D=MP/RT
Use the equation above to find the density of a gas at STP with a molar mass of 44.0 g/mol

How many molecules are in 6.0 moles of methane

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg

The sum of the oxidation numbers in a neutral compound is always