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Chemistry > Stoichiometry > Flashcards

Stoichiometry Flashcards

1
Q

Percent by mass =

A

Find gram formula mass and find mass of part

part over whole times 100

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2
Q

Molecular formula

A
  1. Find gram formula mass
  2. Molecular formula mass over mass of empirical formula
  3. Use your result from step to to find new subscript
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3
Q

Number of moles needed for reaction

A

Proportion

moles in question/coefficient of that substance = unknown moles (X)/coefficient of sub 2

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3
Q

Number of moles =

A

number of grams over gram formula mass

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Chemistry (19 decks)

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