A compound contains only carbon, hydrogen and oxygen. Combustion of 10.68 mg of the compound yields 16.01 mg CO2 and 4.37 mg H2O. The molar mass of the compound is 176.1
g/mol. What are the empirical and molecular formulas of the compound?

Which of the following contributes to the structural rigidity of cellulose? adjacent glucose polymers are stabilized by hydrogen bonding. glucose residues are joined by (α1→4) linkages. cellulose is a highly branched molecule. the conformation of the glucose polymer is a coiled structure.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false