User Account

All Pages

Determine the mass of quinine in the tablet

Assignment Help Chemistry
Reference no: EM132410053

A 1.6664g antimalarial tablet contains the compound quinine. the tablet is dissolved in 0.1 M HCl to give 500 mL of solution. A 15.00 mL ALIQUOT OF THIS SOLUTION IS THEN DILUTED WITH 100.00 mL of acid and fluorescence of this sample is measured. The sample gives a signal of 288 units at 347.5 nm. A standard sample containing 100 ppm quinine is measured under the same conditions and gives a signal of 180 units. Determine the mass of quinine in the tablet.

Reference no: EM132410053

Questions Cloud

Describe the practice theory or model : Describe the practice theory or model and define the main concepts of this theory. Include the references list, and use APA formatting for all components.
Number of moles of nitrogen gas in the container : A sample of nitrogen gas, stored in a 5.28-L container at 32.0°C, exerts a pressure of 4.54 atm. Calculate the number of moles of nitrogen gas in the container.
What is the standard enthalpy of formation : What is the standard enthalpy of formation of BaCO3(s)? BaCO3(s)->BaO(s) + CO2(g) (Triangle)H=+269.3 kJ/mol-rxn BaO(s) = 553.5, CO2(g). = -393.5
Debate the issues professionally to support your opinions : Again, use any personal experience if appropriate to help support or debate other students' posts. If differences of opinion occur, debate the issues profession
Determine the mass of quinine in the tablet : A standard sample containing 100 ppm quinine is measured under the same conditions and gives a signal of 180 units. Determine the mass of quinine in the tablet.
What mass of carbon dioxide is produced from the complete : A) What mass of carbon dioxide is produced from the complete combustion of 6.00×10-3 g of methane?
How ebp might help reach the quadruple aim : Your analysis should address how EBP might (or might not) help reach the Quadruple Aim, including each of the four measures of: Patient experience.
Discuss whether the two stretching vibration modes : Discuss whether the two stretching vibration modes identified are active and/or inactive and will allow carbon dioxide to absorb IR radiation?
Reflect on the process of your group presentations : Reflect on the process of your group presentations. Identify and critically evaluate the strategies used, indicate how you will address areas for development.

Reviews

Write a Review

Chemistry Questions & Answers

  Define closed system the temperature goes down

When 2.20 grams of Cr(CO)6 reacts according to the following equation at 400 °K in a closed system the temperature goes down and 5.2 kJ of hear is absorbed

  One can of soda pop is 355 ml find out the number of

one can of soda pop is 355 ml. find out the number of tartrazine in milligrams that are utilized while drinking one can

  Find out the volume of a cube

determine the volume of a cube 10,62 cm, give an example of four sets of measurements that illustrate an imprecise and inaccurate data

  Define what is the molecular formula for a substance

What is the molecular formula for a substance that contains in 1.00 mole of sample 1.00 mole of S, 24.1 x 10 to the 23rd atoms of F, and 71.0 grams of Cl

  Find the ph of the solution at the points in the titration

find the ph of the solution at the following points in the titration: a) before any base is added b) when half the acetic acid has been neutralized c) at the equivalence pt.

  Explain chemical syntheis can be characterized as consisting

Chemical Syntheis can be characterized as consisting of three basic processes: making chemicals, isolating the products and characterization. Each process is carried out using one or more techniques. Match the following technique with the process.

  Calculate the ph of each of the following solutions

Calculate the pH of each of the following solutions.

  Producing some nitrogen monoxide

Suppose you were tasked with producing some nitrogen monoxide (a.k.a. nitric oxide). I'm sure this is often requested of you. You can do it by combusting ammonia (be careful!). The equation would be as follows: 4NH3 + 5O 2→ 4NO + 6H2O. If you form ..

  Solution calculate the concentration

A sample of hydrochloric acid contains 7.05 x 10-3 mol of hydrogen chloride in 50cm3 of solution calculate the concentration in mol dm-3 of this hydrochloric acid

  Understanding changes that are taking place in our oceans

We know that temperature affects solubility of gasses in a liquid. As a climatologist, this concept is crucial to understanding changes that are taking place.

  Explain ecognizing that the molecular formula may be twice

Write structural formulas for six, recognizing that the molecular formula may be twice the empirical formula in some of them.

  What will be the final temperature of a mixture

What will be the final temperature of a mixture made from equal masses of water at 24.1 C, ethanol at 37.3 C, and iron at 93.3 C? The specific heat capacities of each are: 0.449J/g C (Fe), 4.18J/g C(Water), and 2.42 J/g C (ethanol).

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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