A physician administers 250 mg of drug X to a patient as an oral pill and finds that only 50 mg of the drug becomes bioavailable. If it is known that absorption of the drug in the GI tract is 80%, what percent of the drug absorbed is lost to the first pass of the liver? A) 80% B) 60% C) 25% D) 20% E) 75%

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A: Bronsted Lowry bases are those which can accept the proton in the solution from the counter molecule…

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Q: What would the hydroxide ion concentration be if the hydrogen ion concentration was 1 x 10-6 M?…

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Q: alculate the bond order of the dioxygen molecule and those of the molecular ions O2-, O22- and O2+?…

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A: Oamolity is defined as the number of osmoles (particles)  of solute per litre of solution. The…

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A: The reaction taking place during the titration is- 2HCl (aq) +Ca(OH)2 (aq)→CaCl2(aq)+ 2H2O(l) The…

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A: IR spectroscopy is used to determine the functional groups present in the sample. Different…

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A: The main constitute particle present in an organic nanostructure is always carbon (C), hydrogen (H),…

Q: 8. How much mass is released as energy in the explosion of a 4.6 megaton bomb? Include at least 3…

A: The concept used here is from basic chemistry.  Here it is important to note that we have to find…

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A: We have to draw the Lewis structure for H2S.

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A: pH of buffer solution can be calculated using Henderson hasselbalch equation.

Q: Which of the following reagents would be used to convert 2-pentyne to cis-2-pentene? OC) H₂. Lindlar…

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A: It is an application of  Clasius Clapyeron equation  Here we are required to find enthalpy of…

Q: Peak 1: 7.96 ppm Region from 8.0-7.3 ppm Zoomed in 2H Doublet 9 HR201102501MS 7.86 7.66 WZ 8 Peak 2:…

A: Analysis of sample through IR and NMR spectroscopy. Total 4 peaks appear in HNMR.

Q: Which of the following statements is untrue regarding DNA? Multiple Choice Phosphate groups link the…

A: According to me, only B option looking untrue, rest are true.  Explanation: The nitrogenous bases…

Q: Identify which of the following species are strong acids, strong bases, weak acids, weak bases, or…

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Q: Determine the pH of a solution in which the hydronium ion concentration was determined to be 2.00 x…

A: pH is equal to negative logarithmic of hydrogen ion concentration

Q: Rank the following from highest to lowest priority according to the Cahn-Ingold-Prelog system. IV.…

A: Since, According to Cahn-Ingold-Prelog rule- 1) More atomic number having more priority.2) If first…

Q: A 1.000 g sample of strontium-90 decays to 0.900 g after 2.5 years. What is the half-life? How much…

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Q: D Question 62 Rank the alkyl halides shown in the order of increasing reactivity for an E2…

A: 62) E2 reactions are known as bimolecular elimination eliminations in which an alkyl halide reacts…

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A: Given: Measured value = 1.75% True value = 6.50% Calculate : Percent error = ?

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A: When a base accept a proton ,then an acid forms , which called conjugate acid.  And when an acid…

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Q: If one blows onto a BTB solution, what do you expect to happen? A white precipitate will form. The…

A: Bromothymol blue (BTB) is an indicator dye which turns yellow in the presence of an acid. When we…

Q: the Ph of a water is 6, what is the OH- concentration?

A: POH is equal to negative logarithmic of hydroxide ion concentration

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Q: . A 0.125-g sample of a monoprotic acid of unknown molar mass is dissolved in water and titrated…

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Q: What is the major organic product obtained from the following reaction? HO O D) IV O A) I OB) II O…

A: -> Alcohol reacts with phosphorus trihalide and form alkyl halide.

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A: We know according to  Markovnikov's rule if a polar addendum is added to an unsymmetrical alkene…

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A: In an electrochemical cell, the electrode with a higher standard reduction potential acts as a…

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Q: Complete the following table for a selection of foods: Food [H3O+] [OH-] PH Apple juice Soy milk…

A: We have to solve for pH and concentration of [ H3O+ ] and [OH- ] ion.

Q: In basic medium, cyanamide reacts with itself (it dimerizes) to form dicyanamide whose Lewis…

A: Levis dot structure represent the diagram of covalent compound (polar and nonpolar) where electrons…

Q: 5) Novel substances "Pink" and "Green" are placed in an insulated container, with their initial…

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Q: How many mOsmol/L is a 5 g/L solution of the non-electrolyte urea? (MW 60) *Report your answer with…

A: Osmolarity is the number of particles per liter of solution and is expressed as mOsm/L of solution.

Q: You have prepared a solution using 2.08 g of NaOH (M.W.=40.00 g/mole) and 2.54 moles H2O(MW 1…

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Q: Indicate whether each of the following statements is characteristic of an acid, a base, or both:…

A: Difference between Acid , Base and Both given below

Q: Question 49 Which of the following is the major E2 product formed from the following alkyl halide? 2…

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Q: The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes…

A: Molar mass of propane - [(12 × 3) +(1 × 8)] = 44 g/mol Given, Propane burned - 1 g Temperature of…

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Q: Rhodium is a bright, hard, and highly reflective metal. It is most commonly used to plate white gold…

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Q: Yo दू mCPBA 1) LIAIH, 2)H30 1) EMg Br 2) HO का का HBr -20°C HBr 80°C

A: The major products of the reactions are given below -

Vitamins and Coenzymes

A class of organic compounds needed in the human body for normal activities is known as vitamins. They are characterized into two parts depending upon their solubility in water. They can act as coenzymes, cofactors, or prosthetic groups for enzymes.