# Use of stoichiometric relationships in calculations.

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#1
The specification says:
"Use of stoichiometric relationships in calculations."

What does this mean??
Thanks!
0
3 years ago
#2
(Original post by SophieDizzy)
The specification says:
"Use of stoichiometric relationships in calculations."

What does this mean??
Thanks!
Like using the numbers in the balanced equation to help you calculate the amount of moles of a compound, knowing that it's the ratio and that
0
3 years ago
#3
(Original post by SophieDizzy)
The specification says:
"Use of stoichiometric relationships in calculations."

What does this mean??
Thanks!
It basically means that you are required to use different formulas when calculating the final answer.
This is commonly seen in titration questions for example where you need to use more than one formula, e.g.
mass = moles x molar mass and moles = concentration x volume
There are different other examples used in ideal gas equation, atom economy, percentage yield etc.
0
3 years ago
#4
(Original post by oni176)
It basically means that you are required to use different formulas when calculating the final answer.
This is commonly seen in titration questions for example where you need to use more than one formula, e.g.
mass = moles x molar mass and moles = concentration x volume
There are different other examples used in ideal gas equation, atom economy, percentage yield etc.
it doesnt necessarily mean you have to use multiple formulae, using stoichiometry means using the ratio of the reactants and products, as seen in the reaction equation to find the number of moles and then mass etc, like the first replier said
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