3. Chemical Reactions

Elemental analysis of a pure compound indicated that the compound had 72.2% C, 8.50% H and the remainder as O. If 0.250 moles of the compound weighs 41.55 g, what is the molecular formula of the compound?

Use the given empirical formula and molar mass to determine the molecular formula.

Empirical Formula: NH₂                      Molar Mass: 32.052 g/mol

Glyceraldehyde (M = 90.078 g/mol), a simple monosaccharide, is comprised of 39.999% C, 6.714% H, and 53.297% oxygen by atomic weight. What would be its molecular formula?

Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and chlorine. it has a molar mass of 99 g/mol. analysis of a sample shows that it contains 24.3% carbon and 4.1% hydrogen. what is its molecular formula?

Find the molecular formula of each compound

Of the following molecular formulas for hydrocarbons which is an empirical formula

Elemental analysis of the unknown gas from part a revealed that it is 30.45% N and 69.55% O by mass. What is the molecular formula for this gas?

If nicotine has a molar mass of 160±5g/mol, what is its molecular formula?

A compound is 43.7% phosphorus and 56.3% oxygen. The formula mass of the compound is 284 g. calculate the empirical formula and molecular formula of the compound.

A compound has a molar mass of 180.18 g/mol. Given the following percent composition, calculate the molecular formula: 39.99% C, 6.73% H, 53.28% O.