Explain what is the mass fraction of kr

Assignment Help Chemistry
Reference no: EM13288216

A 1.00 L flask at 298 K contains a mixture of Kr and N2 with a total pressure of 0.940 atm. If the mole fraction of Kr is 0.455, what is the mass fraction of Kr?

Reference no: EM13288216

Questions Cloud

What is the weight of the apple on the moon : The gravitational acceleration on the Moon is a sixth of that on Earth. The weight of an apple is 1.03 N on Earth. What is the weight of the apple on the Moon
Explain the label on a bottle of concentrated hcl : The label on a bottle of concentrated HCl says the contents are 36% HCl by mass and have a density of 1.179 g/mL. What is the Molarity of the Conc. HCl.
What is the new range : In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that , What is the new range
Contrast the utility of a bjtversus mos transistor for input : The input voltages are inthe range of a few micro volts. Contrast the utility of a BJTversus a MOS transistor for this input stage. How would your choice be different if the application were for a low impedance hall effect sensor used in a wheel r..
Explain what is the mass fraction of kr : A 1.00 L flask at 298 K contains a mixture of Kr and N2 with a total pressure of 0.940 atm. If the mole fraction of Kr is 0.455, what is the mass fraction of Kr
What is the most expensive car she can purchase : Assume her payments will be made at the end of each year 1-4. If Tori's old car can be traded for $3324, which is her down payment, what is the most expensive car she can purchase?
Explain what is the concentration of the weak acid : Titration of a 20.00 mL sample of a monoprotic weak acid requires 9.86 mL of 0.04899 M NaOH to reach the equivalence point. What is the concentration of the weak acid
Determine what is the time constant for charging of devices : Using the devices above, please construct the 555circuit.  use circuit-building software you want andmeasure and record the frequency and the duty cylcle of theoutput. Also, include the picture of the constructed circuit.
Find the normal force exerted on the motorcycle by the track : As part of a circuit act, a person drives a motorcycle with constant speed v around the inside of a vertical track of radius r. find the normal force exerted on the motorcycle by the track

Reviews

Write a Review

Chemistry Questions & Answers

  Explain what is the initial concentration of unknown acid

The solution filtered , then we took 25 mL of this unknown acid for titration. we use NaOH base for titration ,the volum of titrated base when it reach the equivalence point was 3.2 mL . and the concentration of NaOH is 0.1 M.

  Explain chlorine can be generated by heating

Chlorine can be generated by heating together calcium hypochlorite and hydrochloric acid. Calcium chloride and water are also formed.

  Explain how many grams of cesium are in compound

A compound of iodine and cesium contains 69.75 g of metal and 66.20 g of nonmetal. How many grams of cesium are in 38.52 g of compound? How many grams of iodine

  Explain mixture of solid nickel oxide

If a mixture of solid nickel(II) oxide and 0.11M carbon monoxide is allowed to come to equilibrium at 1500 K, what will be the equilibrium concentration of CO2

  Compute the molar absorptivity of species y

A 0.062 M aqueous sample of species y was analyzed by atomic absorption spectroscopy at 525 nm and in a 1.00-cm cell and yielded a %T value of 70.19 % . Calculate the molar absorptivity of species y.

  Find out the factor a as a function of n

Burning a straight chain alkane in oxygen gas yields a reaction: CnH(2n+2) + aO2 = bCO2 + cH2O determine the factor "a" as a function of "n" for equations where n is equal to or greater than 1.

  What is the new boiling point of water

What is the new boiling point of water if you add 188 grams of magnesium chloride to 1250 g of water.

  State how many phosphoester bonds and phosphoanhydride bonds

how many phosphoester bonds and phosphoanhydride bonds are in adenosine

  What is the molarity of the hydrofluoric acid solution

In a Titration 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00mL hydrofluoric acid solution. What is the molarity of the hydrofluoric acid solution?

  Explain what each test reveals about an unknown halide ion

What each test reveals about an unknown halide ion? Suggest another test which would confirm that identity. 1.Addition of Cl2 and CH2Cl2 to an aqueous solution of an unknown halide ion led to a dark CH2Cl2 layer.

  Explain the ideal gas law for one mole of gas

The ideal gas law (for one mole of gas) may be used to express pressure as a function of volume and temperature, ie p=p(V,T). Use this and the expression for the above total differential of G to obtain expressions for the partial derivatives natur..

  Explain what are the equilibrium concentrations of monomer

What are the equilibrium concentrations of monomer and dimer at 25?C in a solution prepared by dissolving 3.4×10?2mol of pure acetic acid in enough benzene to make

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