Calculate the molar mass of the cfc

Assignment Help Chemistry
Reference no: EM13111760

(a) Aqueous lithium hydroxide solution is used to purify air in spacecrafts and submarines because it absorbs carbon dioxide according to the equation:
2LiOH(aq) + CO2(g) -> Li2CO3(aq) + H2O(l)

The pressure of CO2 in a cabin with a volume of 2.4 x 105 L is 7.9 x 10-3 atm at 312 K. A solution of LiOH of negligible volume is introduced into the cabin and the pressure of CO2 is reduced to 1.2 x 10-4 atm. How many grams of lithium carbonate are formed by this process?

b) Chlorofluorocarbon (CFC) gases and volatile liquids sold commercially as Freons are still used in refrigeration units. A chemist found that a certain amount of a CFC gas required 186 seconds to effuse through a porous plug when the pressure was held constant. The same amount of carbon dioxide required 112 seconds. Calculate the molar mass of the CFC.

 

Reference no: EM13111760

Questions Cloud

Information about means and proportions : In the Big Ten (the NCAA sports league) a sample showed that only 267 out of 584 freshmen football players graduated within 6 years. (a) At (alpha) a = .05
Calculating final volume of the bubble : A small bubble rises from the bottom of a lake, where the temperature and pressure are 8ºC and 6.4 atm, to the water's surface, where the temperature is 25ºC and pressure is 1.0 atm.
Confidence level and hypothesis testing : A trans-oceanic airline conducted a study to determine whether the average weight of baggage checked by a passenger differs significantly from 45 pounds.
Difference-null-alternative hypothesis statements : What is the difference between the null and alternative hypothesis statements in one tailed and two tailed tests? How can manufacturing companies use the standard normal distribution to determine quality control of their products?
Calculate the molar mass of the cfc : A chemist found that a certain amount of a CFC gas required 186 seconds to effuse through a porous plug when the pressure was held constant.
Hypothesis testing-difference between means : We wish to compare the average sales in two shops, to see if the population mean of the first one is higher than the second one. One shop had 100 sales averaging $94, with a standard deviation of $40.
Explain how adjusting the ph of your reaction flask : Explain how adjusting the pH of your reaction flask can be used to artificially bypass the effects of the inhibitors used in your experiments. What would you add to your flask if you were actually going to perform this experiment?
Hypothesis article analysis : Prepare an analysis of your selected article. Start by identifying and summarizing the hypothesis described in the article. Then explain whether the hypothesis was rejected or accepted, and what the implications of this finding are for the study.
Provide an example of a reduction reaction : Reduction often is referred to as the addition of hydrogens to a compound. It is more chemically correct to refer to reduction as the addition of electrons. Provide an example of a reduction reaction performed by cells in which hydrogen is not add..

Reviews

Write a Review

Chemistry Questions & Answers

  Acid base titrations and neutralization

The _______ of a titration occurs when the indicator changes color.

  Determine the kinetic energy of the departing electron

Radiation with a 58.4 nm of wavelength interacts with a H 2 (hydrogen atom)and induces the ejection of an electron then determine the kinetic energy of the departing electron express your answer in eV?

  Determine what percent by weight of sodium carbonate

Determine what percent by weight of sodium carbonate does it contain If the specific gravity of the sodium carbonate  solution = 1.25,?

  Determine how many milligrams of h2o are present

Determine how many milligrams of H 2 O are present in sample If the freezing point of 100.0 grams of sample of 2-methyl-2-propanol =24.59C, (2methyl-2propanol has Kf=4.68Ckg/mol

  Seventy five conversion of carbon monoxide

Determine at what temperature should the reaction be run to get a seventy five conversion of carbon monoxide?

  What are the concentrations of each component

what are the concentrations of each component If a 10.00L vessel has 2.50 mol CO 2 and H 2 O, and 5.00 mol CO 2 and H 2 gas at 588°K, (Kc = 31.4 at 588°K), at equilibrium?

  Brightness of a wavelength undergoing rayleigh scattering

Calculate brightness of a wavelength undergoing Rayleigh scattering.

  Determine the volume of baryta

Determine the volume of 0.M baryta (Barium hydroxide is the chemical compound with the formula Ba(OH) 2 ) that is needed to neutralize 35 ml of 0.2M phosphoric acid (H 3 PO 4 ), ?

  How many moles of molecular hydrogen are used per mole

Determine that how many moles of molecular hydrogen are used per mole of the precatalyst in order to convert it entirely to platinum metal?

  Find out how many grams of gasoline will fill a tank

Find out How many grams of gasoline will fill a 12.5gal tank if a particular brand of gasoline has the density of 0.737 g/mL at the temperature of 25 degree Celsius?

  Designing and preparing aqueous buffer solution

Designing and preparing aqueous buffer solution with the pH indicated - Give complete details of the design and preparation of an aqueous buffer solution (volume 100ml) with the pH indicated.

  Calculate the current for diffusion-controlled electrolysis

Calculate how many atoms of potassium A three  mole sample of K2S would have and Calculate the current for diffusion-controlled electrolysis

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