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Q: d-Glucuronic acid is found widely in plants and animals. One of its functions is to detoxify poisono...

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Q: What mass of ammonium chloride should be added to 2.55 L of a 0.155 M NHạ to obtain a buffer with a ...

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Q: Suggest structures given the 1H NMR spectra and formulas for each of the compounds below. C4H10O

A: The structure given the 1H NMR spectra has to be suggested and each of the compounds for the molecul...

Q: Draw a stepwise mechanism for the following reaction.

A: NBS in the presence of hv gives out Bromine free radical which will take away Hydrogen free radical ...

Q: AS = 0 The water is cooled from 37.0 °C to A few grams of liquid water (H,0). -11.0 °C. AS > 0 not e...

A: First water is in liquid state which the changes to solid. Here temperature is decreased, which rand...

Q: An irregular sample of zinc has a mass of 23.21g. this sample is carefully placed in a graduated cyl...

A: Density is defined as the ratio of the mass to the volume. The formula for the density is as follows...

Q: type of RNA that has a “clover-leaf shape” with three hairpin loops.

A: RNA or Ribonucleic acid is a polynucleotide composed of ribonucleotides. These are formed from DNA b...

Q: 240 g of water (initially at 20 o C) are mixed with an unknown mass of iron (initially at 500 o C). ...

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Q: A hexose was obtained after (+)-glyceraldehyde underwent three successive Kiliani–Fischer syntheses....

A: The above info can be used to identify the hexose as follows:  

Q: In determining the primary structure of insulin, what would lead you to conclude that insulin had mo...

A: We can state by considering the N-terminal of the peptide being treated with the phenyl isothiocyana...

Q: What will the concentration be 216

A: To find the concentration of the solution:  

Q: Propose a synthesis of the following molecule starting with benzene. Be sure to show all reagents an...

A: The given compound is,

Q: Write a balanced formula equation for: aluminum + oxygen → aluminum oxide

A: The given reaction is, Al + O2 → Al2O3 Multiply O2 with 3 and Al2O3 with 2 in order to balance the n...

Q: #23

A: The alpha particle, released in nuclear reaction, has the high energy, and the atomic number and mas...

Q: 7- Please I want answer with steps. Many thanks

A: An organic compound (A) has a general formula CnH2n. This compound has 7 carbon atoms. When the comp...

Q: A sample of pyrolusite weighing 0.6000 g is dissolved in a solution containing 5.00 mL of 6.00 N H2S...

A: Given that 1 mL of KMnO4 oxidise 0.03058 g of FeSO4.7H2O                                            ...

Q: Iodide is oxidized to hypoiodite in a basic solution of hypochlorite. I(ag) + ClO (ag) → IO (aq) + C...

A: The rate law for the chemical reaction is shown in equation (1) where x, y, and, z are the order of ...

Q: Calculate the pH of the solution resulting from the addition of 75.0 mL of 0.15 M KOH to 35.0 mL of ...

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Q: Draw a complete mechanism for the following reaction. Be sure to start with the formation of the ele...

A: The given reaction is,

Q: Calculate the pH for each H+H+ concentration.   [H+]=1×10−7 MpH=[H+]=1×10−7 M            ...

A: All acidic solutions possess a specified pH value which tends to denote the amount of H+ ions presen...

Q: Write the balanced half‑reaction in basic conditions that occurs at the anode in a nickel‑metal hydr...

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Q: Consider two trials of a titration carried out between a solution of 0.107 M NaOH and a 10.00 mL sol...

A: The quantitative combination among acid and base releases specified amount of energy along with gene...

Q: 10- Please I want answer with steps. Many thanks

A: 1)Oxidation number od S in SO42- Let us suppose oxidation number of S in SO42- is x Oxidation number...

Q: |Calculate the pH and pOH of a 2.0 L aqueous solution of 0.075 mol/L HCIQ, at 25°C. The Ka for hypoc...

A: HClO is a weak acid. Calculate the molarity of HClO solution:

Q: which of the following compounds (KOH, MgSO4, BaCl2, Cu(NO3)2 ) will not create a precipitate upon a...

