Structure, Bonding and Introduction to Organic Chemistry

WCH11Unit 15 topics · 15 questions

Key equations

The relationships this unit leans on most. Check your formulae or data booklet for which ones the exam gives you.

1.4Introductory organic chemistry and alkanes3 questions

c = \dfrac{n}{V}

c = \frac{n}{V}

concentration in mol dm $^{-3}$ , with $V$ in dm $^3$

$N = nL$

number of particles ( $L = 6.02\times10^{23}\,\text{mol}^{-1}$ )

$pV = nRT$

ideal gas equation: $p$ in Pa, $V$ in m $^3$ , $T$ in K

$V = n \times 24.0\,\text{dm}^3$

gas volume at room temperature and pressure

$\%\,\text{yield} = \dfrac{\text{actual}}{\text{theoretical}} \times 100$

how much product you actually got

$\text{atom economy} = \dfrac{M(\text{desired product})}{\sum M(\text{all products})} \times 100$

how much of the reactants ends up in the product you want

$A_r = \dfrac{\sum(\text{isotope mass} \times \text{abundance})}{\sum \text{abundance}}$: relative atomic mass from a mass spectrum