Why BH 3-THF not BH 3 is used in the experiment? Plz do Asap....!

Q: overall aden fn tereactiorabwe! .20 what is te overall aae for tereactrobre! 200 0.00 8.00xl0 1. 0.…

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Q: What is deionized water? What kind of impurities are not removed by deionization?

A: Purified water does not contain any impurity. There are various methods for purification of water…

Q: Given your choice of Flame AA, ICP-AE, XRF, EI-MS, or none of these, and keeping in mind that cost…

A: The function of Flame AA  is to detects the metal present in a sample. The function of ICP-AE is to…

Q: general mechanism of electron ionization

A: 1 Electron ionisation is a part of mass spectroscopy. 2. the key points here are Analyte…

Q: In HPLC, why is purging being done before analysis of samples. Outline the procedure on how purging…

A: High-performance liquid chromatography (HPLC) is one of the separation technique used to analyze of…

Q: An archatological artifact was fonnd to haave a 14 of 5.23 xl0-15 What is the age of cf this…

A: Given: 14C: 12C = 5.23 × 10-15 Assuming initially 1 mole of 14C was present.

Q: For all of the Mass spectroscopy below, please find the Ion peak, M+1, M+2 peak, and show the…

A: M+1 peak is appear when molecule contains an isotope that is one mass unit higher than M+ M+2 peak…

Q: Write Ksp for Ca3(PO4)2 salt.. O a: [Ca2+13 [POa)]? O b. [Ca?+] [PO,3-1² O c. [Ca]3 [PO3-1? O d.…

A: Ksp is the solubility product constant. It tells the how much the compound is soluble in aqueous…

Q: Trial 1 10

A: In the given question, two filled burettes are given. Reading of a burette is done by observing the…

Q: Unknown #21 benzoin Mass Spec Please label and explain

A: Given Compound = Benzoin Structure  benzene ring has carbonyl group attached has ortho and para…

Q: (b) Protein concentration can also be determined by UV spectrophotometry. (i) Describe the principle…

A: Answer. UV - Visible spectroscopy is an analytical technique used to determine the absorbance of an…

Q: Hello, I would like help with problem 41 in the image attached.

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: 4. For CH24 Oor H2O: a. Which is on top? Why? b. Where does l; and KMNO, dissolve? Why? Type here to…

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Q: tohr Method is not good for determination of l- and SCN- due to O scattering of light O…

A: Mohr method is not good for determination of I- and SCN- because

Q: What is the difference between Mohr and serological pipette?

A: Difference between Mohr and serological pipette is given below.

Q: Ksp for this compound? er should be entered with 3 significant figures; do not enter units; give…

A: It is a ACl2 type salt.  So, Solubility equilibrium is as ACl2(s) ----> A2+(aq.) + 2Cl-(aq.)…

Q: alpha source was counted for 10 hours at a distance of 2 cm from a detector with an active face area…

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Q: जिोट मेट (णणेर केनंजलवेकळ +क्स गनण following.Cma • raw with farmal charge प्केक किoजकव tode ero on…

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Q: Explain why is FAAS a good method of quantifying Ca in milk?

A: In milk, calcium is spreaded between caesin micelles and milk serum.

Q: energy is 10 eV? (Typical molecular binding energies range from 1 - 10 ev.) Submit Answer Submission…

A: The question is based on the calculation of ratio of photon energy to molecular binding energy.…

Q: Answer 28, 29 & 30 show-all-working-explaining-detailly-each-step Answer should be typewritten…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: LOD 4D00 1000 2000 1000 NAVENUHE ERIl Figure 2: FT-IR (KBr) for the benzopinacol product taken in…

A: FT-IR or Fourier-transform spectroscopy is a technique used to obtain an absorption or emission…

Q: Calculate AH for the reaction of hydrazine (N2H4) with methanol. Target: N2H4 (1) + CH40 (I) → CH2O…

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Q: Scenario 1. The reaction did not run to completion (not all sm was consur 2. The reaction ran to…

A: Thin layer chromatography (TLC) is the technique which is used to identify the progress of the…

Q: 24. N2O5 - 25. LizSO4 - 26. KOH - 27. H;BO; - 28. FeBr3 - 29. Mg3(PO:)2 - 30. PbCrO4 -

A: Here we have to write name of the compounds-

Q: Absorbance 2 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 Acetic anhydride decay at 250 nm • D20 H20 2000…

A: We would check nature of plot and coordinates of axes to determine order .

