A student is asked to prepare 45.0 mg of a sample to be used in a mixed melting point test. The requested composition of the sample is 65.0 % A and 35.0 % B. What is the mass of compound A needed to prepare the sample?

A student is asked to prepare 45.0 mg of a sample to be used in a mixed melting point test. The requested composition of the sample is 65.0 % A and 35.0 % B. What is the mass of compound A needed to prepare the sample?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 83QRT

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Concentration of AR Stock Solution (ppmppm) 21.22 Unrounded Rounded Concentration of AR Stock Solution (μMμM) 42.7461 42.7