Problem- differential pulse polarography was used in past, Ask an Expert

Academics

Problem- Differential pulse polarography was used in past research to determine the concentration of an organomercury compound (hydroxymercuribenzoate, HMB) in solution. A 10.0 mL aliquot of the sample solution plus 100 mircroliters distilled water yielded a peak current of 2.75 microamps at a potential of -0.340 V vs Ag/AgCl. To the sample was added 100 microliters of 0.00483 M "HMB" in solution. After mixing , the scan was repeated, yielding a peak of 6.42 microamps at the same potential.

What was the concentration of "HMB" in the sample solution?

Please show how you obtained the answer

View complete question

Chemistry, Academics

Category:- Chemistry
Reference No.:- M91229728

Have any Question?Write your Review or question?

Related Questions in Chemistry

A 250-ml sample of 120 m potassium chloride solution is

A 25.0-mL sample of 1.20 M potassium chloride solution is mixed with 15.0 mL of a 0.900 M lead(II) nitrate solution and this precipitation reaction occurs: 2KCl(aq) + Pb(NO 3 ) 2 (aq) -------> PbCl 2 (s) + 2KNO 3 (aq) Th ...

One liter of nitrogen n2 and one liter of carbondioxide co2

One liter of nitrogen (N 2 ) and one liter of carbondioxide (CO 2 ), initially at one atmosphere pressure, are forcedinto a single evacuated 500 mL vessel. What is the total pressure, in atmospheres,if the temperature re ...

0394 mol of a solid was dissolved in 340 ml of water at 269

0.394 mol of a solid was dissolved in 340 mL of water at 26.9 oC. After the solid had fully dissolved, the final temperature of the solution was 31.6 oC. What is the molar heat of solution of the substance?

Ironiii oxide reacts with carbon monoxide according to the

Iron(III) oxide reacts with carbon monoxide according to the equation: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) A reaction mixture initially contains 22.15 g Fe2O3 and 15.98 g CO. Once the reaction has occurred as completely as po ...

What are the benefits of measuring the absorbance at the

What are the benefits of measuring the absorbance at the maximum absorbance wavelength? If light has a wavelength of 756 nm, what is the wavelength in centimeters? What is the wavelength in inches?

At a given pressure and temperature it takes 1987 sec for a

At a given pressure and temperature, it takes 198.7 sec for a 2.6 L sample of Kr to effuse through a porous membrane. How long does it take for 2.6 L Ar to effuse under the same conditions?

A 1526 g sample of a polymer dissolved in 100 l of a

A 1.526 g sample of a polymer dissolved in 1.00 L of a benzene solution at 22°C has an osmotic pressure of 4.52 x 10-2 atm. What is the molar mass of thepolymer?

Consider the following reactioncog cl2nbspg

Consider the following reaction. CO(g) + Cl 2 (g) > COCl 2 (g) The mechanism is believed to be, (1) Cl 2 2Cl (fast equilibrium) (2) Cl + CO COCl (fast equilibrium) (3) COCl + Cl 2 > COCl 2 + Cl (slow) (4) ...

A solution of hydrochloric acid has a volume of 250 ml and

A solution of hydrochloric acid has a volume of 250. mL and a pH of 1.92. Exactly 250. mL on 0.0105 M NaOH is added. What is the pH of the resulting solution?

Calculate the number of moles of barium chloride in 427g of

Calculate the number of moles of barium chloride in 427g of a 3.17% by mass barium chloride solution?

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Chemistry Expert