How does the adsorptive characteristic of filter papers affect the concentrations involving heavy metal ions analysis? How does quality control procedures such as reagents blanks, fortified blanks and spikes help correct analytical methods such as the filter paper analysis for heavy metals?

Q: 23. Nitrosyl chloride, NOCI, decomposes to NO and Cl2. 2NOCI(8) – 2NO(8) + Cl2(8) Determine the rate...

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Q: Identify the suitable reagents for the following: Br

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Q: A mixture contains Mg(NO3)2 and KBr. A 1.85 g sample of this mixture is dissolved in water and an ex...

A: Given,  The mass of mixture of Mg(NO3)2 and KBr = 1.85 g. This mixture is dissolved in water and an ...

Q: b.) Draw the major product for the following reaction. heat c.) Please draw the anticipated product ...

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Q: polystysene (styrofoam cue) PerkinElmer Spectrum IR Version 10 6.0 Tuesday March 22, 2022 6:52 PM Ad...

A: IR Spectroscopy tells us about the functional  group present  in the molecules. 

Q: Mn- (aq) BiO, (s) Bi-(aq) MnO, (aq) (acidic solution)

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Q: Calculate the potential for each cell as written at 25 °C. Indicate whether the metal electrode in t...

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Q: Determine the products in the electrolysis of molten Nil2(ac) and how much voltage is required

A: To write the electrolysis reaction of NiI2(s) and to calculate the voltage required.

Q: A welder’s acetylene tank has a volume of 75.0 L. It is stored at a temperature of 23.24 °C and has ...

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Q: tify the suitable reagents for the following: 1) BH, THF 2)H,O2, NaOH

A: Reaction of alkene with BH3,THF & H2O2, NaOH is known as hydroboration oxidation.  Alkene underg...

Q: A sample of water from the North Sea was analysed by ion-chromatography and the suifate concentratio...

A: On mixing two aqueous solutions, if a solid is separated out then the reaction is termed as precipit...

Q: The solubility of Ag2CrO4 (s) is increased in NH3 (

A: Solubility equilibrium of Ag2CrO4 is Ag2CrO4(s) <---> 2Ag+(aq.) + CrO42-(aq.) If we add NH3, i...

Q: Phosphorous acid, H, PO, (aq), is a diprotic oxyacid that is an important compound in industry and a...

A: Please  find the below attachments.

Q: How many signals do you expect in the proton NMR spectrum of 2-chlorotoluene?

A: We have to predict the number of signals in the given compound.  

Q: 4.) For the following dienes A-G, please circle which organic molecules would not function as dienes...

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Q: one Trial two KIO3 solution taken (mL) 1.70 16.5 Moles of KIO3 1.06 x 10^-3 1.06 x 10^-3 Fin...

A: We have find out solubility and solubility product of Ca(Io3)2 for first and second filtrate.

Q: 28. Indicate the types of Inter-molecular interaction between the following molecules. a. the H. H. ...

A: Intermolecular forces are the forces between the molecules of compound. These forces depends on the ...

Q: Which of the following have S configuration?

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Q: As a chemist, your role is to interpret the structures from quantum chemical calculations based on y...

A: Thus, compounds with an O—O bond length of ≈1.4–1.5 Å and νOO between ≈800 and 930 cm−1 are designat...

Q: How many mg of active ingredient present in a 30g tube of a 0.05%w/w fluticasone ointment? are

A: Given :-  %w/w = 0.05%  Mass of tube = 30 g  To calculate :-  Mass of active ingredient (in mg) 

Q: Complete this diagram showing the type of phase change in matter by using the direction the arrows a...

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Q: Encircle and identify the region in the molecular structure that pertains to a specific functional g...

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Q: [Review Topica) [References] Either the reactant (X) or the major organic product is missing from th...

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Q: Some chemical reactants are listed in the table below. Complete the table by filling in the oxidatio...

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Q: draw 5-hexyl-2-methyl-4-(2-methylprop-2-enyl)octa-1,7-diene

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Q: Please

A: Which of the following is a reversible process?  a) melting of ice at 25° C and 1 atm b) evaporation...

