The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar mass of this compound is 215.90 g/mol. What is its molecular formula? ------ The mineral orpiment, having the empirical formula As2S3, was used in ancient times as a cosmetic. How many grams of arsenic are present in 4.89 g of orpiment? Express your answer to 3 significant figures. ? g As
The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar mass of this compound is 215.90 g/mol. What is its molecular formula? ------ The mineral orpiment, having the empirical formula As2S3, was used in ancient times as a cosmetic. How many grams of arsenic are present in 4.89 g of orpiment? Express your answer to 3 significant figures. ? g As
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter3: Molecules, Moles, And Chemical Equations
Section: Chapter Questions
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The empirical formula of a compound containing carbon, hydrogen and bromine is C₂H₄Br. The molar mass of this compound is 215.90 g/mol. What is its molecular formula?
------
The mineral orpiment, having the empirical formula As2S3, was used in ancient times as a cosmetic. How many grams of arsenic are present in 4.89 g of orpiment?
Express your answer to 3 significant figures.
? g As
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