substance is a pure substance or a mixture, if you can. • Sample A is 100. mL of a clear liquid. The density of the liquid is measured, and turns out to be 0.77 g/mL. The liquid is then heated in a flask until it boils. The vapor that rises off the boiling liquid is collected for 10 minutes and cooled until it condenses into a separate beaker. The density of the liquid that remains in the flask is then measured, and turns out to be 1.04 g/mL. • Sample B is 100. g of a coarse grey powder with a faint unpleasant smell. 15. g of the powder are dissolved in ethanol. 0.5 mg of the resulting black solution is carefully dropped onto a thick sheet of paper laid flat in a tray. After 30 minutes the initial round black stain has spread out and faded in color to a deep purple. Ar pure substance Is sample A made from a pure substance or a mixture? If the description of the substance and the outcome of the experiment isn't enough to decide, choose "can't decide." O mixture O (can't decide) O pure substance Is sample B made from a pure substance or a mixture? O mixture If the description of the substance and the outcome of the experiment isn't enough to decide, choose "can't decide." O (can't decide) IDon't Know Subm it

substance is a pure substance or a mixture, if you can. • Sample A is 100. mL of a clear liquid. The density of the liquid is measured, and turns out to be 0.77 g/mL. The liquid is then heated in a flask until it boils. The vapor that rises off the boiling liquid is collected for 10 minutes and cooled until it condenses into a separate beaker. The density of the liquid that remains in the flask is then measured, and turns out to be 1.04 g/mL. • Sample B is 100. g of a coarse grey powder with a faint unpleasant smell. 15. g of the powder are dissolved in ethanol. 0.5 mg of the resulting black solution is carefully dropped onto a thick sheet of paper laid flat in a tray. After 30 minutes the initial round black stain has spread out and faded in color to a deep purple. Ar pure substance Is sample A made from a pure substance or a mixture? If the description of the substance and the outcome of the experiment isn't enough to decide, choose "can't decide." O mixture O (can't decide) O pure substance Is sample B made from a pure substance or a mixture? O mixture If the description of the substance and the outcome of the experiment isn't enough to decide, choose "can't decide." O (can't decide) IDon't Know Subm it

Introductory Chemistry For Today

8th Edition

ISBN:9781285644561

Author:Seager

Publisher:Seager

Chapter1: Matter, Measurements, And Calculations

Section: Chapter Questions

Problem 1.20E

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Similar questions

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