Q: B: At 25°C, what is the hydronium ion concentration in the following with discussing your result:-…

A: A)For the weak acid  H+= √ka×C B) Given molecule is salt mixture of weak acid and strong base. So…

Q: 600g of molybdenum (C-0.25) is heated from 250K to 650K. What is delta H?

A: Change in enthalpy (∆H) can be calculated by the equation; ∆H = m*C*∆T ---------(1) Where;  m = mass…

Q: what a schematic diagram is, and what processes/contents should be in it. thank you

A: In this question we have to clearfy about a schematic diagram and the process or contents should be…

Q: A 0.32 g soil sample was digested and diluted to 481-mL. The diluted sample was analyzed for Zn by…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: 1. Which chicken is more tender? Why is this so? 2. What do you think is the role of the papaya in…

A: chicken boiled with papaya is more tender because softness increase on adding papaya. role of papaya…

Q: 2. Given the data in the table below and AH°. for the rxn reaction so,Cl, (g) + 2H,0(1)…

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Q: The concentration of Ba(103)2 in H2O at 35°C (Ksp = 3.00 x 10- %3D Ba(103)2 (s) - Ba²* + 2103 5.23 x…

A: Ksp = 3.00 × 10-9  Concentration of Ba (IO3)2 = ?

Q: OH OEt H. chemoselectivity

A: ->LiBH4 is a reducing agent which can selectively reduce ester and lactones to the Alcohols.

Q: Synthesis of Orange II dye.

A: Orange II Synthesis a. Cool 10 mL of 10% NaOH in a 400 mL beaker. Add 1.8 g of 2-naphthol to this…

Q: Born-Haber cycle); Cl appears to undergo deposition but it isn’t given, overall this question just…

A: Solutions=      Let us calculate the lattice enthalpy of Magnesium chloride by the following steps…

Q: the end reversible process. What IR bands would you want to follow if you needed to monitor corbonu…

A: Given that, a natural process of in which nicotinamide adenine dinucleotide (NAD+) used to oxidise…

Q: Why CH3COCI/AICI, mixture is used for Friedel-Crafts acetylation reaction and not CH;COCI/H,SO4…

A: Friedal craft reaction is electrophilic substitution reaction, in which electrophile substitute at…

Q: D f) 30 e OH MgBr +0=C=O - product HCLHO product ??? HCLH₂20 ??

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Q: Write Ksp for Ca3 (PO4)2 salt ... a. [Ca2+]3 [PO4]² b. [Ca2+] [PO43-1² c. [Ca]³ [PO43-]? d. [Ca2+]²…

A: The compound given is Ca3(PO4)2.

Q: What is the E-value for Caffeine? (MW = 194.19, Liso = 0.9) О а. 2.8 O b. 0.03 О с. 1.7 O d. 0.08

A: Nicotine and water has upper and lower consolute temperatures.  Hence option d) is correct .

Q: (b) Protein concentration can also be determined by UV spectrophotometry. (i) Describe the principle…

A: Answer. UV spectrophotometry or UV-Visible spectroscopy  is an analytical technique used to identify…

Q: w Solid, unknown acid were contaminated with pure, adsorbed water prior to weighing out the Sample,…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Give answer. ASAP

A: Given are two compounds and we will have to draw the lowest energy conformer in newman projection.…

Q: The concentration of Ba(103)2 in H20 at 30°C (Ksp = 1.25 x 10- Ba (103)2 (s) Ba2+ + 2103 2.37 x 10-4…

A: Solubility product constant is the product of concentration of the dissociated ion raised to the…

Q: Convent Lon to

A: The above organic convertion is given below

Q: Compute for the actual moles of acetic anhydride and 1-pentanol used in the experiment using the…

A: Number of moles of any substance can be calculated by dividing its mass by molar mass.  Specific…

Q: AB, (s) = A+(aq) + 3 B¯(aq) t is the Ksp of this salt at 25 °C?

A: Ksp is solubility product which is defined for solid. It is evaluated in terms of concentration.…

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.