User Account

All Pages

Explain how many grams of caffeine will extract

Assignment Help Chemistry
Reference no: EM13268733

If you have 4.14 g of caffeine dissolved in 61.0 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use 96.9 mL?

Reference no: EM13268733

Questions Cloud

How facebook allows users to interact with others : How Facebook is in an online social networking industry and for the product and service it produces, you can mention how Facebook allows users to interact with others such as friends and family
Determine the normal force exerted by the road on the car : A 1000-kg sports car (including the driver) crosses the rounded top of a hill (radius = 90.0m ) at 22.0m/s. Determine the normal force exerted by the road on the car
Explain phosphonate and synthesis of a conjugated diene : Preparation of an ally phosphonate and synthesis of a conjugated diene. Write out the complete mechanism for the reaction.
Determine the half life of the sample : What is the half life of the sample if the decay rate decay rate decreases from 175 KBq to 12.4kBq in 18 seconds
Explain how many grams of caffeine will extract : If you have 4.14 g of caffeine dissolved in 61.0 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use 96.9 mL
Describe any surprises or discoveries you made : What idea, image, or theme in a reading was the most striking, powerful, or important to you and describe any "surprises" or discoveries you made?
Explain pressure using a pressure-temperature nomograph : One can approximate boiling point at reduced pressure using a pressure-temperature nomograph. What would you expect the observed boiling point to be at 50 torr for a liquid that has a boiling point of 280 degrees celsius at 760 torr
Explain how many grams will remain in the aqueous layer : Assume an organic compound has a partition coefficient between water and diethyl ether equal to 8.95. If there are initially 7.89 grams of the compound dissolved in 100.0 mL of water, how many grams will remain in the aqueous layer after extractio..
What isotope is left after each of the decays : Atomic physics, you begin with 227 over 89. Then there is an alpha decay, What isotope is left after EACH of the decays

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the 95% confidence interval

Calculate the 95% Confidence interval is the measured standard deviation is not a good estimate of the population standard deviation.

  State the container as a function of temperature

A mass of G grams of a liquid are placed in a closed 15 liter, fixed-wall container. The molecular weight of the liquid is 18 g mol-1. Its molar heat of vaporization is 44 kJ mol-1. Its normal boiling point is 373 K. A scientist measures the press..

  Compute the partial pressure of ozone

Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.

  Explain what is the ph after hcl added to nh3

25.00 ml of a .250 M NH3 solution is titrated with .100 M HCl. What is the pH after 5.00 ml of HCl has been added? Kb of NH3 = 1.76*10^-5. (please show all calculations)

  Define the difference between methanol and methanol solution

what is the difference between a 10% (v/v) methanol (CH3OH) solution and a 10%(m/m) methanol solution

  What will be the pressure in the cylinder

A gas cylinder containing 6.38 mol of neon has pressure of 491mmHg at 295k. If 3.22 mol helium is added at constant temp and pressure, what will be the pressure in the cylinder

  What is the mass percent of acetic acid in the vinegar

a) What is the molarity of the acetic acid? b) If the density of the vinegar is 1.006 g/cm3, what is the mass percent of acetic acid in the vinegar.

  Calculate the ph of a solution

Calculate the pH of a solution prepared by mixing 250. mL of 0.174 m aqueous HF (density = 1.10 g/mL) with 38.7 g of an aqueous solution that is 1.50% NaOH by mass (density = 1.02 g/mL).

  State a solution of iodine in carbon tetrachloride

A solution of iodine in carbon tetrachloride is 0.10M. How much solvent (carbon tetrachloride) must be added to 50 mL of this solution

  Explain a concentration cell contains electrodes

A concentration cell contains electrodes made of the same metal and solutions containing the same ions but at different concentrations.

  What is the mole fraction

If a reaction mixture initially contains 486 of and 261 of , what is the mole fraction of when equilibrium is reached.

  Calculate the concentration of ethanol

Calculate the concentration of ethanol in wine in terms of mass percent and molality. mass percent: (answer in percent) molality

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