For an acid-base reaction,1 M Al(OH)₃ has a normality of 3 N.This is best explained because: A)The equivalent mass is three times the molar mass. B)Each mole contains 3 moles of hydroxide ions that can react with 3 moles of hydrated protons. C)The mole fraction is equal to 3 when aluminum hydroxide is mixed with water. D)The normality is always three times stronger than the concentration of a solution. E)At least two of the above statements are correct.

Question

Quizplus · Accepted Answer

In an acid-base reaction, normality is defined as the number of equivalents of the solute per liter of solution. In the case of Al(OH)3, each mole of the compound contains 3 moles of hydroxide ions, which can react with 3 moles of hydrated protons (H3O+). Therefore, the normality of Al(OH)3 solution is 3 N. Choice A is incorrect because the equivalent mass is not necessarily three times the molar mass in all cases. Choice C is incorrect because the mole fraction is not related to normality. Choice D is incorrect because normality is not always three times stronger than the concentration of a solution. Choice E is incorrect because only one statement is correct.

For an Acid-Base Reaction,1 M Al(OH)3 Has a Normality of 3

For an Acid-Base Reaction,1 M Al(OH)₃ Has a Normality of 3