Stoichiometry Practice - Empirical, Molecular Formula - Chemistry 1 |, Assignments of Chemistry

Download Stoichiometry Practice - Empirical, Molecular Formula - Chemistry 1 | and more Assignments Chemistry in PDF only on Docsity! Stoichiometry Practice – 3 Empirical & Molecular Formula/Reaction Stoichiometry 1. A compound is found to contain 43.2 % copper, 24.1 % chlorine, and 32.7% oxygen by mass. Determine its empirical formula and name the compound. 2. Ribose is an important sugar (part of RNA), with a molar mass of 150.15 g. If its empirical formula is CH2O, what is its molecular formula? 3. Naphthalene is a soft covalent solid that is often used in mothballs. Its molar mass is 128.18 g. It contains 93.75% carbon and 6.25% hydrogen. Determine the molecular formula of naphthalene from this data. 4. A compound of molecular mass 56.108 g has the following composition: Carbon 85.63% and hydrogen 14.37%. What is its molecular formula? 5)Methanol (CH3OH) is an important industrial compound that is produced from the following reaction: CO + H2  CH3OH. What mass of carbon monoxide would be needed to produce 1,000 g of methanol?