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Final NB 2016-2017 Turley

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Table T<br />

Important Formulas and Equations<br />

d = density<br />

m<br />

Density d = m = mass<br />

V<br />

V = volume<br />

Mole Calculations number of moles =<br />

given mass<br />

gram-formula mass<br />

measured value – accepted value<br />

Percent Error % error = × 100<br />

accepted value<br />

mass of part<br />

Percent Composition % composition by mass = × 100<br />

mass of whole<br />

mass of solute<br />

parts per million = × 1000000<br />

mass of solution<br />

Concentration<br />

molarity =<br />

moles of solute<br />

liter of solution<br />

Combined Gas Law<br />

P<br />

P = pressure<br />

1<br />

V 1<br />

P<br />

= 2<br />

V 2<br />

V = volume<br />

T 1<br />

T 2 T = temperature<br />

M A<br />

= molarity of H + M B<br />

= molarity of OH –<br />

Titration M A<br />

V A<br />

= M B<br />

V B<br />

V A<br />

= volume of acid V B<br />

= volume of base<br />

q = mCΔT q = heat H f<br />

= heat of fusion<br />

Heat q = mH f<br />

m = mass H v<br />

= heat of vaporization<br />

q = mH v<br />

C=specific heat capacity<br />

ΔT = change in temperature<br />

Temperature<br />

K = °C + 273<br />

K = kelvin<br />

°C = degree Celsius<br />

R12

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