Hydrofluoric acid solutions cannot be stored in glasscontainers because HF reacts readily with silica dioxidein glass to produce hexafluorosilicic acid ( H 2 Si F 6 ).Si O 2 (s) + 6HF(aq) → H 2 Si F 6 (aq) + 2 H 2 O(l)40.0 g Si O 2 and 40.0 g HF react to yield 45.8 g H 2 Si F 6 .a. What is the limiting reactant?b. What is the mass of the excess reactant?c. What is the theoretical yield of H 2 Si F 6 ?d. What is the percent yield?

Consider the given balanced equation as; SiO2 s + 6 HF aq…

Answered: Hydrofluoric acid solutions cannot be…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter4: Chemical Reactions In Solution

Section: Chapter Questions

Problem 4.120QE

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Hydrofluoric acid solutions cannot be stored in glass
containers because HF reacts readily with silica dioxide
in glass to produce hexafluorosilicic acid ( H ₂ Si F₆ ).
Si O ₂ (s) + 6HF(aq) → H ₂ Si F ₆ (aq) + 2 H ₂ O(l)
40.0 g Si O₂ and 40.0 g HF react to yield 45.8 g H ₂ Si F ₆ .
a. What is the limiting reactant?
b. What is the mass of the excess reactant?
c. What is the theoretical yield of H ₂ Si F 6 ?
d. What is the percent yield?

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