Compute the concentration in ppm in the tablet

Assignment Help Chemistry
Reference no: EM13164153

a 2.196 g tablet was dissolved in sufficient 0.10 M HCl to give a 1.0L solution. Dilution of a 20ml aliquot to 100ml gave a solution with a reading of 540 at 347.5nm. A second 20ml aliquot was mixed with 10ml of 50ppm quinine solution before dilution to 100ml. The flourescence intensity of this solution was 600. Calculate the concentration in ppm in the tablet.

Reference no: EM13164153

Questions Cloud

Dissolved in pure water ignoring secondary reactions : SrCO3 is a sparingly soluble salt. Using the Ksp from the appendix, a) Determine the concentrations Sr2+ and CO32- when SrCO3 is dissolved in pure water ignoring secondary reactions of Sr2+ and CO32-
What pressure in atmospheres is necessary : A scientist wishes to compress 50.0 ml of ammonia gas at normal atmospheric pressure to a volume of 1.0 ml. What pressure in atmospheres is necessary?
What is the diameter of a single aluminum atom : If 8.88 X 10^7 aluminum atoms can fit along a 1.00 inch line, what is the diameter of a single aluminum atom?
What is the limiting reactant : How many grams of ammonia can be produced ? How much of the excess reactant is left over?
Compute the concentration in ppm in the tablet : A second 20ml aliquot was mixed with 10ml of 50ppm quinine solution before dilution to 100ml. The flourescence intensity of this solution was 600. Calculate the concentration in ppm in the tablet.
Evolution of socio-political milieu-colonial social life : What is the evolution of socio-political milieu during the colonial period, including Protestant Christianity's impact on colonial social life?
Analytical procedures and background details : Details of other business risks identified from your analytical procedures and background details.
Knowledge and belief seems pretty : The difference between knowledge and belief seems pretty clear. However, how much evidence does it take to change a belief into knowledge?
Calculate a value of ka for acetic acid : Using the average initial pH of your acetic acid solutions, and the average molarity of those solutions, calculate a value of Ka for acetic acid. when initial pH is 2.63 and average molarity is 0.06475.

Reviews

Write a Review

Chemistry Questions & Answers

  How many grams of ag2s can be generated

How many grams of Ag2S can be generated from a mixture of 1.85 g Na2S and 3.58 g of AgNO3 given the following unbalanced reaction:

  What is the partial pressure of the gas

A gas sample was collected over water at 25.3 degrees Celsius, The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected?

  Define batting averages of baseball players are reported

Batting averages of baseball players are reported in parts per thousand. what would be the batting average of a hitter

  Calculate the number of moles of hydrogen produced

At a certain temperature, the equilibrium constant for the reaction 2HI(g)39. At a certain temperature, the equilibrium constant for the reaction 2HI(g) H2(g) + I2(g) is 0.49.

  Explain the presence of a medium intensity band near

The presence of a carboxyl band near 1640 cm-1 and two bands near 3000 cm-1 is good evidence of an alcohol B) The presence of a sharp, medium intensity band near 2720 cm-1 and a strong carbonyl band near 1700 cm-1 is good evidence of an alcohol

  Determine the number of bonding electrons

Determine the number of bonding electrons and the number of nonbonding electrons in the structure of BeF_2 please Enter the number of bonding electrons followed by the number of nonbonding electrons

  What is the name of this hydrate

one heating 5.03 g of hydrate barium chloride, 4.23 g is left behind. what is the name of this hydrate?

  What will be the equilibrium concentration of co

Consider the following reaction: CO(g)+H2O(g)in equilibrium with CO2(g)+H2

  Solution of a strong acid

Are the following statements about a 1.0 M solution of a strong acid, HA, true or false? [A-] › [H+]: True/False

  At degrees celsius the equilibrium constant for the reaction

At 2000 degrees Celsius the equilibrium constant for the reaction 2NO (g) N2 (g) + O2 (g) is Kc=2.4x10^3 The initial concentration of NO is 0.174 M

  What is the proeutectoid phase

Consider 1.5 kg of austenite containing 1.15 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).

  Explain what is the minimum number of liters of air

What is the minimum number of liters of air that must pass over a sample of the compound at 25oC to vaporize 1.0 mg of it? Hint: You know the Vapor Pressure from question "a" above and you are given the temperature and mass.

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