At pH 5-7 aluminum hydroxide isO readily exceeding water quality limits for aluminumO leaving a foul taste in the waterO in its least soluble formO ineffective as a coagulant Van der Waals forces areO the electrostatic interactions between silica particlesO keeping colloids in water in suspensionO facilitating the aggregation of suspended particlesO extending further into the solution than electrostatic repulsive forces

1. At pH 5-7, aluminum hydroxides are in their least soluble form. At a pH range of 5-7, the…

Answered: At pH 5-7 aluminum hydroxide is O…

At pH 5-7 aluminum hydroxide is O readily exceeding water quality limits for aluminum O leaving a foul taste in the water O in its least soluble form ineffective as a coagulant

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter7: Making Strong Materials

Section: Chapter Questions

Problem 7.11P

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Concept explainers

Material Selection

A wide variety of engineering applications make use of different materials, depending upon their usage. The materials used in civil engineering vary in their properties such as strength, ductility, brittleness, and creep strength. Depending upon the application and external loading conditions, an engineer must make a wise decision for material selection. A wrong decision would fail in its functionality.

Question

At pH 5-7 aluminum hydroxide is
O readily exceeding water quality limits for aluminum
O leaving a foul taste in the water
O in its least soluble form
O ineffective as a coagulant

Van der Waals forces are
O the electrostatic interactions between silica particles
O keeping colloids in water in suspension
O facilitating the aggregation of suspended particles
O extending further into the solution than electrostatic repulsive forces

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