State the molar mass and the molecular formula of the solid

Assignment Help Chemistry
Reference no: EM13158012

The elemental analysis of an organic solid extracted from gum arabic showed that it contained 40.0 % C, 6.7% H, and 53.3% of O. A solution of 0.583g of solid in 27.5g of the solvent diphenyl gave a freezing point depression of 1.41'C. Calculate the molar mass and the molecular formula of the solid. (Ki for diphenl is 8.00'C/m)

Reference no: EM13158012

Questions Cloud

Explain which intellectual property appears most difficult : Explain which intellectual property appears the most difficult for a business owner to protect. Provide support for your answer.
List out three policy rules that the fed might follow : List out three policy rules that the Fed might follow. Which of these would you advocate? Why?
Describe the lucas critique : Describe the Lucas critique. Why might the level of government debt affect the government's incentives regarding money creation?
What price will he sell services at : number of items dry cleaned and p is the price of each item in dollars. What price will he sell services at?
State the molar mass and the molecular formula of the solid : Calculate the molar mass and the molecular formula of the solid. (Ki for diphenl is 8.00'C/m)
Calculate the minimum volume of distilled water, in liters, : Calculate the minimum volume of distilled water, in liters, necessary to completely dissolve a 7.5 g sample of AgBr (s) at 298K. The molar mass of AgBr is 188 g mol
State a cube of metal which looks like gold : A cube of metal which looks like gold (Au, 19.32 g/cm3) is suspected by a modern Archimedes of being either iron (Fe, 7.90 g/cm3) coated with gold or aluminum
State aqueous and organic layer : we then titrated both the aqueous and organic layer. for organic layer, we used 0.1M (S2O3)2- for aqueous layer, we used 0.01M (S203)2- find concentration [I]2 (subscript 2) for aqueous and organic layer
How much energy is required to raise the temperature : Aluminum has a specific heat of 0.900 J/g·°C. How much energy is required to raise the temperature of 160. g of aluminum from 20.0°C to 183.0°C?

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the ratio of the electrophoretic mobilities

Consider two DNA molecules: one 400 base pairs long, the other 800 base pairs long. Assuming that each is a rigid rod of diameter 25 Å, with a length of 3.4 Å per base pai.

  How many grams of h3po4 are present

How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?

  Explain insulated cylinder fitted with a frictionless piston

An incompressible fluid (p(ro)= const) is contained in an insulated cylinder fitted with a frictionless piston. Can energy as work be transferred to the fluid?

  What is the volume of stp

a sample of gas has a volume of 0.106 L at 37 degrees Celsius and 0.920 atm. what is the volume of stp (1 atm and 0 degrees Celsius)

  Find origin of the charge neutrality requirement in solids

What is the origin of the charge neutrality requirement in solids? Why must solids have charge neutrality in the bulk,

  What is the ph of the solution

What is the pH of the solution at the equivalence point for the titration of 100 mL of a .786 M HCO2H solution with a .786 M Solution of sodium Hydroxide? Formic acid has a Ka=1.80*10^-4

  What was the percentage yield

When 4.03 g of CH3OH was mixed with 6.33 g of O2 and ignited, 3.92 g of CO2 was obtained. What was the percentage yield?

  What is the molarity of sulfuric acid

When 25.0 mL of 0.400 M H2SO4 and 50.0 mL of 0.850 M H2SO4 are mixed, what is the molarity of sulfuric acid in the final solution?

  Calculate the potential difference between inside

The concentration of potassium ions inside a nerve cell is around 20 to 30 times that outside the cell. Calculate the potential difference between inside

  Calculate the new volume of the sample gas

If 525 mL of gas at 25 degrees is heated to 50 degrees at constant pressure, calculate the new volume of the sample gas.

  Calculate the amount of heat required to completely sublime

Calculate the amount of heat required to completely sublime 14.0 g of solid dry ice (Co2) at its sublimation temperature

  What is the molar mass of the compound

A 1.6 g sample of a molecular compound is dissolved in 104 g of tetrachloromethane (carbon tetrachloride). The normal boiling point of the solution is 61.51degreesC, the normal boiling point of CCl4 is 61.2degreesC. The boiling point constant for ..

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