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Questions and Answers
To convert from grams of a known substance to grams of an unknown substance, one must first convert grams known to ______ known, then to moles unknown, and finally to grams unknown, using the mole ratio and molar mass.
To convert from grams of a known substance to grams of an unknown substance, one must first convert grams known to ______ known, then to moles unknown, and finally to grams unknown, using the mole ratio and molar mass.
moles
In the balanced chemical equation $2Al_2O_3 -> 4Al + 3O_2$, the mole ratio between $Al_2O_3$ and $O_2$ is ______, which is crucial for stoichiometric calculations.
In the balanced chemical equation $2Al_2O_3 -> 4Al + 3O_2$, the mole ratio between $Al_2O_3$ and $O_2$ is ______, which is crucial for stoichiometric calculations.
2:3
If you have 3 moles of $Al$, according to the reaction $2Al_2O_3 -> 4Al + 3O_2$ , you would use the mole ratio to calculate that you need ______ moles of $Al_2O_3$.
If you have 3 moles of $Al$, according to the reaction $2Al_2O_3 -> 4Al + 3O_2$ , you would use the mole ratio to calculate that you need ______ moles of $Al_2O_3$.
1.5
Given 28.8 grams of sulfur (S), to convert this mass to moles, you divide by the ______ of sulfur, which is approximately 32.066 g/mol.
Given 28.8 grams of sulfur (S), to convert this mass to moles, you divide by the ______ of sulfur, which is approximately 32.066 g/mol.
To determine the number of moles of an unknown substance, you multiply the moles of the given substance by the ratio of the ______ of the unknown substance to the coefficient of the known substance.
To determine the number of moles of an unknown substance, you multiply the moles of the given substance by the ratio of the ______ of the unknown substance to the coefficient of the known substance.
To convert from mass to moles, you divide the mass of the given substance by its ______, then multiply by a mole conversion factor if necessary.
To convert from mass to moles, you divide the mass of the given substance by its ______, then multiply by a mole conversion factor if necessary.
When determining the moles of water produced from $1.45$ moles of propane ($C_3H_8$) in the reaction $C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O$, the stoichiometric ratio used is ______.
When determining the moles of water produced from $1.45$ moles of propane ($C_3H_8$) in the reaction $C_3H_8 + 5O_2 \rightarrow 3CO_2 + 4H_2O$, the stoichiometric ratio used is ______.
In the mass to mass conversion, $\frac{mass \space of \space (known)}{mm \space (g)} \times \frac{mol \space ratio}{1 \space mol} = moles = mass \space unknown$, the mm (g) represents the ______ of the known substance.
In the mass to mass conversion, $\frac{mass \space of \space (known)}{mm \space (g)} \times \frac{mol \space ratio}{1 \space mol} = moles = mass \space unknown$, the mm (g) represents the ______ of the known substance.
To calculate the mass of a substance given the number of moles, you multiply the number of moles by the substance's ______.
To calculate the mass of a substance given the number of moles, you multiply the number of moles by the substance's ______.
When converting mass of carbon dioxide ($CO_2$) to moles of propane ($C_3H_8$) using the equation, $20 \space g \space CO_2 \frac{1 \space mol}{44 \space g \space CO_2} \times \frac{1 \space mol \space C_3H_8}{3 \space mol \space CO_2} = $, this formula follows the ______ approach.
When converting mass of carbon dioxide ($CO_2$) to moles of propane ($C_3H_8$) using the equation, $20 \space g \space CO_2 \frac{1 \space mol}{44 \space g \space CO_2} \times \frac{1 \space mol \space C_3H_8}{3 \space mol \space CO_2} = $, this formula follows the ______ approach.
Flashcards
What is a Mole?
What is a Mole?
The amount of a substance containing the same number of particles as there are atoms in 12 grams of carbon-12.
What is a Mole Ratio?
What is a Mole Ratio?
A conversion factor derived from the coefficients of a balanced chemical equation, used to convert between moles of reactants and products.
How to go from Grams Known → Grams Unknown
How to go from Grams Known → Grams Unknown
Convert grams to moles using molar mass, then use the mole ratio to convert to moles of the unknown, and finally convert to grams using molar mass.
How to convert Moles (Known) → Moles (Unknown)
How to convert Moles (Known) → Moles (Unknown)
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What is Molar Mass (MM)?
What is Molar Mass (MM)?
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Mass to Moles Conversion
Mass to Moles Conversion
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Moles to Mass Conversion
Moles to Mass Conversion
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Mass to Mass Conversion
Mass to Mass Conversion
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Moles to Mass
Moles to Mass
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Mole Ratio Application
Mole Ratio Application
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