Lithium oxide (Li2O) can be used to remove water from air. The balanced equation for the reaction of lithium oxide with water is: Li2O(s) + H2O(g) --> 2 LiOH(s) List the steps that you would have to follow to determine how many grams of water can be removed from the air by 250 g of Li2O, and identify the links between quantities. (Example: If you wanted to convert from μmol of a substance to grams, the steps would be μmol --> mol --> grams. The link between μmol and mol would be 1 μmol = 1E–6 mol, and the link between mol and grams would be the molar mass.)

The mass of water that can be removed from air by given amount of lithium oxide is 149.94 grams

Explanation:

To calculate the number of moles, we use the equation:

    .....(1)

Given mass of lithium oxide = 250 g

Molar mass of lithium oxide = 30 g/mol

Putting values in equation 1, we get:

For the given chemical equation:

By Stoichiometry of the reaction:

1 mole of lithium oxide reacts with 1 mole of water

So, 8.33 moles of lithium oxide will react with = of water

Now, calculating the mass of water from equation 1, we get:

Molar mass of water = 18 g/mol

Moles of water = 8.33 moles

Putting values in equation 1, we get:

Hence, the mass of water that can be removed from air by given amount of lithium oxide is 149.94 grams

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.