10. Ninhydrin is a compound that reacts with amino acids and proteins to pro- duce a dark-colored complex. It is used by forensic chemists and detectives
to see fingerprints that might otherwise be invisible. Ninhydrin's composition
is 60.68% carbon, 3.40% hydrogen, and 35.92% oxygen. What is the empirical
formula for ninhydrin?

Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.

Name the element in group 17, period 2. (periodic table)

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?