2,220 Answered Questions for the topic organic chemistry

Organic Chemistry Biology Biochemistry Microbiology

12/18/19

I need to understand the structure activity relationship of an antibiotic compound and its bioactivity
Molecule: Wollamide Made analogsChanged sterechemDisk Diffusion assayB. Subitulis The question what is the mechanism of action of Wollamide and why other analogs didnt not work or not inhibted.
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12/18/19

I am trying to go thrgouh this question and I need someone who is chemsity expert to try to solve this problem which is related to the contrant rates
You designed a contrast agent that incorporates folate so it can bind to folate receptors. When injected intravenously (IV), this contrast agent will mark circulating tumor cells, overexpressing... more
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Organic Chemistry Chemistry Moles Volume

12/10/19

Calculate Moles and Volume

Given the following amounts of gasses, calculate the number of moles of each gas. Calculate the volume of each amount of gas would occupy at 100°C and 15atm. a. 5.8g NH₃b. 48g O₂c. 10.8g He
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Organic Chemistry Chemistry

12/10/19

Partial Pressures of Atmosphere
Air pressure on the top of Mauna Loa, a 13,000ft mountain in Hawaii, is 460 mmHG. What are the partial pressures of O2 and N2 , which compose 21% and 70% of the atmosphere, respectively.
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Organic Chemistry Chemistry Ph

12/09/19

Using A Natural pH Indicator to Measure Household Chemicals?
Some household chemicals, such as hydrogen peroxide and chlorine bleach, break down many organic molecules. Do you think it would be wise to try to measure the pH of these types of solutions using... more
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Organic Chemistry Math Science Chemistry

11/19/19

Select every statement that is true concerning the Lewis dot structure for BeC2N2 (a linear molecule with beryllium in the center).?
Question options:There is at least one atom that does not have 8 electrons.There is at least one atom that has more than 8 electrons.There is at least one double bond. (Triple bonds do not count as... more
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Organic Chemistry Chemistry Chem

11/19/19

Help can someone check my work
Draw the condensed formulas of 3-hexene and 2-methylbutane3-hexeneCH3CH2CH=CHCH2CH32-methylbutaneCH3|CH3-CH-CH2-CH3 Draw the structural formula of 3-pentyne. What is wrong with this... more
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Organic Chemistry Chemistry Chemical Engineering

11/09/19

How to Calculate Osmotic Pressure and Freezing Point from density and gas pressure
We are given that:The vapour pressure of water at 100C is 1atm and the vapour pressure of an aceous solution of C2H6O2, non volatile, at 100C is .0.83atm. Taking into account the density of the... more
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Organic Chemistry

11/03/19

Synthesis of halomon from 2-butene
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Organic Chemistry Chemistry Biochemistry

11/02/19

Confusing Chemistry Math Question

If a closed vessel is charged with 65000.0 Pa of nitric oxide and allowed to react with excess liquid bromine, what is the equilibrium partial pressure of the product?NO(g) + 1/2 Br2(l) ↔ NOBr(g)... more
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Organic Chemistry Chemistry Biochemistry

11/02/19

Confusing Chemistry Math Question

The equilibrium constant for dissociation of ammonium chloride:NH4Cl(s) ↔ NH3(g) + HCl(g)is equal to KP = 0.013312 at 550.0 K. If 1.7 g of ammonium chloride is placed in a 1.0 L vessel and charged... more
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Organic Chemistry Chemistry Biochemistry

11/02/19

Chemistry Math Question

100.0 mL of a .40 M solution of unknown weak acid is combined with 50 ml of a .25 M strong base, and the final pH of the solution is measured to be 5.25. What is the pKa of the unknown acid?
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Organic Chemistry Chemistry Biochemistry

11/02/19

Chemistry Math Problem

Calculate the percentage of acetic acid that exists in ionized form when dissolved in water at 0.65 M total concentration. Ka(HOAc) = 1.76 x 10-5.
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Organic Chemistry Chemistry

10/31/19

what is the molar concentration of the silver ion in the final solution
27.8 mg of silver nitrate (AgNO3, 169.9g/mol) was dissolved in water to make 15.00 mL of solution. 8.15 mL of that solution was diluted to make a new solution with a total volume of 1.000L.
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Organic Chemistry Chemistry

10/30/19

what is the gram formula mass of li2so4

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Organic Chemistry Chemistry

10/28/19

Buffer Solution Chemistry Math Question 8
100 mL of 0.05 M carbonic acid is titrated with strong base to its second equivalence point, which occurs when 240.0 mL of the base has been added. What is the pH of solution at the second... more
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Organic Chemistry Chemistry Biochemistry

10/28/19

Buffer Solution Chemistry Math Question 6
How many grams of potassium lactate (KC3H5O3) must be added to 276.0 ml of 0.2 M lactic acid in order to prepare a buffer solution at pH 3.3? The pKa of lactic acid is 3.8.
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Organic Chemistry Chemistry

10/28/19

Buffer Solution Chemistry Math Question 3
If equal volumes of 0.11 M acetic acid and 0.06 M sodium hydroxide are mixed, what is the pH of the resulting solution? The pKa of acetic acid is 4.75
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Organic Chemistry Chemistry Biochemistry

10/28/19

Buffer Solution Chemistry Math Question
How many grams of benzoic acid would you add to 25 mL of 0.45M sodium benzoate in order to prepare a buffer solution at pH=3.8? Ka of benzoic acid is 6.3E-5
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Organic Chemistry Biochemistry Clinical Chemistry

10/25/19

What is the probable diagnosis if BUN is high and serum creatinine is normal?
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Organic Chemistry Chemistry Biochemistry

10/23/19

Acids & Bases Chemistry Math Question 6
An aqueous solution containing 0.24 M of unknown base has a measured pH equal to 8.39. What is the value of pKb for the unknown base?
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Organic Chemistry Chemistry Biochemistry

10/23/19

Acids & Bases Chemistry Math Question 5
In a 0.1 M solution of chlorous acid, what percentage of the acid is ionized to the chlorous anion, ClO2-? Ka = 1.1 x 10-2
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Organic Chemistry Chemistry Biochemistry

10/23/19

Acids & Base Chemistry Math Question
A solution of carbonic acid has its pH adjusted to 8.19 by addition of strong base. What is the equilibrium concentration ratio of carbonate ion to carbonic acid in the final solution? The acid... more
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Organic Chemistry

10/22/19

stoichiometry...
KHC8H4O4(aq) + NaOH(aq) → H2O(l) + KNaC8H4O4(aq) a) How many moles of NaOH (aq) is required to neutralize 0.8000 g of ‘KHP’ in the titration?b) It took 20.00 mL of NaOH (aq) to neutralize ’KHP’.... more
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Organic Chemistry

10/20/19

What is the theoretical yield and limiting reagent of the hydrolysis of Ethyl m-Toluate?

0.08203 mol NaOH and 0.971 mol HCl used
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