Define the concentration of ascorbic acid in a new beverage

Assignment Help Chemistry
Reference no: EM13564266

The concentration of ascorbic acid (vitamin C) in a new beverage is to be determined using a new electrochemical sensor.
A 20.00 mL sample of the beverage gave a reading of 2.05 µA. A second aliquot of 20.00 mL was spiked with 1.0 mL of 0.0804 M ascorbic acid.
The spiked sample gave a reading of 3.86 µA.

What is the concentration of ascorbic acid in the beverage (to 2 s.f.) in M?

Reference no: EM13564266

Questions Cloud

State hair for subsequent injection into a gas chromatograph : A new method is devised to extract marijuana from hair for subsequent injection into a gas chromatograph. An external calibration curve determined an unknown hair sample to contain 0.53 ng/g marijuana in hair.
Obtain how much work is required to move it : A 915 N crate rests on thefloor. How much work is required to move it at constant speed 5.5 m along the floor against a friction force of 180 N
Estimate what is the tension in each of the cables : A 17.0 kg loudspeakeris suspended 1.00 m below theceiling by two 3.10 m longcables that angle outward at equal angles. What is the tension in each of the cables
Temperature change be than temperature change of metal : Equal amounts of heat are added to equal masses of iron andsilver at the same intial temperature. Which metal will have the higher final temperature?
Define the concentration of ascorbic acid in a new beverage : The concentration of ascorbic acid (vitamin C) in a new beverage is to be determined using a new electrochemical sensor. A 20.00 mL sample of the beverage gave a reading of 2.05 µA.
Research a process change within a single business : Research a process change within a single business unit based on organizational change within the program management department.
What is theaverage speed over the entire trip : Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2, What is theaverage speed over the entire trip
Find the speed of the bullet as merges from the block : A 4.94-g bullet is shot through a 0.99-kg wood blocksuspended on a string 2.00 m long. The center of mass of the blockrises a distance of 0.50 cm. Find the speed of the bullet as ite merges from the block if its initial speed is 393 m/s.
Evaluate the weight percent proetectoid ferrite : Calculate the weight percent proetectoid ferrite in the steel. Also calculate the weight percent eutectoid ferrite and weight percent eutectoid cementite in the steel.

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what volume of 0.205 m k3po4 solution is necessary

What volume of 0.205 M K3PO4 solution is necessary to completely react with 122mL of .0110M of NiCl2? 2K3PO4+3NiCl2=Ni3(PO4)2+6KCl

  Calculate w and u when 1 mole of xenon gas assumed ideal

calculate w and ?u when 1 mole of xenon gas assumed ideal under goes adiabatic expansion from 27?c to 127? assumingheat

  Compute the molar mass of the acid

an unknown monoprotic acid is titrated with 38.10mL of 0.265 M NaOH. Calculate the molar mass of the acid.

  State how many molecular orbitals are present in the valence

How many molecular orbitals are present in the valence band of a sodium crystal with a mass of 5.90g?

  The solution is required to neutralize a sample of the naoh

What is the molarity of a NaOH solution if 48.0 mL of a 0.220 M H2SO4 solution is required to neutralize a 25.0-mL sample of the NaOH solution

  How many grams of octane were in the sample

A testing facility found that 8.35*10^23 molecules of carbon dioxide were produced when a sample of octane was burned in air. If this combustion process is known to produce an 86.7% yield, how many grams of octane were in the sample?

  Calculate the number of grams of glucose

Calculate the number of grams of glucose must be dissolved in water in order to produce 100.0 ml of a 3.700 M glucose solution (C6H12O6). Density = 2.601

  Explain the standard enthalpy of formation of gaseous h2o

The standard enthalpy of formation of gaseous H2O at 298 K is -241.82 kJ mol-1. Estimate its value at 75 °C given the following values of the molar heat capacities at constant pressure:

  A barium chromate dissolved upon treatment with nitric acid

Barium chromate dissolved upon treatment with nitric acid forming an orange solution. Write a net ionic equation to represent the overall reaction that occurs.

  Explain an enzyme found in the small intestine

Lactase, an enzyme found in the small intestine, cleaves the milk sugar lactose to yield glucose and galactose. Assuming that the km for lactose is 0.9mM, vmax is 3.5 micromole/min/mg lactase, 5.7 micromoles lactose is presesnt

  Define is more difficult to identify all of the components

Why is it more difficult to identify all of the components of a mixture than it is to identify the cation and anion that make up a simple salt

  State what is the molar mass of the liquid

the vapor of a volatile liquid is able to fill a 408-mL flask at 100.4C and 765mm Hg, what is the molar mass of the liquid?

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