Chemistry students will use this as a tool to understand the current events that are occuring in the field of Chemistry.
Wednesday, March 12, 2008
Question
When finding our limiting reactant why do we always convert grams into moles? Why are we not able to go from grams of a substance to grams of another substance?
Grams always go to moles, or moles always go to grams. You just can't go grams to grams without putting moles in there. Basically if you did do grams to grams they are basically the same thing.
Moles to grams is like peanunt butter and jelly. This is the scientific way of doing it. Grams to grams is the same thing over again. It works better with moles to grams. Also you get the right answer.
Moles to grams is like syrup and waffles. You arent allowed to go from grams to grams without using moles in there somewhere. This way you get the right answer using the moles
You need to cancel out the grams and moles in an equation. You can't go from grams to grams or moles to moles because they don't cancel. If you go from grams to moles then you know that they canceled.
If you go from grams to grams you will get the wrong answer. You have to put moles in there so that everything cancels out. ITs just the scientific way of doing it.
Grams always going to go into moles, or moles are always going to go into grams. You can'tgo grams to grams without useing moles. They are basiclly the same thing.
We need to cancel out the grams so that we can go to the weight of the reactant. We can't go to grams to grams because things dont cancel out. When you go grams to moles this means everything will cancel to equal a good number.
Grams are hard to compare because each element and compound have different masses. Moles are easy to compare. You can easily determine the limiting and excess reactants from moles.
You have to have moles and grams. THey just always go together. You can't have one withoub being able to convert to the other. THat's how you get the right answers.
You can always change grams to moles and moles into grams. If you are in moles then you have to cross out your moles so they cancel out. You can't go from grams of one substance to another because it is not the same number of moles.
We change it to moles to find wich one is bigger or smaller than 1 mole. the reson 1mole is the same number of atoms for any eliment or compoun but they don't have the same mass as each other
Grams always go to moles and or moles always go to grams. It is the scientific way of doing it. If you go grams to grams it is basically the same thing and cant convert with out moles.
18 comments:
Grams always go to moles, or moles always go to grams. You just can't go grams to grams without putting moles in there. Basically if you did do grams to grams they are basically the same thing.
Moles to grams is like peanunt butter and jelly. This is the scientific way of doing it. Grams to grams is the same thing over again. It works better with moles to grams. Also you get the right answer.
Moles to grams is like syrup and waffles. You arent allowed to go from grams to grams without using moles in there somewhere. This way you get the right answer using the moles
Because stuff needs to cancel out. These analogies are very accurate. Grams to moles is just the way it must be no matter what.
You need to cancel out the grams and moles in an equation. You can't go from grams to grams or moles to moles because they don't cancel. If you go from grams to moles then you know that they canceled.
If you go from grams to grams you will get the wrong answer. You have to put moles in there so that everything cancels out. ITs just the scientific way of doing it.
Grams always going to go into moles, or moles are always going to go into grams. You can'tgo grams to grams without useing moles. They are basiclly the same thing.
Grams have to be in moles. They work togeather the best. If you go grams to grams it wont work correctly.
We need to cancel out the grams so that we can go to the weight of the reactant. We can't go to grams to grams because things dont cancel out. When you go grams to moles this means everything will cancel to equal a good number.
Because we have to. You have to switch it to mols. You just need to do it.
Grams are hard to compare because each element and compound have different masses. Moles are easy to compare. You can easily determine the limiting and excess reactants from moles.
You have to have moles and grams. THey just always go together. You can't have one withoub being able to convert to the other. THat's how you get the right answers.
You can always change grams to moles and moles into grams. If you are in moles then you have to cross out your moles so they cancel out. You can't go from grams of one substance to another because it is not the same number of moles.
Grams are hard to see the difference. It is easier in moles. You can't because different substances have different masses so it doesn't work.
We change it to moles to find wich one is bigger or smaller than 1 mole. the reson 1mole is the same number of atoms for any eliment or compoun but they don't have the same mass as each other
Grams always go to moles and or moles always go to grams. It is the scientific way of doing it. If you go grams to grams it is basically the same thing and cant convert with out moles.
Without using grams to moles, or moles to grams, nothing will cancel out. And you wont get the right answer without having it cancel.
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