Hydrofluoric acid, HF(aq), cannot be stored in glass bottlesbecause compounds called silicates in the glass are attackedby the HF(aq). Sodium silicate 1Na2SiO32, for example, reactsas follows:Na2SiO31s2 + 8 HF1aq2¡ H2SiF61aq2 + 2 NaF1aq2 + 3 H2O1l2(a) How many moles of HF are needed to react with 0.300mol of Na2SiO3?(b) How many grams of NaF form when 0.500 mol of HFreacts with excess Na2SiO3?(c) How many grams of Na2SiO3 can react with 0.800 g of HF?
Hydrofluoric acid, HF(aq), cannot be stored in glass bottlesbecause compounds called silicates in the glass are attackedby the HF(aq). Sodium silicate 1Na2SiO32, for example, reactsas follows:Na2SiO31s2 + 8 HF1aq2¡ H2SiF61aq2 + 2 NaF1aq2 + 3 H2O1l2(a) How many moles of HF are needed to react with 0.300mol of Na2SiO3?(b) How many grams of NaF form when 0.500 mol of HFreacts with excess Na2SiO3?(c) How many grams of Na2SiO3 can react with 0.800 g of HF?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter4: Reactions In Aqueous Solution
Section: Chapter Questions
Problem 62QAP: Ten mL of concentrated H3PO4 (91.7% by mass, d=1.69g/mL) was accidentally poured into a beaker...
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Hydrofluoric acid, HF(aq), cannot be stored in glass bottles
because compounds called silicates in the glass are attacked
by the HF(aq). Sodium silicate 1Na2SiO32, for example, reacts
as follows:
Na2SiO31s2 + 8 HF1aq2¡ H2SiF61aq2 + 2 NaF1aq2 + 3 H2O1l2
(a) How many moles of HF are needed to react with 0.300
mol of Na2SiO3?
(b) How many grams of NaF form when 0.500 mol of HF
reacts with excess Na2SiO3?
(c) How many grams of Na2SiO3 can react with 0.800 g of HF?
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