Aspirin is a medicine for use by adults.

an aspirin tablet contains 300mg of acetylsalicylic acid.

calculate the number of moles of acetylsalicylic acid in one aspirin tablet.

give your answer in standard form to three significant figures.

relative formula mass (mr) of aspirin = 180

Adepositional also feature that forms where a stream enters a lake or an ocean is a

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Write a balanced equation showing the formation of copper (ii) nitrite from its elements