# Questions tagged [stoichiometry]

Stoichiometry refers to the relationship between the amounts of substances of the reactants and the amount of substances of the formed products. This tag should be used for specific questions about chemical reaction equations.

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### My question is about stoichiometry, limiting reagent problems [closed]

So I'm really struggling with this particular concept of these problems. I know how to convert to moler mass and all that, but I don't know how to do the ratio part, I can do them when the ratio is 1/...
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### Moles of Sodium Peroxoborate

The question involves the addition of $\pu{0.15 g}$ of an already prepared sample of sodium peroxoborate which is added to $\pu{100 mL}$ of $\pu{1 M}$ $\ce{H2SO4}$ and $\pu{2 g}$ of $\ce{KI}$. The ...
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### Find the Relative Error in the Mass of the Product

I have the following question, A student was given the assignment of $4.00$ $\pu{mL}$ of $0.50$ $\pu{M}$ $\ce{KI}$ with $16.00$ $\pu{mL}$ of $0.50$ $\pu{M}$ $\ce{Pb(NO3)2}$ in a stoichiometry ...
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### Grams of bicarbonate vs realeased CO2?

So, it's been a good two years since I've done chemistry and I have my first university lab in a few days and I'm sort of freaking out because I can't even remember how to do stoichiometry properly. ...
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### Why one gramm of O and one gramm of O2 icludes same amount of oxygen atoms? [closed]

So there is a problem I can't understand why one gram of O and one gram of O2 includes same amount of oxygen atoms.
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### Atomic weights of non-molecular and non-stoichiometric compounds [duplicate]

Consider a composition such as $\ce{FeCo4Sb12}$. The atomic weight for a mole of substance is usually simply calculated by looking up the atomic weights (g/mole) for each involved element and adding ...
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### Conservation rule in closed systems

In a closed system the reacting species interconvert but do not leave the system. Therefore the amounts of different species in the system would be bound by a conservation rule. A simple example: ...