equivalent


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.
Related to equivalent: gram equivalent

equivalent

1. Maths
a. having a particular property in common; equal
b. (of two equations or inequalities) having the same set of solutions
c. (of two sets) having the same cardinal number
2. Maths Logic (of two propositions) having an equivalence between them

Equivalent

 

The equivalent of an element is the weight, expressed in carbon mass units, that will combine with or replace one atomic weight of hydrogen or one-half atomic weight of oxygen.

The equivalent of an acid is equal to the acid’s molecular weight divided by its alkalinity (number of hydrogen ions).

The equivalent of a base is equal to the base’s molecular weight divided by its acidity (number of hydroxyl groups).

The equivalent of a salt is equal to the molecular weight of the salt divided by the sum of the charges of the cations or anions forming the salt.

In oxidation-reduction reactions, the equivalent of an oxidizing agent is equal to the quotient obtained as a result of dividing the agent’s molecular weight by the number of electrons obtained by the atom or atoms of the reduced element. The equivalent may vary, depending on the number of electrons accepted by the oxidizing agent.

The concept of equivalent is widely used in the stoichiometric calculations of chemical reactions.

S. A. POGODIN

References in periodicals archive ?
K - % of pupils achieving five A* to C GCSEs and equivalent in 2005.
CPAs from jurisdictions that NQAS considers substantially equivalent are presumed to have appropriate qualifications.
Figure 4 shows MnS solubility product curves for the liquidus temperature for each of several carbon equivalents. An evaluation of these curves (using the procedure outlined with Fig.
Byker Farm pounds 1,800 equivalent is Bow Street pounds 180.
The weight lifted during one training session by the All-Blacks team is the equivalent of lifting 3,750 school children
The majority opinion does not rule out setting aside other foreclosure sales besides mortgage foreclosures, such as sales arising from tax foreclosures or foreclosures not involving real property (like co-operative apartment foreclosures), based on failure of such sales to release reasonably equivalent value.
The longer cure time increases the equivalent cure time of the core to equal MDR TC50 at 170[degrees]C, but the surface cure exceeds the overcure restriction.
In addition, in July, the ESF sold a total of $130.2 million equivalent of marks against special drawing rights (SDRs).
Common stock equivalent. A security under APB Opinion no.
1.7704-1 (c) (3) clarifies that the fact that a partnership does not qualify for a safe harbor or that a transfer of an interest in the partnership is not within a safe harbor is disregarded in determining whether interests in the partnership are readily tradable on a secondary market or the substantial equivalent thereof.
This comparison indicated that BXS-245 precipitated silica was essentially equivalent to fumed silica's reinforcement performance.
As the measured change in the detector-current is proportional to the change of the detector conductance [2], the equivalent transfer resistance gain is found by taking the derivative of the output voltage [V.sub.o] with respect to the detector conductance [G.sub.d]: