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Application of Gay-Lussac’s Law of Combining Volumes

Gay Lussac’s of combining volumes states that gases react in simple ratio with one another and to volumes of the products provided that temperature and pressure remain constant. In this article, you will understand how to apply this law in calculation by studying the following examples below: 1.     2H 2 + O 2 → H 2 O In the reaction above, what volume of hydrogen would be left over when 300cm 3 of oxygen and hydrogen are exploded in a sealed tube?   1cm 3 of oxygen = 2cm 3 of hydrogen 300cm 3 of oxygen = 2 x 300 = 600cm 3 Volume of left over = 1000 – 600 = 400cm 3 2.     Calculate the volume of carbon (II) oxide required to react with 40cm 3 of oxygen. 2CO + O 2 → 2CO 2 1cm 3 of oxygen = 2cm 3 of CO 40cm 3 of oxygen = 2 x 40 = 80cm 3 3.     Calculate the volume of residual gases that would be produced when 100cm 3 of sulphur (IV) oxide reacts with 20cm 3 of oxygen    2SO 2 + O 2 → 2SO 3 1cm 3 of O 2 = 2cm 3 20cm 3 of O 2 = 2 x 20 = 40cm 3
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How to change mobile browser to Desktop site

   


    Most mobile phones are optimized to make it possible to access mobile-friendly browsers. These mobile-friendly browsers do not display some features of the sites which you are viewing especially if the site is an old version. But, you can still access or view the desktop site when your laptop is not available.

   This is very easy and it can be done in two ways

  • By enabling desktop site for all sites
  • Enabling a desktop site for a specific site

By enabling desktop site for all site

To make desktop site view default for all sites follow these steps:


  • Step 1: Open the google chrome browser on your phone 

             



  • Step 2: Click on the three vertical dots button at the top right corner

                     





  • Step 3: scroll down and click settings 

        



  • Step 4: scroll down and click site settings

          

                                 


       

  • Step 5: scroll down to the bottom of the menu options and click on the desktop site

                                                                   





  • Step 6: click on the desktop site switch to turn it on

            


Enabling desktop site for a specific site

If you want to enable a desktop site on a specific site follow these steps:

  • Step 1: Open the google chrome browser 

 

  • Step 2: visit the site you want to view in desktop site mode

          

  • Step 3: click on the three vertical dots menu button at the top right corner

          



  • Step 4: scroll down the menu options and click on the desktop site box


 How to enable desktop site on Opera mobile browser

To enable the desktop site on the opera mobile browser, follow these steps:

  • Step 1: lunch opera mobile browser on your mobile phone

          



  • Step 2: Click on your profile picture in the bottom right corner

        



  • Step 3: click on the setting gear icon

       



  • Step 4: Scroll down to the content section and click on the default user agent  

           





  • Step 5: select desktop 

 



  

 

   

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Application of Gay-Lussac’s Law of Combining Volumes

Gay Lussac’s of combining volumes states that gases react in simple ratio with one another and to volumes of the products provided that temperature and pressure remain constant. In this article, you will understand how to apply this law in calculation by studying the following examples below: 1.     2H 2 + O 2 → H 2 O In the reaction above, what volume of hydrogen would be left over when 300cm 3 of oxygen and hydrogen are exploded in a sealed tube?   1cm 3 of oxygen = 2cm 3 of hydrogen 300cm 3 of oxygen = 2 x 300 = 600cm 3 Volume of left over = 1000 – 600 = 400cm 3 2.     Calculate the volume of carbon (II) oxide required to react with 40cm 3 of oxygen. 2CO + O 2 → 2CO 2 1cm 3 of oxygen = 2cm 3 of CO 40cm 3 of oxygen = 2 x 40 = 80cm 3 3.     Calculate the volume of residual gases that would be produced when 100cm 3 of sulphur (IV) oxide reacts with 20cm 3 of oxygen    2SO 2 + O 2 → 2SO 3 1cm 3 of O 2 = 2cm 3 20cm 3 of O 2 = 2 x 20 = 40cm 3
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Qualitative Analysis of Ammonium Trioxocarbonate (IV)

              Ammonium trioxocarbonate(IV) is an electrovalent compound just like any other ammonium salts. As an electrovalent compound, it has NH + (ammonium ion) as the cation and CO 3 2- (trioxocarbonate IV ion or radical) as the anion.                          (NH 4 ) 2 CO 3   -------    2NH 4 + + CO 3 2- Ammonium trioxocarbonate IV is a white crystal salt and it is very soluble in water like all other ammonium salts. It decomposes on heating to produce ammonium, water and carbon (IV)oxide.                      (NH 4 + ) 2 CO 3   ----------   2NH 3(g) + H 2 O (I) + CO 2(g)          Test for the Cation in Ammonium Trioxocarbonate IV To test the unknown sample, put the sample into a boiling tube, add a base or alkali into the boiling tube and heat gently.   Note: All ammonium salts liberate ammonia when heated with base or alkali.         (NH 4 ) 2 CO 3(s) + 2NaOH (aq) ----------   Na 2 CO 3 (aq) + H 2 O (l) + 2NH 3(g) Test the gas liberated with damp li
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