How many molecules are in 30 liters of methane (ch4) at stp? 4.033 × 1024 4.033 × 1023 8.06 × 1024 8.06 × 1023

Ibeg i need 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

How have the greenhouse gasses increased from the year 2000 to 2018

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.