Acompound is 53.31% c, 11.18% h, and 35.51% o by mass. what is its empirical formula?

Can anyone (a-level) a student was analysing a carbonate compound, mco3, containing an unknown group 2 metal, m. the student carried out thermal decomposition on 0.730g of the carbonate and measured the volume of gas produced. mco3 (s) mo (s) + co2 (g) the student collected and measured 120cm3 of carbon dioxide. 1 mol of carbon dioxide occupies 24 000 cm3 under these conditions. calculate the molar mass of the group 2 carbonate and hence deduce the identity of the group 2 metal, m.

How many moles are in 123.0 grams of kclo4?

Is the idea of spontaneous generation supported by redi's experiment? justify your answer in 2-3 sentences?