Concept explainers
Silicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction.
a.
b. Silicon tetrachloride is reacted with very pure magnesium, producing silicon and magnesium chloride.
c.
Want to see the full answer?
Check out a sample textbook solutionChapter 20 Solutions
Chemistry
- Silicon is produced for the chemical and electronics industries by the following reactions. Give the balanced equation for each reaction. a. SiO2(s)+C(s)arefurnaceElectricSi(s)+CO(g) b. Liquid silicon tetrachloride is reacted with very pure solid magnesium, producing solid silicon and solid magnesium chloride. c. Na2SiF6(s) + Na(s) Si(s) + NaF(s)arrow_forwardWhen an electric current is passed through an aqueous solution of NaCI, the valuable industrial chemicals H2(g), Cl2(g), and NaOH are produced. 2 NaCI(aq) + 2 H2O(l) H2(g) + Cl2(g) + 2 NaOH(aq) What mass of NaOH can be formed from 15.0 L of 0.35 M NaCI? What mass of chlorine is obtained?arrow_forwardAssume 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.arrow_forward
- 4.104 When 2.750 g of the oxide Pb3O4 is heated to a high temperature, it decomposes to produce 0.0640 g of oxygen gas and 2.686 g of some new lead oxide compound. How can you use these data to determine the formula of the new compound?arrow_forwardA Commercial sodium "hydrosulfite" is 90.1% Na2S2O4. The sequence of reactions used to prepare the compound is Zn(s) + 2 SO2(g) ZnS2O4(s) ZnS2O4(s) + Na2CO3(aq) ZnCO3(s) + Na2S2O4(aq) (a) What mass of pure Na2S2O4 can be prepared from 125 kg of Zn, 500. g of SO2, and an excess of Na2CO3? (b) What mass of the commercial product would contain the Na2S2O4, produced using the amounts of reactants in part (a)?arrow_forward4.48 Elemental phosphorous is used in the semiconductor industry. It can be obtained from an ore called fluoroapatite via reaction with SiO2 and C: 4Ca5( PO4)3F+18SiO2+30C3P4+30CO+18CaSiO3+2CaF2 Suppose a particular semiconductor production plant requires 1500 kg of P4. If the recovery of P4 from this reaction is 73% efficient, what mass of fluoroapatite is needed?arrow_forward
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning