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

  Calculate how the amount of agcl will change

Calculate how the amount of AgCl(s )will change when the equilibrium is disturbed by Adding AgNO 3

  Define ozone and how it works as protective molecule

What is ozone and how it works as a protective molecule for our environment? What are the effects of CFCs on the ozone layer.

  Vulnerablity to attack by alkaline solutions

What is the alkali-aggregate reaction? List some of the rock types that are vulnerable to attack by alkaline solutions. Discuss the effect of aggregate size on the phenomenon.

  Determine the ph

Phosphorous acid, is an important compound in industry and agriculture, H3PO3(aq), is a diprotic oxyacid .determine the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq).

  Write the nuclear equation for the alpha decay

Write the nuclear equation for the alpha decay ( production of radioactive decay that may be considered radioactive waste products by the useful production of nuclear energy ) of each nuclide that are products of a nuclear power plant Rn-222, T..

  Determine the partial pressure of ar

Determine the partial pressure of Ar, argon gas in the flask and A flask is filled with 1.20 of argon Ar gas at the temperature of  twenty five degree Celsius.

  How many gm of dry nh4cl need to be combined

How many gm of dry NH4Cl need to be combined to 2.30L of a 0.300M solution of NH3, to prepare a buffer solution of pH 8.85.

  Evaluate the molecular formula of the compound

Application of Boyle's Law - Determine the molecular formula of the compound

  Determine how many grams of aluminum hydroxide

Determine how many grams of aluminum hydroxide will get from 18.2g of aluminum sulfide and determine the density of this newly minted penny

  Understanding of chemistry basics

Understanding of chemistry basics - which of the following is not changed by the activity of an enzyme during a chemical reaction?

  Determine how much ammonia would be formed

Determine how much Ammonia would be formed if 187 grams of calcium carbonate CaCO 3 are formed?

  Determine how much pv work is done

Hydrochloric acid HCl are permitted to react at atmospheric pressure and the volume change is -71.1 liters then determine how much PV work is done?

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