9.
\(\rm{13}\)、相同物质的量的\(\rm{SO_{2}}\)和\(\rm{SO_{3}}\)相比较,下列叙述正确的是\(\rm{(}\) \(\rm{)}\)
\(\rm{①}\)分子数之比为\(\rm{1}\):\(\rm{1}\) \(\rm{②}\)所含\(\rm{O}\)原子数之比为\(\rm{2}\):\(\rm{3}\) \(\rm{③}\)原子总数之比为\(\rm{3}\):\(\rm{4}\) \(\rm{④S}\)原子数之比为\(\rm{1}\):\(\rm{1}\) \(\rm{⑤}\)质子数之比\(\rm{4}\):\(\rm{5}\)