Explain what is the dopamine concentration

Assignment Help Chemistry
Reference no: EM13274039

An unknown sample of dopamine gave a current of 34.6 nA in an electrochemical analysis. Then 2.00 mL of solution containing 0.0156 M dopamine was mixed with 90.0 mL of unknown, and the mixture was diluted to 100.0 mL in volumetric flask. The signal from the new solution was 58.4 nA. What is the dopamine concentration in the unknown sample?

Reference no: EM13274039

Questions Cloud

What is the current market price of the stock : Stag Corp will pay dividends of $4.75, $5.25, $5.75, and $7 for the next four years. Thereafter the company expects its growth rate to be at a constant of 7 percent. If the required rate of return is 15 percent, what is the current market price of..
Explain what is the heat energy change for the in kcal : What is the heat energy change for this in kcal. Specific heat of h2o 1.00cal/gC. How many mols of cacl2 is this. How much heat energy per mol. answer in kilocalories
What is the irr of each alternative : what is the present value of costs of each alternative? Round your answers to the nearest dollar, if necessary. Enter your answers as a whole number. For example, do not enter 1,000,000 as 1 million.
What must be relation between a and b in order that evanish : Two infinitely long coaxial cylindrical surfaces, r = a and r= b (b > a), carry surface charge densities Dsa and Dsb,respectively. (a) Determine the electric field intensity everywhere. (b) What must be the relation between a and b in order that Eva..
Explain what is the dopamine concentration : Then 2.00 mL of solution containing 0.0156 M dopamine was mixed with 90.0 mL of unknown, and the mixture was diluted to 100.0 mL in volumetric flask. The signal from the new solution was 58.4 nA. What is the dopamine concentration in the unknown s..
What are the firms current capital structure weights : what are the firm's current capital structure weights for equity and debt respectively?
Find formula for the electric field intensity in the region : a)solve Laplace's equation in the dielectric region between the inner and outer conductors to find the potential V(r) in the region a
What percentage of the ice remains solid : If you mix 2.5g of 100 degree celcius steam with 60g of 0 degree celcius ice. what percentage of the ice remains solid
Explain a mixture containing nm iodoacetone : A mixture containing 80.0 nM iodoacetone (designated A) and 64.0 nM p-dichlorobenzene (designated B) gave the relative detector response (peak area of A)/(peak area of B) = 0.71 in a chromatography experiment.

Reviews

Write a Review

Chemistry Questions & Answers

  Find out the patient''s body temperature in fahrenheit

Eventually, his mother decides to take him to the doctor who diagnoses it as an acute case of middle ear infection (otitis media), and prescribes amoxicillin for his treatment. He weighs 44lb, and the daily dose of amoxicillin for the treatment of..

  State a reaction mixture containing o-acetyl serine

A reaction mixture containing 20 mM O-acetyl serine, 50 mM NaCl, 50 mM HEPES buffer (pH 7.6), and O-acetyl serine acetylase is incubated in 37C until O-acetyl serine is completely hydrolyzed. What is the pH of the mixture at the end of the reactio..

  What is the partial pressure of oxygen

A gaseous mixture of O2 and N2 contains 36.8% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 685 mmHg.

  Explain what is the density of the aluminum

An aluminum engine block has a volume of 4.77 L and a mass of 12.88 kg .What is the density of the aluminum in grams per cubic centimeter?

  State the reaction that would occur between hcl and nahco3

the reaction that would occur between HCL and NaHCO3 using curved arrow notation. Show all nonbonded electrons.

  Explain disadvantages of the three energy sources

Explain the large disparity in the numerical results pf Part (a). Discuss the advantages and disadvantages of the three energy sources.

  Calculate the frequency in s-1 of the photon

A mole of photons in the blue visible region of the electromagnetic spectrum has an energy of 2.54 × 10 2 kJ/mol, calculate the frequency in s-1 of the photon.

  Compute partition coefficient of caffeine

Calculate partition coefficient of caffeine between water and each of two organic solvents. (c) Can you use diethyl ether to extract caffeine from water? Why/why not.

  Explain an anion from a strong acid form an acidic solution

why does a salt containing a cation from a weak base and an anion from a strong acid form an acidic solution

  Compute the equilibrium partial pressure of bromine gas

1.70 atm of I2 and 1.30 atm of Br2 are loaded into an evacuated container. The following reaction takes place with Kp = 117.6 Calculate the equilibrium partial pressure of bromine gas. No approximations can be made because the equilibrium constant..

  Significantly affects the calculation of r in the experiment

Most top-loading balances used in this experiment measure a mass only to the nearest mg(+/- 0.001 g). This significantly affects the calculation of R in the experiment

  Explain water and add a couple of drops of phenolphthalein

Suppose in the lab you measure 0.3951 g of NaOH and dissolve it into 100.0 mL of water. You then measure 0.1985 g of KHP and place it in a clean, dry 100-mL beaker, and then dissolve the KHP in about 25 mL of water and add a couple of drops of phe..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd