To calculate the equivalent mass of a base, simply divide the molar mass of the base by the number of hydroxyl groups. Take, for example, calcium hydroxide Ca(OH)₂. A few simple calculations yield an equivalent of 37g/mol. To find the equivalent of an acid, divide the acid’s molar mass by the number of protons.
What does equivalent mean in organic chemistry?
Illustrated Glossary of Organic Chemistry – One equivalent. One equivalent: In reaction stoichiometry, the amount of one substance that reacts with one mole of another substance.
What does equivalent mean in lab results?
in effect or function, or equal in might or authority.”
What does equivalent to mean?
/ɪˈkwɪv·ə·lənt/ equal to or having the same effect as something else: A mile is equivalent to about 1.6 kilometers. equivalent equations mathematics.
What are equivalents in a reaction?
An equivalent (symbol: officially equiv; unofficially but often Eq) is the amount of a substance that reacts with (or is equivalent to) an arbitrary amount (typically one mole) of another substance in a given chemical reaction.
How do you find the equivalent of a solute?
EW is the equivalent weight in g/equivalent. It is calculated by dividing the molecular weight of solute by the number of equivalents per mole of solute (Equation 2). For acids, the number of equivalents per mole is the number of H+ ions contributed by the acid per mole of acid.
What is equivalent formula?
The equivalent masses of acids, bases, and salts are calculated as follows: Equivalent mass of an acid = molecular mass of the acid/basicity. Equivalent mass of a base = molecular mass of the base/acidity. Equivalent mass of a salt = molecular mass of the salt/total positive valency of metal atoms.
How do you find the equivalent factor in a titration?
Solution : Equivalent factor ( n ) = `( “Molar mass” ( g mol^(-1)))/(“equivalent mass” ( g eq^(-1)))`
The usefulness of this factor is that the equivalent masses of all the substances can be calculated whether it is an acid, base, salt, or an oxidising or reducing agent.
What is equivalent mass in chemistry?
Equivalent mass: The number of parts by mass of a substance that combines with or displaces 1.008 parts by mass of hydrogen or 8.0 parts of oxygen or 35.5 parts of chlorine is called its equivalent mass (EM).
How do you report an equivalence test result?
Consequently, when reporting an equivalence test, it suffices to report the one-sided test with the smaller test statistic (e.g., t) and thus the larger p value. A conclusion of statistical equivalence is warranted when the larger of the two p values is smaller than alpha.
What does mEq ml mean?
Learning Center. Milliequivalents are used in many oral and parenteral solutions. (example: potassium chloride) Milliequivalent (mEq) is an expression of the number of grams of a medication contained in 1ml of a normal solution. Milliequivalent dosages are written using Arabic numbers follwed by mEq.
What does mEq L mean?
Some medical tests report results in milliequivalents per liter (mEq/L). An equivalent is the amount of a substance that will react with a certain number of hydrogen ions. A milliequivalent is one-thousandth of an equivalent. A liter measures fluid volume.
What is equivalent and example?
The definition of equivalent is something that is essentially the same or equal to something else. An example of equivalent is (2+2) and the number 4. Since 2+2= 4, these two things are equivalent. adjective.
Does equivalent mean equal?
Equal Vs Equivalent Equal means same in all aspects, whereas equivalent means similar but not identical. For example, 2 is said to be equal to 2 but equivalent to 1 + 1.
What is equivalent value?
The value of an original amount at any particular time is called equivalent value or dated value. The equivalent payment combines the original sum with the interest earned up to the dated value date. When sums of money fall due or are payable at different time, they are not directly comparable.
What is one equivalent of an acid?
One equivalent of an acid reacts with one equivalent of a base. For the acid HCl and base NaOH, both with one equivalent, they have the same reactivity. For H2SO4, with two equivalents, and NaOH, it will take twice the amount of the NaOH to react with the sulfuric acid.
What is the difference between equivalent and mole?
It is a measure of a substance’s ability to combine with other substances. It is frequently used in the context of normality. The equivalent is formally defined as the amount of a substance (moles) which will react with 6.022 x 1023 electrons. (This is Avogadro’s Number, which is the number of particles in a mole).
What is meant by equivalent solute?
As per the standard definition, normality is described as the number of gram or mole equivalents of solute present in one litre of a solution. When we say equivalent, it is the number of moles of reactive units in a compound.
What is equivalent weight of NaOH?
Hence, the equivalent weight of NaOH is 40g/mol.
What is equivalent factor?
Equivalent factors are factors used to convert quantities from their original physical units into a common accounting unit for the purpose of aggregating energy sources or assessing contributions” to environmental problems from diverse sources (for example, the contribution of different pollutants to global warming).
How do you know if an equation is equivalent?
- x + 2 = 7.
- x + 2 – 2 = 7 – 2 (subtracting both sides by same number)
- x = 5.
What is equivalent weight of NaCl?
The equivalent weight of NaCl is 58.5/1 or 58.5.
How do you find the equivalent function?
What is an equivalence point in a titration?
Equivalence point: point in titration at which the amount of titrant added is just enough to completely neutralize the analyte solution. At the equivalence point in an acid-base titration, moles of base = moles of acid and the solution only contains salt and water.
What is equivalent fraction with example?
Equivalent fractions are two or more fractions that are all equal even though they different numerators and denominators. For example the fraction 1/2 is equivalent to (or the same as) 25/50 or 500/1000.