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Chemistry (C3) > Equations/Formulas > Flashcards

Equations/Formulas Flashcards

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1
Q

What is the equation for relative atomic mass?

A

Relative atomic mass= total mass of all atoms of an element / total number of atoms of that element

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2
Q

How do you calculate the % mass of an element in a compound?

A

% mass of element in a compound= Ar x number of atoms of that element / Mr of the compound x100

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3
Q

What is the equation for moles?

A

Moles = mass / Mr

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4
Q

How do you calculate concentration?(mass)

A

Concentration = Mass / Volume

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5
Q

How do you calculate concentration? (moles)

A

Concentration = Moles / Volume

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6
Q

What is the equation for percentage yeild?

A

Percentage yield = Actual yield / Theoretical yield x 100

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7
Q

How do you calculate % atom economy?

A

% Atom economy = Mr of desired products / Mr of total products x 100

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8
Q

How do you calculate the volume of a gas?

A

Volume of gas = Moles x 24

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Chemistry (C3) (5 decks)

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