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The atmosphere of Mars has a mass of 2.5 x 10^16 kg and comprises two major species: carbon dioxide (95%) and nitrogen gas (3%). Given that the equatorial radius of Mars is 3,397 km, calculate the mass of a single column of atmosphere over a 1 m^2 surface area on the planet. Assume that the...

It has been said that every breath we take, on average, contains molecules that were once exhaled by Wolfgang Amadeus Mozart (1756-1791). If there are 1.09 x 10^44 air molecules in the atmosphere, and in this 35 year life span Mozart exhaled 2.61 x 10^30 molecules of air, calculate the fraction...

Here are a few problems i need help on. Please explain how you got the answer. 1. How many liters is 152 grams of 25C water? 2. How many mL is 152 grams of water at room temperature? Thank you !

Calculate the volume (in L) of ethylene glycol in a radiator that contains 2390 g ethylene glycol. The density of ethylene glycol is 1.11g/mL) Also, please explain how to do the problem. Thank you !