Experimental chain dimensions for poly(ethylene terephthalate) (pet) at 275°c are given by o/m 0.90 å2mol/g. calculate c[infinity](6 points), the statistical segment length (6 points), and the persistence length for this polymer (6 points). based on these numbers, is pet a flexible polymer, or not (1 points)? explain your answer.

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 to solve 4 nh3(g) + 5 o2(g) > 4 no(g) + 6 h2o(g) in chemistry

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing