Equivalent Definition and 1000 Threads

Equivalent weight (also known as gram equivalent) is the mass of one equivalent, that is the mass of a given substance which will combine with or displace a fixed quantity of another substance. The equivalent weight of an element is the mass which combines with or displaces 1.008 gram of hydrogen or 8.0 grams of oxygen or 35.5 grams of chlorine. These values correspond to the atomic weight divided by the usual valence; for oxygen as example that is 16.0 g / 2 = 8.0 g.
For acid–base reactions, the equivalent weight of an acid or base is the mass which supplies or reacts with one mole of hydrogen cations (H+). For redox reactions, the equivalent weight of each reactant supplies or reacts with one mole of electrons (e−) in a redox reaction.Equivalent weight has the dimensions and units of mass, unlike atomic weight, which is dimensionless. Equivalent weights were originally determined by experiment, but (insofar as they are still used) are now derived from molar masses. Additionally, the equivalent weight of a compound can be calculated by dividing the molecular mass by the number of positive or negative electrical charges that result from the dissolution of the compound.

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  1. A

    Acceleration in SR makes it equivalent to GR?

    Does putting the concept of acceleration in SR make it equivalent to GR? I see a lot of sources (including many posts in this forum) which seem to say that SR can handle acceleration fine, but not gravity. However, an acceleration IS gravity by the equivalence principle, so what's the...
  2. A

    What is total equivalent resistance and power dissipated?

    Another one.. I'm sorry but I will likely spend tomorrow and today here with you guys asking for help and mooching solutions. Same deal, badly explained unit. We spent 15 minutes on this. Attached questions as jpg... Homework Statement How do I find total equivalent resistance? What does...
  3. C

    Two simple questions about equivalent resistance and kirchoff laws

    two simple questions about equivalent resistance and kirchhoff laws! pleaseeeee! :D EQUIVALENT RESISTANCE: Hi everybody . greetings from Peru.I know it's a dumb question but help please .please read below Homework Statement For the network shown in the figure, show that the resistance Rab =...
  4. D

    Question about Thevenin Equivalent Vth

    Hi guys, I have a question that is nagging me quite a lot. Let us say that we have a circuit who has two independent sources (any combination of voltage and current sources). In the determination of Vth, can we choose whether or not to use superposition to find this Vth? Because my...
  5. B

    Q-Q plot equivalent for discrete variable?

    Hello, You can use a Q-Q plot to visually test if 2 continuous variables are from the same distribution and you get a straight line. Is there a way to visually test if 2 discrete variables are from the same distribution? Also is there a way to test it mathematically? Thanks
  6. P

    Engineering Can I simplify this circuit using Norton's theorem?

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  7. R

    Determining the equivalent resistance of an irreducible network of resistors

    Homework Statement Alright so I am having trouble finding the equivalent resistance of something like this Without "hooking it up" to a current source and solving a large system of equations to find the voltage drop across the network and therefore the resistance. Is there a faster...
  8. J

    Calculating the equivalent inductance of a simulated inductor

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  9. K

    What is the equivalent capacitance for this circuit?

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  10. L

    Resistance: find the equivalent resistance.

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  11. C

    Finding the Norton Equivalent Circuit in a Short Circuited Circuit

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  12. J

    How to find Equivalent Weight of Triacetin

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  13. A

    Equivalence principle - are all accelerations actually equivalent to gravity?

    I have read the basis of the the equivalence principle, that inertial mass = gravitational mass, and that it leads to the conclusion that any acceleration = equivalent gravitational field intensity. (I believe 'gravitational field intensity' is the same as 'gravitational acceleration'.)...
  14. J

    MATLAB Python equivalent of MATLAB textscan?

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  15. C

    Velocity equivalent of a given Force

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  16. R

    What are the equations for calculating equivalent resistance in a circuit?

    Homework Statement A circuit extends forever to the right, and all the resistors have the same value ##R##. Calculate the equivalent resistance measured across the two terminals at left. Homework Equations The series and parallel equivalent resistance equation. The Attempt at a...
  17. iVenky

    Equivalent Matrices: Definition & A=B

    What is the exact definition for equivalent matrices? Is it necessary that it should be A = B if A,B are two matrices? Thanks a lot.
  18. D

    Operation on Equivalent Classes

    Homework Statement A solution to a problem has following operation: here, [(a,b)] and [(m,n)] are two equivalence classes. [(a,b)]+[(m,n)]=[(an+bm,bn)] Is not [(a,b)]+[(m,n)]=[(a+m,b+n)]? Can anyone explain it to me? Homework Equations The Attempt at a Solution
  19. K

    Equivalent Voltage for Thevenin Equivalent Circuit

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  20. D

    Microeconomics problem on choosing an equivalent bundle

    Homework Statement Hello. Thats my homework question, so any hints will be appreciated. Paul consumes only two goods, pizza (P) and hamburgers (H), and considers them to be perfect substitutes, as shown by his utility function: (, ) = + 4. The price of pizza is $3 and the price of...
  21. N

    Engineering Thevenin Equivalent Circuit: using open/short circuit method

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  22. Q

    Engineering Simple circuit, find equivalent resistance seen by the source

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  23. Q

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  24. N

    Engineering Finding Thevenin equivalent circuit

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  25. N

    Discrete Math question on creating a logically equivalent compound proposition

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  26. N

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  27. L

    Why doesn't charge need the equivalent of a Higgs boson?

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  28. L

    Finding the equivalent resistance of this circuit.

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  29. B

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  30. T

    Norton Equivalent and Source Transformation problem

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  31. O

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  32. N

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  33. Faradave

    Ray vs. Line: Equivalent Freedoms?

    I’m curious, but no mathematician. Euclidean geometry is the only type for which I've had training (45 years ago). Apologies in advance for misused terms. A line, as I recall, extends indefinitely in opposite directions. It has no definite “origin” or "center". If we view “translational...
  34. D

    MHB Is $f$ a one-to-one function on $S$?

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  35. T

    Identifying Equivalent Force in New Location: Examples & Solutions

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  36. T

    Equivalent angles and Trig Fucntions

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  37. H

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  38. S

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  39. B

    Finding the Thevenin Equivalent with a dependent source

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  40. S

    Equivalent Resistance: Simplifying Circuits with Symmetry

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  41. J

    Another way to get energy equivalent of a mass

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  42. S

    Prove that the proper subset E of a finite set F can never be equivalent to F.

    Homework Statement Statement: A set F can never be equivalent to its proper subset E This statement appears in Halmos's Naive set theory in the chapter 13. Arithmatic. He arrives at this statement through the following steps 0. In the previous chapter, he proves the recusrsion theorem...
  43. J

    Equivalent Force Systems: Statics Review

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  44. S

    Find the equivalent resistance of a circuit below

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  45. Saitama

    What is the equivalent resistance of this circuit?

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  46. A

    Unique existence quantifier equivalent to what?

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  47. bohm2

    Medical Are all calories equivalent for fat loss?

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  48. N

    Equivalent capacitor in the circuit

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  49. W

    Fisher Information Matrix: Equivalent Expressions

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  50. P

    Equivalent inertia calculation problem

    Homework Statement Need to calculate equivalent mass moment of inertia of a part that moves linearly at the point where torque is applied. Please find two schematic drawings in the attachement (representing the same mechanism in a slightly different way). Basically, there is a rotating crank...
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