5. There 2.0 moles of neon in a tank causing a partial pressure of 12.0 Kpa. 84.0 grams of nitrogen(GFM=28) is added to the tank. What will be the total pressure in the tank?
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How manyatoms of mercury are in 1.4214e+1 ml sample

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?