The analysis of a compound gives the following percent composition by mass: c: 61.50 percent; h: 9.217 percent; s: 11.73 percent; o: 17.56 percent. what is its molecular formula given that its molar mass is 273.4 g?

Which of the following is considered a benefit to using wind energy as a source of power

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

Calculate the number of molecules present in 0.750 mol of mgo.