Acosmetologist has an ethical duty to do which of the following?

How many moles of n2 you have in 476 l sample at stp?

Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.