Explain what is the molar mass of the unknown

Assignment Help Chemistry
Reference no: EM13672034

Chemist found the density of Freon-11 (CFCl3) to be 5.58 g/L under her experimental conditions. Her measurements showed that the density of an unknown gas was 4.38 g/L under the same conditions. Explain what is the molar mass of the unknown?

Reference no: EM13672034

Questions Cloud

Explain density of an unknown element in the gaseous state : The density of an unknown element in the gaseous state is 1.60 g/L at300 K and 1 atm. Which of the following could be the element
Define in which flask is the average kinetic energy greater : Define in which flask is the average kinetic energy greater. Define which gas would require the least amount of time to escape from a small pinhole leak in the flask
Explain a mixture of hydrogen gas and water vapor : Explain a mixture of hydrogen gas and water vapor has a total pressure of 738 mm Hg. If the partial pressure of water vapor is 17.5 mm Hg, Compute the mole fraction of hydrogen in the mixture.
Explain how long will it take for half of the oxygen : Explain a 3.0-Lsample of helium was placed in a container fitted with a porous membrane. Half of the helium effused through the membrane in 24 hours. A 3.0-L sample of oxygen was placed in an identical container. Explain how long will it take for ..
Explain what is the molar mass of the unknown : Chemist found the density of Freon-11 (CFCl3) to be 5.58 g/L under her experimental conditions. Her measurements showed that the density of an unknown gas was 4.38 g/L under the same conditions. Explain what is the molar mass of the unknown
Explain how much energy is contained in 1 mol : Explain how much energy is contained in 1 mol of the following: λ- ray photons with a wavelength of 2.60 * 10-5 nm? Express answer in kJ/mol
Explain what is the condensed electron configuration of pb+2 : Explain what is the condensed electron configuration of Pb+2. Take out of the configuration. Is it [Xe] 4f14 5d10 or do [Xe]6s2 4f14 5d10?
Explain the electrons in a shell n=5 sub shell : List all the possible electron addresses for the electrons in a shell n=5 sub shell. Presume you have enough electrons to fill in the shell completely.
Explain what will the gas pressure : A sample of 2.75 moles of carbon dioxide gas at 125°C and 248 torr occupies a volume of 275 L. Explain what will the gas pressure be if the volume is increased to 321 L at 125°C

Reviews

Write a Review

Chemistry Questions & Answers

  What is the total volume of gaseous products

What is the total volume of gaseous products, measured at 332°C and 732 torr, when an automobile engine burns 100. g C8H18 (a typical component of gasoline)? Answer needs to be in Liters

  Explain the number of changed nuclei is far smaller

Rb-87 decays with a half-life of 48.8 billion years to Sr-87. For short periods of time, there are so few decays that the number of changed nuclei is far smaller than the experimental error. The current limit on object ages therefore is 100,000,00..

  Explain what is the equilibrium concentration of scn

What is the equilibrium concentration of SCN if the Kc=400 for the following reaction at equilibrium if the [Fe3+]=2.00E-3 M and FeSCN 2+ = 4.00E-1M

  Depict a circuit diagram that subtracts two inputs signals

Draw a circuit diagram that subtracts two inputs signals and then amplifies the subtracted signal

  A sample of oxygen is collected in a 206 ml container over

a sample of oxygen is collected in a 206 ml container over water at 15c and the barometer reads 793 torr. what volume

  Explain a beaker containing an equimolar mixture

A galvanic cell is produced as follows: Left half-cell has a Pt wire dipping into a beaker containing an equimolar mixture of Cr+2 and Cr+3 . [Cr3+ + e-??Cr+2 E°-= -0.42 V] Right hand cell has a Tl rod immersed in 1.00 M TlClO4.

  Calculate the molarity of the hcl solution

A sample of 0.0020 mole of HCl is dissolved in water to make a 2000mL solution. Calculate the molarity of the HCl solution, the {H3O}, and the pH.

  How a serial dilution is performed

A solution (S1) of Yellow #5 has an absorbance far outside the linear region of Beer's Law. In order to determine the concentration of this solution, a serial dilution is performed. To make S2, 10 ml of S1 is diluted to 100 mL.

  State the net ionic equation for the reaction

A 0.879-g sample of a CaCl2*2H20/K2C2O4*H20 solid salt mixture is dissolved in-150mL of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered and air-dried, has a mass of 0.284 g.

  Calculate the ph of the solution

A 50.00-mL sample of 0.100 M KOH is titrated with 0.152 M HNO3. Calculate the pH of the solution after 52.00 mL of HNO3 is added.

  Calculate the percent of a strontium sample left after 100

calculate the percent of a strontium sample left after 100 years. the half-life of strontium-90 is 28.1

  Explain what is the oxidation state of ruthenium in each

Ruthenium can form complexes with chloride and water ligands with varying stoichiometers. Three such complexes are: [RuCl2(H2O)4]+ [RuCl3(H2O)3] [RuCl4(H2O)2] a.) What is the oxidation state of ruthenium in each of these complexes

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