What is the gEq weight of an acid? a. Amount of the acid ...

[shofmannx20]

What is the gEq weight of an acid?
 
  a. Amount of the acid containing 1 mol of replaceable H+ ions.
  b. Amount of the acid containing 1 mol of replaceable OH ions.
  c. Gram atomic weight of the acid times its valence.
  d. Milligrams of acid per deciliter (dl) of normal solution.

Question 2

How is the gram-equivalent (gEq) weight of a substance computed?
 
  a. Dividing its gram atomic weight by its va-lence
  b. Dividing its valence by its gram atomic weight
  c. Multiplying its atomic number times its atomic weight
  d. Multiplying its gram atomic weight times its valence

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Answer to Question 1

ANS: A
The gram equivalent weight of an acid may be calculated by dividing its gram formula weight by the number of hydrogen atoms in its formula, as shown in the following reaction:
The single H+ of hydrochloric acid (HCl) is replaced by Na+. One mole of HCl has 1 mol of re-placeable hydrogen. By definition, the gEq of HCl must be the same as its gram formula weight, or 36.5 g.

Answer to Question 2

ANS: A
Gram equivalent weight values. A gEq of a substance is calculated as its gram atomic (formula) weight divided by its valence. The valence signs (+ or ) are disregarded.

[shofmannx20]

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