Determine whether the statements given below are true or false.
(a) The mass of an atom can have the unit mole.
(b) In \(\mathrm{N}_{2} \mathrm{O}_{4},\) the mass of the oxygen is twice that
of the nitrogen.
(c) One mole of chlorine atoms has a mass of \(35.45 \mathrm{~g}\).
(d) Boron has an average atomic mass of 10.81 amu. It has two isotopes,
\(\begin{array}{lll}\text { B-10 } & (10.01 \text { amu }) & \text { and } &
\text { B-11 }\end{array}\) (11.01 amu). There is more naturally occurring B-10
than B-11.
(e) The compound \(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{2} \mathrm{~N}\)
has for its simplest formula \(\mathrm{C}_{3} \mathrm{H}_{6} \mathrm{O}
\mathrm{N}_{1 / 2}\)
(f) A 558.5 -g sample of iron contains ten times as many atoms as \(0.5200
\mathrm{~g}\) of chromium.
(g) If \(1.00 \mathrm{~mol}\) of ammonia is mixed with \(1.00 \mathrm{~mol}\) of
oxygen the following reaction occurs, \(4 \mathrm{NH}_{3}(g)+5
\mathrm{O}_{2}(g) \longrightarrow 4 \mathrm{NO}(g)+6 \mathrm{H}_{2}
\mathrm{O}(l)\) All the oxygen is consumed.
(h) When balancing an equation, the total number of moles of reactant
molecules must equal the total number of moles of product molecules.