A: Reactions giving out insoluble salt on mixing 2 or more compounds are categorized as "precipitation ...

Q: 4. Write the two cyclized products that are obtained upon base catalyzed cyclizaion of A. A

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Q: A 0.050 M solution of a weak acid HA has a pH of 4.12 at equilibrium. What is the Ka of the acid?

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Q: What is the final volume (in L) when 118.1 mL of 12.1 M HF is diluted to make a 0.4 M solution?

A: In known solution, the method applied for lowering the solution's concentration is stated as "diluti...

Q: Treatment of indene with NaNH2 forms its conjugate base in a Brønsted– Lowry acid–base reaction. Dra...

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Q: What is the configuration of each of the asymmetric centers in the Fischer projection of a. D-glucos...

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Q: a.How many π electrons does C contain? b.How many π electrons are delocalized in the ring? c.Explain...

A: 1. The given comound C has 16pi electrons from the 8pi electron due to teh double bonds  

Q: Draw the pH–activity profile for an enzyme that has one catalytic group at the active site: a. the c...

A: When we have a check on the info provided we can see the pKa value provided is 5.6 which tells that ...

Q: Calculate the pKa of the weak acid HA, given that a solution of 0.65 M HA and 0.85 M NaA has a pH of...

A: The formula for calculating pKa of an acid with the given values of pH and concentrations of HA and ...

Q: Why is the bond dissociation energy for the C–C bond in ethane much higher than the bond dissociatio...

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Q: If the half-life of a radioactive element is 30.0 years, how long will it take to decay to the point...

A: For the first order reaction we have the formula as : k*t = ln(A/At) Where A is the initial concentr...

Q: Please I want answer with steps. Many thanks

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Q: A pentapeptide has the amino acid sequence Gly-Ala-Gly-Phe-Cys. This describes as what kind of struc...

A: A pentapeptide has the amino acid sequence Gly-Ala-Gly-Phe-Cys. The structure is shown as below.

Q: (a) Determine the hybridization of each N atom in ibrutinib, a drug used to treat mantle cell lympho...

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Q: Determine the percent by mass of MgCl2 if 3.1 g of MgCl2 is dissolved in 41.1 g of water.

A: Calculate total mass of solution:

Q: How do you determine this?

A: At equilibrium the value of Q is equal to K.

Q: A given amount of HI is placed inside a reaction vessel and is allowed to reach the equilibrium. The...

A: When net/gross change in reacting and forming species during reaction propagation become constant, t...

Q: Helium gas effuses through a porous container 8.25 times faster than an unknown gas. Estimate the mo...

A: Let the rate of effusion of unknown gas be x. the rate of effusion of He gas will be 8.25x. The rela...

Q: Why are terminal alkynes a lot more acidic than alkanes? - More hydrogen atoms on a sp^3 Carbon - C-...

A: The compound made up of carbon and hydrogen is termed as a hydrocarbon. Alkanes, alkenes, and alkyne...

Q: 69. Lime, CaO, is produced by heating calcium carbonate, CaCO3; carbon dioxide is the other product....

A: Steps involved in the process of calculation of volume of CO2 in the decomposition of CaCO3. STEP1: ...

Q: 18. If phenolphthalein has been added to 100 mL of a clear solution and the solution does not change...

A: Given that phenolphthalein is added to 100 mL of clear solution does not change the color. Indicator...

Q: 4- Please I want answer with steps and clear typing or hand writing. Many thanks

A: a) The outer most shell in which electron is present is known as valence shell. For ground state = K...

Q: The hydrolysis of the ester shown here is catalyzed by morpholine. Explain how morpholine catalyzes ...

A: The mechanism is as follows:

Q: (a) The 'H-NMR spectrum of cyclobutanone shows two signals - signal A at 3.00 ppm and signal B at 1....

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any sp...

Q: 51. A cylinder of O2(g) used in breathing by patients with emphysema has a volume of 3.00 L at a pre...

A: Calculate the number of moles of oxygen gas using the ideal gas equation.