I am COMPLETELY LOST for this one...dnt even know where to start
MOLES
1) Lithium Hydroxide reacts with Carbon Dioxide to form solid Lithium Carbonate and Water. How many grams of carbon dioxide can be absorbed by each 1 gram of lithium hydroxide.
2) Part of the SO2 (sulfur dioxide) that is introduced into the atmosphere by combustion of sulfur containing compounds ends up being converted to sulfuric acid.
I wrote the formula
2SO2 (g) + O2 (g) ----> 2H2SO4 (aq)
How much sulfuric acid can be formed from 5 moles of SO2 (sulfur dioxide), 2 moles of O2 (oxygen) and an unlimited quantity of water?
Thnx in ADVANCE!
One question to a post please.
For 1. This is a plain and simple stoichiometric problem.
Write the equation and balance it.
2LiOH + CO2 ==> Li2CO3 + H2O
Convert 1 g LiOH to mols.
Use the equation coefficients to convert mols of LiOH to mols CO2.
Convert mols CO2 to grams CO2.
Post your work if your get stuck.
Will post #2 later.
#2.
I will argue that your equation is not quite correct although using it will give you the correct answer.
2SO2 + O2 ==> 2SO3
SO3 + H2O ==> H2SO4
Probably you will not need help with this one after you finish the LiOH problem above. But if you do, post your thinking and we can help you through it.
For the first question:
1) Start by writing the balanced chemical equation:
2LiOH + CO2 → Li2CO3 + H2O
2) The equation tells us that for every 2 moles of LiOH, we get 1 mole of CO2.
Therefore, we need to find the number of moles of CO2 that can be absorbed by 1 gram of LiOH.
3) Convert the mass of LiOH to moles:
Molar mass of LiOH = (6.941 + 15.999 + 1.008) g/mol ≈ 23.015 g/mol
1 g LiOH ÷ 23.015 g/mol ≈ 0.043 mol LiOH
4) Use the mole ratio from the balanced equation to find the number of moles of CO2:
0.043 mol LiOH × (1 mol CO2 / 2 mol LiOH) = 0.0215 mol CO2
5) Convert moles of CO2 to grams:
Molar mass of CO2 = (12.011 + 15.999) g/mol ≈ 44.01 g/mol
0.0215 mol CO2 × 44.01 g/mol ≈ 0.946 g CO2
Therefore, approximately 0.946 grams of carbon dioxide can be absorbed by each 1 gram of lithium hydroxide.
For the second question:
1) As mentioned earlier, the correct overall equation is:
2SO2 + O2 → 2SO3
The SO3 formed can then react with water to form sulfuric acid:
SO3 + H2O → H2SO4
2) Given:
5 moles of SO2
2 moles of O2 (oxygen)
3) The equation coefficients tell us that for every 2 moles of SO2, we produce 2 moles of SO3, and for every 1 mole of SO3, we produce 1 mole of H2SO4. Therefore, the moles of H2SO4 formed will be the same as the moles of SO2.
4) Therefore, 5 moles of SO2 will produce 5 moles of H2SO4.
Remember to always double-check your calculations and units to ensure accuracy.