Question

In: Chemistry

For each of the following categories of compounds, indicate the type of liquid chromatography that could...

For each of the following categories of compounds, indicate the type of liquid chromatography that could be used to separate analytes in that category. (Drag the appropriate chromatography label to the blank next to the category. Only one label applies to each category, but a label may be used more than once).

Seperation Mode Analyte Category

Fm>2000,soluble in octane,size10 nm

Fm>2000, soluble in butanol, size 100 nm

Fm>2000, soluble in water,nonionic,size 10 nm

Fm<2000, soluble in in ethanol

Fm<2000 , soluble in water, ion-paired

Fm<2000, soluble in water, ionic

Choices:

ion -exchange

Bonded-reverse phase

Adsorption

Bonded normal phase

Molecular exculsion

Expert Solution

Ans: For 1,3 it is reverse phase due to

1) Fm>2000,soluble in octane,size10 nm : Bonded-reverse phase

2) Fm>2000, soluble in butanol, size 100 nm : Molecular exculsion

3) Fm>2000, soluble in water,nonionic,size 10 nm : Bonded-reverse phase

4) Fm<2000, soluble in in ethanol : Bonded normal phase

5) Fm<2000 , soluble in water, ion-pair : Bonded normal phase

6) Fm<2000, soluble in water, ionic : ion -exchange

For 1,3 it is reverse phase due to the presence of non polar in nature, where as for no.2 we have to use Molecular exculsion because of more size

For 4 and 5 it is bonded normal phase due to the presence of polar solvents, where as for no.6 it is ion -exchange because of ionic in nature.

queen_honey_blossom answered 6 months ago

For each of the following compounds, indicate the pH at which 50% of the compound will...

For each of the following compounds, indicate the pH at which 50% of the compound will be in a form that possesses a charge and at which pH more than 99% of the compound will be in a form that possesses a charge. CH3COOH (pKa = 4.76) CH3NH+3 (pKa = 10.7) Determine a pH at which pH more than 99% of CH3COOH will be in a form that possesses a charge. Express your answer using two decimal places.

Indicate the direction of polarity for each of the covalent bonds of the following compounds using...

Indicate the direction of polarity for each of the covalent bonds of the following compounds using the δ+/δ− notation. Match the notation in the left column to the appropriate blanks in the sentences on the right. In the compound HI , H has ____ and I has ____. In the compound NaOH, O has _____ and H has_____. In the compound BCl3, B has_____ and Cl has_____. In the compound PdBr2, Pd has ____ and Br has ____. In the...

Indicate whether or not each of the following ionic compounds will undergo hydrolysis and predict whether...

Indicate whether or not each of the following ionic compounds will undergo hydrolysis and predict whether the resulting solution pH will be acidic, basic, or indeterminate (both ions undergo hydrolysis). (a) NH4ClO4 acidic hydrolysis basic hydrolysis indeterminate hydrolysis no hydrolysis (b) LiBr acidic hydrolysis basic hydrolysis indeterminate hydrolysis no hydrolysis (c) PbSO4 acidic hydrolysis basic hydrolysis indeterminate hydrolysis no hydrolysis (d) Co(ClO3)2 acidic hydrolysis basic hydrolysis indeterminate hydrolysis no hydrolysis

Explain how gas chromatography differs from liquid chromatography.

(ASAP) Indicate whether each of the following compounds will gave an acidic, basic or neutral solution...

(ASAP) Indicate whether each of the following compounds will gave an acidic, basic or neutral solution when dissolved in water. Clear All ammonium bromide calcium fluoride potassium perchlorate potassium bromide The pH will be less than 7. The pH will be approximately equal to 7. The pH will be greater than 7. ammonium bromide calcium fluoride potassium perchlorate potassium bromide

Indicate whether each of the following compounds will gave an acidic, basic or neutral solution when...

Indicate whether each of the following compounds will gave an acidic, basic or neutral solution when dissolved in water. Clear All ammonium bromide barium cyanide potassium chloride potassium bromide The pH will be less than 7. The pH will be approximately equal to 7. The pH will be greater than 7.

Compare and contrast Column (solid-liquid) chromatography, Paper Chromatography, and thin layer chromatography in respect to the...

Compare and contrast Column (solid-liquid) chromatography, Paper Chromatography, and thin layer chromatography in respect to the size of the sample that can be separated, the ease of use, and the versatility of the method.

Indicate the type of error that each of the following audit procedures is designed to or...

Indicate the type of error that each of the following audit procedures is designed to or is likely to disclose: i) review of the repairs and maintenance account. ii) confirmation of a portion of accounts receivable. iii) reconciliation of interest expense with loans payable.

For each of the following independent situations, indicate the reason for and the type of financial...

For each of the following independent situations, indicate the reason for and the type of financial statement audit report that you would issue. Assume that all companies mentioned are private companies and that each item is at least material. a. Thibodeau Mines, Inc., uses LIFO for valuing inventories held in the United States and FIFO for inventories produced and held in its foreign operations. b. Walker Computers is suing your client, Super Software, for royalties over patent infringement. Super Software's...

What is the predominant intermolecular force in the liquid state of each of these compounds: ammonia...

What is the predominant intermolecular force in the liquid state of each of these compounds: ammonia (NH3), carbon tetrachloride (CCl4), and hydrogen sulfide (H2S)? Drag the appropriate items to their respective bins.