The weight percent of silicon in six different rock samples, each containing different amounts of silicon, was measured by two different methods. The results are given in the table. Sample Method A Si wt% | Method B Si wt% 1 11.570 11.490 15.380 15.310 3 17.950 17.810 4 22.840 22.810 5 25.110 25.200 6 27.070 27.050 Determine tcalc• t calc = 3.122

The weight percent of silicon in six different rock samples, each containing different amounts of silicon, was measured by two different methods. The results are given in the table. Sample Method A Si wt% | Method B Si wt% 1 11.570 11.490 15.380 15.310 3 17.950 17.810 4 22.840 22.810 5 25.110 25.200 6 27.070 27.050 Determine tcalc• t calc = 3.122

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter19: The Chemistry Of The Main-group Elements

Section: Chapter Questions

Problem 87QRT: Assume that the radius of Earth is 6400 km, the crust is 50. km thick, the density of the crust is...

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Assume that the radius of Earth is 6400 km, the crust is 50. km thick, the density of the crust is 3.5 g/cm3, and 25.7% of the crust is silicon by mass. Calculate the total mass of silicon in the crust of Earth.
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The weight percent of silicon in six different rock samples, each containing different amounts of silicon, was measured by two different methods. The results are given in the table. Sample Method A Si wt% | Method B Si wt% 1 11.570 11.540 2 15.380 15.290 3 17.950 17.820 4 22.840 22.810 25.110 25.150 6 27.070 27.020 Determine tcalc.
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