Study the balanced equation.
3O_2=2O_3
When 4.26 x 1016 mol of oxygen (O) are converted into ozone, how many mol of the pollutant (O3) are formed?
4 answers
I showed you how to do this before I went to bed last night. What's the problem?
I do not understand how to do it still.
OK. Let's forget about oxygen and ozone for the moment and do another one. Let's make fizzy water. Carbon dioxide + water ==> carbonic acid.
CO2 + H2O ==> H2CO3
So if we have 1 mol CO2, we could convert it to 1 mol H2CO3. Right. Or if we had 4 mols CO2, we could convert it to 4 mols H2CO3. Or if we had 4.26 x 10^16 mols of CO2 we could convert it to 4.26 x 10^16 mols H2CO3. This is not black magic. You can see that the ratio of CO2 to H2CO3 is 1:1 so the number of mols CO2 will always equal to the number of mols of H2CO3 we can get. If you want to make an equation (which I did in the answer I gave you earlier), we use those coefficients which are 1 for CO2 and 1 for H2CO3 in this problem. That is mols CO2 initially x (1 mol H2CO3/1 mol CO2) = ? number of mols H2CO3 produced.
Another problem. Let's make lye. sodium + water = sodium hydroxide + hydrogen gas.
2Na + 2HOH ==> 2NaOH + H2
1 mol Na will produce how many mols NaOH. That's 1 mol Na x (2 mols NaOH/2 mol Na) = 1 mol NaOH produced.
How much H2 will be produced. That's 1 mol Na x (1 mol H2/2 mol Na) = 1/2 mol H2 gas.
How much water will be needed if we use 1 mol Na. That's 1 mol Na x (2 mol H2O/2 mol Na) = 1 mol H2O used.
How many mols H2 will be produced if we have 4.26 x 10^16 mols Na. That's 4.26 x 10^16 mols Na x (1 mol H2/2 mol Na) = 2.13 x 10^16 mols H2 gas.
Finally, if we had 3 whole oranges (you can read that oxygen) which would make 2 glasses orange juice (you can read that ozone), how many glasses of orange juice can you get from 4.26 x 10^16 whole oranges? 3 whole oranges ==> 2 glass Orange juice or
...............3O2 = 2O3
Can you take it from here? If you don't get it, EXPLAIN what you don't understand. Just saying you don't understand isn't much help
Don't be intimidated by chemistry and numbers. There is nothing magic about oxygen and ozone because the same reasoning works with whole oranges making orange juice or any other set of conversion factors you wish to use. All you are doing is converting mols something to mols of something else and you're using the coefficients in the equation to do it. You do the same thing when you convert pints to quarts to gallons or ounces to pounds to tons. But when you call it a mole students go blank. :-). Nope this helps a little.
CO2 + H2O ==> H2CO3
So if we have 1 mol CO2, we could convert it to 1 mol H2CO3. Right. Or if we had 4 mols CO2, we could convert it to 4 mols H2CO3. Or if we had 4.26 x 10^16 mols of CO2 we could convert it to 4.26 x 10^16 mols H2CO3. This is not black magic. You can see that the ratio of CO2 to H2CO3 is 1:1 so the number of mols CO2 will always equal to the number of mols of H2CO3 we can get. If you want to make an equation (which I did in the answer I gave you earlier), we use those coefficients which are 1 for CO2 and 1 for H2CO3 in this problem. That is mols CO2 initially x (1 mol H2CO3/1 mol CO2) = ? number of mols H2CO3 produced.
Another problem. Let's make lye. sodium + water = sodium hydroxide + hydrogen gas.
2Na + 2HOH ==> 2NaOH + H2
1 mol Na will produce how many mols NaOH. That's 1 mol Na x (2 mols NaOH/2 mol Na) = 1 mol NaOH produced.
How much H2 will be produced. That's 1 mol Na x (1 mol H2/2 mol Na) = 1/2 mol H2 gas.
How much water will be needed if we use 1 mol Na. That's 1 mol Na x (2 mol H2O/2 mol Na) = 1 mol H2O used.
How many mols H2 will be produced if we have 4.26 x 10^16 mols Na. That's 4.26 x 10^16 mols Na x (1 mol H2/2 mol Na) = 2.13 x 10^16 mols H2 gas.
Finally, if we had 3 whole oranges (you can read that oxygen) which would make 2 glasses orange juice (you can read that ozone), how many glasses of orange juice can you get from 4.26 x 10^16 whole oranges? 3 whole oranges ==> 2 glass Orange juice or
...............3O2 = 2O3
Can you take it from here? If you don't get it, EXPLAIN what you don't understand. Just saying you don't understand isn't much help
Don't be intimidated by chemistry and numbers. There is nothing magic about oxygen and ozone because the same reasoning works with whole oranges making orange juice or any other set of conversion factors you wish to use. All you are doing is converting mols something to mols of something else and you're using the coefficients in the equation to do it. You do the same thing when you convert pints to quarts to gallons or ounces to pounds to tons. But when you call it a mole students go blank. :-). Nope this helps a little.
Hope this helps a little.
1 answer