Acompound has a molar mass of 90. grams per mole and the empirical formula ch2o. what is the molecular formula of this compound?

C₃H₆O₃

Explanation:

Data:

EF = CH₂O

MM = 90. g/mol

Calculations:

EF Mass = (12.01 + 2.016  + 16.00) u  = 30.03 u

The molecular formula is an integral multiple of the empirical formula.

MF = (EF)ₙ

MF = (CH₂O)₃ = C₃H₆O₃

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

the answer is minerals.