if 10 moles of solute is dissolved in enough water to make 2 L of solution what is the mmolarity. please help me I don't know how to do this.

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.

Who is better, messi or cristiano, i need this for a chemistry class. asap

During which time interval does the object travel approximately 10 meters