Q: 23. Nitrosyl chloride, NOCI, decomposes to NO and Cl2. 2NOCI(g) → 2NO(8) + Cl2(8) Determine the rate...

A: The rate law of a reaction describes the dependence on the concentration of involved species in the ...

Q: Name a chemical test to differentiate 3-methylpentan-3-ol from 2-methylpentan-3-ol. Provide a chemic...

A: To differentiate between the 3-methylpentan-3-ol from 2-methylpentan-3-ol we use a test named as Luc...

Q: H3C. ОН 2 3 H 4 H3C NH2 How many chiral carbons are there? [ Select ] Is the molecule chiral? [ Sele...

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Q: The diagram represents the equilibrium state for the reaction X,(g) + 2 Y(g) = 2XY(g) Assuming the v...

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Q: Date: Name: Draw the structures of the organic products in each of the following hydrolysis reaction...

A: a) Ans :     The General reaction is the amide in an H2O react with the HCl and Heating to formed th...

Q: 26. a. Calculate the the molecular weight of Na2SO4 Atom Number of atoms Atomic Mass Total mass Mola...

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Q: Consider the insoluble compound iron(II) hydroxide , Fe(0H)2 · The iron(II) ion also forms a complex...

A: Fe(OH)2 is an insoluble compound. Iron (II) forms complex with CN- ions. In the presence of CN- ions...

Q: 9. Consider the following molecule of propanone: a. Use your understanding of VSEPR structures to ex...

A: Carbon Hybridization - Carbon is a vital and common chemical element that is required for organic li...

Q: The IR spectra below was taken in Nujol. Nujol is a mineral oil used to create a thick suspension wi...

A: IR spectra deals results from the interaction of infrared radiation with matter by absorption. IR sp...

Q: 3Pb (NO2)

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Q: A total of 665.19 Joules of heat are observed as 49.79g of lead is heated from 12.0°C to 78.12°C. Fr...

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Q: 3. A solution that may contain any of the group Ill cations. Treatment of the solution with CIO in a...

A: Solution - According to the question - Given - group IIIA: Al3+, Cr3+, Fe3+, group IIIB: Zn2+, Ni2+,...

Q: I have a NMR spectrum of my synthesized para nitroaniline sample, but it is dilluted. I try to figur...

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Q: Calculate [OH ] for 1.3x10-3 M Sr(OH), 2- Express your answer using two significant figures.

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question fo...

Q: Consider the following reaction where Ke = 1.80×10-2 at 698 K. 2HI(g) H2(g) + I2(g) A reaction mixtu...

A: Given reaction: 2HI(g) ⇌ H2(g) + I2(g) Given, Kc = 1.80 × 10-2 The moles of HI present = 0.277 moles...

Q: What quantity in moles of precipitate will be formed when 213.0 mL of 0.250 M LiCI is reacted with e...

A: Given -> Volume of LiCl = 213.0 ml Molarity of LiCl = 0.250 M  

Q: Calculate the pH of a 0.42 M H,SO4 solution. Give your answer to 2 places after the decimal.

A: given, molarity of H2SO4 solution = 0.42 M

Q: 8) A 0.185 M solution of a weak acid has a pH of 2.95. Calculate the acid ionization constant (Ka) f...

A: A 0.185 M solution of a weak acid (HA) has a pH of 2.95. Calculate the acid ionization constant Ka f...

Q: Instructions: Write ONE mechanism for the indicated reaction. Include all intermediate, formal charg...

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Q: Practice Problem 7.16- When the compound called isoborneol is heated with 9 M sulfuric acid, the pro...

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Q: he major 7. H-SO, beat

A: Alcohol undergoes E1 mechanism and stable alkene is formed. In the elimination mechanism carbocation...

Q: Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C,H5CO2H) and 0.15M sodium ...

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Q: 2. are the percent compositions of the flue (dry basis) if the fuel is burned stoichiometrically? As...

A: The solution of the question is given below: The information given is:  C = 83 % H2 = 7% O = 5% S = ...

Q: Explain how you determine the pH of 0.500 M HOCI (Ka = 3.6 x 10) www m

A: pH  = - log [H3O+] HOCl is a weak acid and doesn't undergo complete dissociation in solution. Thus, ...

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.