1. A 50 gram sample of a radioisotope decays to 12.5 grams in 14.4 seconds. What is the half-life of this isotope?

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.

How does litmus paper indicate an acid?

What overall charge must all compounds have