Question

click and drag on elements in order
rank the steps used to solve mole - to - mole, mole - to - mass, and mass - to - mass stoichiometric problems from start to finish.
instructions
convert from moles of unknown to grams of unknown, if the answer is needed in grams. use the molar mass as the conversion factor.
balance the chemical equation and interpret the equation in terms of moles.
convert the amount of the given substance from grams to moles, if grams are given. use the inverse of the molar mass as the conversion factor.
convert from moles of the given substance to moles of the unknown substance. use the appropriate mole ratio as the conversion factor.
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Explanation:

Step1: Balance the chemical equation

The first step in stoichiometry is to balance the chemical equation and interpret it in terms of moles. This is because the mole ratios from the balanced equation are essential for subsequent calculations.
Step: Balance the chemical equation and interpret the equation in terms of moles.

Step2: Convert given mass to moles

If the given substance is in grams, we need to convert it to moles using the inverse of the molar mass as the conversion factor. This allows us to work with moles, which is the unit related to the balanced equation.
Step: Convert the amount of the given substance from grams to moles, if grams are given. Use the inverse of the molar mass as the conversion factor.

Step3: Convert moles of given to unknown

Using the mole ratio from the balanced equation, we convert moles of the given substance to moles of the unknown substance. This is the core stoichiometric conversion based on the reaction's stoichiometry.
Step: Convert from moles of the given substance to moles of the unknown substance. Use the appropriate mole ratio as the conversion factor.

Step4: Convert moles of unknown to mass

If the final answer needs to be in grams, we convert moles of the unknown substance to grams using the molar mass as the conversion factor.
Step: Convert from moles of unknown to grams of unknown, if the answer is needed in grams. Use the molar mass as the conversion factor.

Answer:

1. Balance the chemical equation and interpret the equation in terms of moles.
2. Convert the amount of the given substance from grams to moles, if grams are given. Use the inverse of the molar mass as the conversion factor.
3. Convert from moles of the given substance to moles of the unknown substance. Use the appropriate mole ratio as the conversion factor.
4. Convert from moles of unknown to grams of unknown, if the answer is needed in grams. Use the molar mass as the conversion factor.