Posted by Kim on Tuesday, October 31, 2006 at 8:11pm.
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!
For Further Reading
I kinda got lost after i found 1 mole of LiOH to be equal to 24g
Kinda lost after that
Did I work this problem last night for you? If so let me know what you didn't understand so I will know where to start tonight.
Here is what I found on page 2; i.e., your two questions and my two answers.
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!
For Further Reading
CHEMISTRY HELP! - DrBob222, Tuesday, October 31, 2006 at 8:24pm
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.
CHEMISTRY HELP! - DrBob222, Tuesday, October 31, 2006 at 8:35pm
#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.
yes you did but i'm still kinda lost...don't really inderstand how to approach these questions.
if you could give me a FULL explanation, i would REALLLLYYYYYY appreciate it.
I got the part where i convert 1
I have responded above in your new post. If there is still a problem, let me know.
To solve the first question, you need to use stoichiometry. Here's the step-by-step approach:
1) Write the balanced equation:
2LiOH + CO2 -> Li2CO3 + H2O
2) Calculate the molar mass of LiOH. You mentioned in your post that it is 24 g/mol.
3) Convert 1 gram of LiOH to moles. To do this, divide the given mass (1g) by the molar mass of LiOH (24 g/mol). This gives you the number of moles of LiOH.
4) Use the coefficients from the balanced equation to determine the mole ratio between LiOH and CO2. In this case, the coefficient of LiOH is 2, and the coefficient of CO2 is 1. Since the mole ratio is 2:1, multiply the number of moles of LiOH by 1/2 to get the moles of CO2.
5) Convert the moles of CO2 to grams. To do this, multiply the moles of CO2 by the molar mass of CO2. The molar mass of CO2 is approximately 44 g/mol.
The final result will give you the number of grams of CO2 that can be absorbed by 1 gram of LiOH.
For the second question, you need to use a two-step reaction. Here's how to approach it:
1) Write the balanced equation:
2SO2 + O2 -> 2SO3
SO3 + H2O -> H2SO4
2) Start with the given number of moles of SO2 (5 moles) and use the coefficients from the balanced equation to determine the moles of SO3 that can be formed. Since the coefficient of SO2 is 2 and the coefficient of SO3 is 2, the mole ratio is 2:2. So the number of moles of SO3 will be the same as the number of moles of SO2.
3) Convert the moles of SO3 to moles of H2SO4. Since the coefficient of SO3 is 1 and the coefficient of H2SO4 is also 1, the mole ratio is 1:1.
4) Lastly, there is an unlimited supply of water, so the moles of H2SO4 will be the same as the moles of SO3.
The final result will give you the moles of sulfuric acid that can be formed.
I hope this helps! Let me know if you have any further questions.