How many moles of oxygen are in a
7.68 L container at 355 K and exerting a
pressure of 8.57 atm on the walls of the
container?

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.

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Match the mixture with the substance// i really need on this guys (it’s a pic btw)