9. The molar concentration of concentrated 85% (m/m) H3PO4 which has an SG = 1.69 is:
[Molar mass (g mol-1): H3PO4 - 98.00)

Can someone me with these questions plz.

How can the periodic table be used to predict the behavior of elements?

Asuspension of yeast cells is being grown under anaerobic conditions such that glucose is degraded to ethanol and carbon dioxide. if one wishes to follow this process by monitoring the release of 14co2, at which positions in the glucose molecule would the 14c label need to be incorporated?