问一题关于化学mole的问题1.(a)If1moleofozone(O3)containsxatoms,howmanyatomswill1moleofoxygen(O2)cotain?(b)If8gofnitrogen(N2)cotainymolecules,howmanymoleculesarepresentin8gofsulphurdioxide?答题者请附上答

Question

问一题关于化学mole的问题
1.(a) If 1mole of ozone(O3) contains x atoms,how many atoms will 1mole of oxygen(O2) cotain?(b) If 8g of nitrogen(N2) cotain y molecules,how many molecules are present in 8g of sulphur dioxide?答题者请附上答案和解释

Answer 1

1 如果1molO3 中含有个氧原子,则NA=N/n=x/1*3=x/3 现在有1molO2 那么氧原子N=n*NA=2*x/32 n(N2)=8/28 mol NA=N/n =28y/8 n(SO2)=8/64=1/8mol N(SO2)=n*NA = 1/8 *28y/8=7y/16