Describe vitamin a is a compound containing the elements c

Assignment Help Chemistry
Reference no: EM13712947

Question- Vitamin A is a compound containing the elements C, H, and O. When a 28.64 mg sample of Vitamin A was burned in oxygen, it was found that 88.02 mg of CO2 and 27.03 mg of H2O were formed.

Determine the percent composition (C, H and O) for vitamin A?

Determine the empirical and molecular formula of Vitamin A. The molar mass of vitamin A is 286 g/mole

Any expert is able to provide answer for this problem in very short time

Reference no: EM13712947

Questions Cloud

Calculate the equilibrium molarity of h2 : The following reaction becomes possible: CO(g)+H2O(g)=CO2(g)+H2(g) The equilibrium constant K for this reaction is 0.435 at the temperature of the flask. Calculate the equilibrium molarity of H2. Round your answer to one decimal place
Explain what is the molar mass of the gas : A sample of gas is removed from the canister and takes up 256 ml container at 100 degrees Celsius and has a pressure of 750 mm Hg. The original canister is reweighted and is now found to have a mass of 24.87 grams. What is the molar mass of the ga..
How many electrons must be added : Given a rod with + 2 micro C and a sphere with a charge of -2 micro C ,how many electrons must be added to the rod from the sphere get an overall charge of -5 micro C on the rod
What is the approximate molar mass of thyroxine : Pure benzene freezes at 5.444degreeC and has n value for the molal freezing point depression constant of K, of 5.12degreeC/m. What is the approximate molar mass of thyroxine
Describe vitamin a is a compound containing the elements c : Question- Vitamin A is a compound containing the elements C, H, and O. When a 28.64 mg sample of Vitamin A was burned in oxygen, it was found that 88.02 mg of CO2 and 27.03 mg of H2O were formed.
Find their common final velocity : Their masses and initial velocities are the same as in that problem. Find their common final velocity. Compare the initial and final kinetic energies.
Identify the product and account for its formation : Nitration of the aromatic ring of 4-methoxyacetophenone yields only one product. Identify that product and account for its formation.
Calculate the ph of the solution that results nh3 : Calculate the pH of the solution that results when 40.0 mL of 0.12 M NH3 is a) Diluted to 20.0 mL with distilled water. b) Mixed with 20.0 mL of 0.25 M HCl c) Mixed with 20.0 mL of 0.30 M HCl solution d) Mixed with 20.0 mL of 0.20 M NH4Cl
How does the changes in momentum : What is the final velocity of glider A. How does the changes in momentum and velocity compare for the two gliders?

Reviews

Write a Review

Chemistry Questions & Answers

  State what change in temperature measure

If you were to combine a 200.0mL aqueous solution of 0.75M NaHCO3 with 200.0mL of 0.50M CaCl2 in a constant pressure calorimeter, what change in temperature would you measure?

  Explain what are the economics of manufacturing a drug

What are the economics of manufacturing a drug either as a racemic mixture or in its biologically active form?

  The enzymes used in this experiment are only a partially

the enzymes used in this experiment are only a partially purified pyruvate kinase preparation. this is because complete

  State and draw a titration curve for both of these peptides

Draw a titration curve for both of these peptides. Be sure to label the axes properly, indicate the pKa values, the equivalence points and the buffering regions.

  Define the hybridization of the indicated atom

Give the hybridization of the indicated atom in the following: (first draw the Lewis structure for each) a. Carbon in OCCl2

  Calculate the partial pressure of each gas

Problem- A deep-sea diver uses a gas cylinder with a volume of 10.0 Land a content of 52.2g of O2 and 31.6g of He. Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 15 degrees Celsius.

  Explain what is the concentration of a solution of pigment x

If 1.0 μg/ml of pigment X shows an absorbance of 0.059 at 370 nm, then what is the concentration of a solution of pigment X that shows an absorbance of 0.443 at 370 nm? (Assume linearity.)

  What is the concentration of unknown hcl solution

it is observed that a volume of 29.15 mL of KOH was neede to complete the process of titration. Determine what is the concentration of this unknown HCl solution?

  Explain completely thermally decomposed in the procedure

The sample is not completely thermally decomposed in the procedure. Will the mole ratio of CaO to CO2 be too high or too low? Explain

  Compute the ph at the equivalence point for the titration

Calculate the pH at the equivalence point for the titration of 0.230 M methylamine (CH3NH2) with 0.230 M HCl. The Kb of methylamine is 5.0× 10-4.

  What is the density of a gas in gl that has a molecular

question what is the density of a gas in gl that has a molecular weight of 144 if the temperature and pressure is 25

  Find out what will be the mole fraction of ethanol

calculate how much CaCN2 is required to form 12.6 moles of ammonia? Given that the percent yield is 65.8%?

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