How many moles of methane gas molecules, CH4, are in 11.2 liters of methane at standard conditions?

a. 11.2 moles

b. 27.2 moles

c. 179.2 moles

d. 0.5 moles

How can the pH of a solution be calculated if the pOH is known?

Which of the following is a polar protic solvent? Chloroform Methanol Acetone Acetonitrile Diethyl ether

Which measurement below represents the heaviest mass? which measurement below represents the heaviest mass? 1 mg 1 kg 1 pg 1 mg 1 dg?

How does elements and compounds reacting together is essential in everyday matters?

All the elements in a particular group of the periodic table have the same number of A. electrons B. energy levels C. valence electrons D. protons

What is the mass of 3 L of water vapor at 120◦C and 388 torr?

List three things you would need to consider to determine whether or not a chemical system is at equilibrium?

How many moles of methane gas molecules, CH4, are in 11.2 liters of methane at standard conditions? a. 11.2 moles b. 27.2 moles c. 179.2 moles d. 0.5 moles

The valve between a 2.00-L bulb, in which the gas pressure is 1.80 atm, and a 3.00-L bulb, in which the gas pressure is 3.40 atm, is opened. What is the final pressure in the two bulbs, the temperature remaining constant?

What determines the order of placement of the elements on the modern Periodic Table? 1. atomic number 2. atomic mass 3. the number of neutrons, only 4. the number of neutrons and protons