Formula Flashcards

1
Q

What is the formula to work out mass?

A

Mass(g) = Mr x n

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2
Q

What is the formula to work out Concentration?

A

Concentration(moldm^-3) = n / volume(dm^3)

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3
Q

What is the formula for percentage yield?

A

Percentage yield = (actual/theory) x 100

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4
Q

What is the Ideal gas equation? What does each letter stand for and what are they measured in?

A
pv = nRT
p = Pressure (pa)
v = Volume (m^3)
n = no. of moles
T = Temperature (Kelvin)
R = Gas constant (8.31 JK^-1 mol^-1)
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5
Q

What is the general formula for an alkene?

A

C(n)H(2n)

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6
Q

What is the general formula for an alkane?

A

C(n)H(2n+2)

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7
Q

What is the general formula for an cycloalkane?

A

C(n)H(2n)

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8
Q

What is the formula for entropy?

A

∆S = ∑S(Products) - ∑S(reactants)

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9
Q

What is the formula for change in entropy surroundings?

A

∆S(Surroundings) = (-∆H(System))/ T(Kelvin)

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