoms can be determined by replacing these two hy...

Q: 2. Consider the following potential energy diagram for a reversible reaction: 40 30 PE ) 20 10 Progr...

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Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate cons...

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Q: Complete the table below by deciding whether a precipitate forms when aqueous formula in the last co...

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Q: 2. Would you predict more Zn or Al to dissolve in Cu? Justify your answer. Atomic Crystal Structure ...

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Q: What is the splitting for Hc in the following molecule? Hc CI Ho. HE H. H. H. HA HB HF HG HH нн н н ...

A: The splitting pattern for a proton in NMR spectrum can be calculated using the formula n+1. Where n ...

Q: Choose the most accurate descriptions about quantitative analysis using atomic absorption spectropho...

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Q: consider a solution which is prepared by dissolving 5.00 grams of a hypothetical compound (molar mas...

A: Given: Mass of solute = 5 g Mass of solvent = 250 g The molar mass of solute = 50 g/mol The molar m...

Q: What is matter

A: Define the matter ? 

Q: A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pr...

A: Given :-  vapor pressure of solution = 248 torr  vapor pressure of pure hexane = 151 torr  vapor pre...

Q: Describe the sample properties that would be suitable for; i) Gas chromatography (GC) analysis ii) H...

A: GS and HPLC are the techniques to separate compounds from mixtures .These are nalytical methods of c...

Q: Compute for what is asked in the following problems. Show your complete solution and highlight or en...

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Q: All the following statements are true about sigma bond EXCE O The electron density is high in the re...

A: Sigma bond : It is the strongest covalent bond formed by head on overlapping of atomic orbitals.

Q: Complete the following nuclear equation by identifying X. (Enter the complete nuclear equation.)   ...

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Q: As what type of molecules would you classify ceramide? Explain your reasoning

A: Here we have to classify ceramide molecule according to their structure.

Q: The equilibrium constant for 2C 3A + B is K = 0.1 Determine the equilibrium constant for 9A + 3B → 6...

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Q: What is the test to identify the haloalkane functional group? explain

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Q: determine the number of atoms of 47.56g of Pa

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Q: What happens as the two atoms approach each other ? (a) Each electron is attracted by the nucleus of...

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Q: Select to Draw Br2 Br Br P Type here to search

A: It is a reaction of alkene with Br2 where formation cyclic bromonium ion takes place to give dibromi...

Q: Quntien 1 Using pka valves, ladicate the position of equilibeiam for eencticns aband e.

A: Pka is -log(Ka); Higher Ka,lower Pka. Ka will high when dissociation is easy.

Q: You use 500.0g of a solid to prepare a solution that has a concentration of 7.40% by mass. What is t...

A: Given: Mass of solid solvent = 500.0 g. Concentration of solid in %(m/m) = 7.40 %  

Q: Column resolution is an indicator to identify the selectivities and efficiencies of the column abili...

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Q: Carbon disulfide and oxygen react to form carbon dioxide and sulfur dioxide, like this: cs,(e)+30,(2...

A: The given reaction:  CS2(g) + 3O2(g) --------> CO2(g) + SO2(g)    K = (Pco2)*(Pso2)/(Pcs2)*(Po2)3...

Q: Given the balanced equation: 2H2(g) + O2(g) --> 2H2O(l) How many grams of H2O are formed if 9.00 mol...

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Q: Conduct the diet coke and mentos balloon experiment to fill in the chart. Testable question: Does t...

A: Yes, the circumference of balloon is directly proportional to the quantity of Mentos with  mixed wit...

Q: Select to Draw OsO4 (catalytic) NMO OH OH

A: Write reactant of the given product---

Q: Carbon dioxide and water react to form methane and oxygen, like this: CO,(9)+2H,O(9) - CH(g)+20;(9) ...

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Q: A9CN + CN¯ → [Ag(CN)2]¯

A: Oxidizing agent- Species which has tendencies to get reduced by gaining electrons.  Reducing agent- ...

Q: . Reversed phase HPLC refers to the condition of stationary phase and a mobile phase of separation. ...

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Q: Antinomy, Sb, has 2 isotopes and an atomic weight of 121.75 amu. The isotope anitimony-121 has a nat...

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Q: construct and show the structural formula of Glucose, Fructose, Ammonia, Ethanol, Acetic Acid

A: Draw and write structure formula of the given --

Q: Chemistry 3. Draw the structure of the product that is formed when we mix 3-methyl-2-pentene with Br...

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Q: Which of the following statements is true for ideal gases, but is not always true for real gases?   ...

A: The 2nd and 4th options are true for ideal gases but not always for real gases . That are :  There ...