Introductory Chemistry: A Foundation
9th Edition
ISBN: 9781337399425
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 9, Problem 71AP
When elemental copper is strongly heated with sulfur, a mixture of CuS and
:math>
at is the theoretical yield of CuS when 31.8 g of Cu(s) is heated with 50.0 g of S? (Assume only CuS is produced in the reaction.) What is the percent yield of CuS if only 40.0 g of CuS can be isolated from the mixture?
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Silicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction.
(Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (aq) or (s). If a box is not needed, leave it blank.)
SiO2(s) + C(s) → Si(s) + CO(9)
a.
SiO (s)
b. Liquid silicon tetrachloride is reacted with very pure solid magnesium, producing solid silicon and solid magnesium chloride.
+ C(s)
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CO(g)
>
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The balanced equation for the decomposition of potasslum chlorate is shown below. When carried out in lab, this reaction is found to produce
1.2 g of potassium.chloride. For your convenience, the molar mass of each substance is shown below their formulas (in purple). Use this
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2 KCIO3(s) --> 2 KCI(s) + 3 02(g)
122.551
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Titanium occurs in the magnetic mineral ilmenite (FeTiO3), which is
often found mixed up with sand. The ilmenite can be separated from
the sand with magnets. The titanium can then be extracted from the
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FeTiO3(s)+3Cl₂(g) +3C(s)-3CO(g)+FeCl₂ (s)+TiCl, (g)
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Part A
If the second reaction is carried out with an 87.0 % yield, what mass of titanium can be obtained from 1.20 kg of the ilmenite-sand mixture?
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μA
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Chapter 9 Solutions
Introductory Chemistry: A Foundation
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
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