485 Answered Questions for the topic organic chemistry

whats the running pressure in torr?

High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals... more

Draw a three repeat unit portion of a polymer chain of PVC.

Polyvinyl chloride (PVC) is the third most widely produced plastic in the world.

Based on percentages In chemistry

An alloy contains 58g of pure and 21g of pure copper.what is the percentage silver in the alloy?

How am I able to solve this problem? I am confused on how to set up the problem?

Calculate the theoretical yield of acetylsalicylic acid from 414 mg of salicylic acid assuming excess acetic anhydride?This is what I did... Salicylic Acid Molar MassC: 12.01 x 7= 84.07H:... more

Limiting Reagent & Percent Yield

5. Determine the limiting reagent and calculate the percent yield of isopentyl acetate in the g reaction. The density of acetic acid is 1.049 gmL. You must show all work for credit. H2SO4 acetic... more

Hydrogencarbonate

Sherbet lemons are sweets which consist of a flavoured sugar shell filled with sherbet. The sherbet contains sodium hydrogencarbonate, NaHCO3 and tartaric acid (2,3- dihydroxybutanedioic... more

The simplest carboxylic acid is methanoic acid HCOOH. It occurs naturally in ants.

The simplest carboxylic acid is methanoic acid HCOOH. It occurs naturally in ants.When an ant bites, it injects a solution containing 50% by volume of methanoic acid. A typical ant may inject... more

I need help with understanding structural activity relationship of modified compounds.

I synthesized peptoid or mimics of Wollamide a TB antibiotic. I’m seeking to determine the structural activity relationship and understand stereochemistry of each compound. I need to know what’s... more

Which of the following doesn't react with potassium hydroxide and why?

Which of the following doesn't react with potassium hydroxide and why?A)solid aluminium oxideB) copper(II) sulphate solutionC) solid ammonium chlorideD) sodium sulphate solution

I need to understand the structure activity relationship of an antibiotic compound and its bioactivity

Molecule: WollamideMade analogsChanged sterechemDisk Diffusion assayB. SubitulisThe question what is the mechanism of action of Wollamide and why other analogs didnt not work or not inhibted.

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.

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

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

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.

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

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

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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