What common carboxylic acid does vinegar contain? a. acetic acid b. citric acid c. hydrochloric acid d. nitric acid

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

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Equal numbers of moles of he(g), ar(g), and ne(g) are placed in a glass vessel at room temperature. if the vessel has a pinhole-sized leak, which of the following will be true regarding the relative values of the partial pressures of the gases remaining in the vessel after some of the gas mixture has effused?