How many grams of oxygen would we need to consume to produce 13.9 grams of MgO

5.56g

Explanation:

Expression of the equation:

                      2Mg  +  O₂  →  2MgO

Mass of MgO = 13.9g

Solution:

         2Mg  +  O₂  →  2MgO

To solve this problem, let us find the number of moles of MgO from the given mas;

  Number of moles  =  

  molar mass of MgO  = 24 + 16  = 40g/mol

  Number of moles  =   = 0.35mole

Now,

           2 moles of MgO is produced from 1 mole of oxygen gas

          0.35 mole of MgO will be produced from mole of oxygen gas

                                                                               = 0.17mole of oxygen gas

So;

 Mass of oxygen gas  =  number of moles x molar mass

      Molar mass of O₂  = 2(16) = 32g/mol

  Mass of oxygen gas  = 0.17 x 32  = 5.56g

alienation, transformation, consumption, and the relativity of truth.

you can choose any one of these, they are all important themes.

these themes reflect the distinct sensibilities of both the modernist and postmodern aesthetic movements. (from google, you should paraphrase)

hope this !

- melanie

a. a clone will be physically identical to the original, but won’t be genetically identical

have a good day!