If you added 1 mL of each, same problem and compounded by differences in density. Since mole is a per molecule measurement, it allows you to make real comparisons between compounds. For example 1 mole of acetic acid will have the same number of molecules as 1 mole of stearic acid even though the weights, volumes, and phases might be different.

Jun 15, 2013 · $\begingroup$ @matt_black (ii)My reasoning behind all of this was to try to understand why the amount of substance is usually regarded as a dimensional quantity with the mole being its SI unit – a dimensional unit – unlike the dozen which is regarded as dimensionless. And that was my answer – if mole is dimensional then it cannot be just ...

The Avogadro number is the (dimensionless) ratio of one gram to one "atomic mass unit" (now called dalton, Da): g/Da. One mole is an an Avogadro number of entities: mol = (g/Da) ent. Thus we have the important relationship: Da/ent = g/mol = kg/kmol, exactly.

Jun 19, 2016 · Maybe because "osmole" has the same measurement units as "mole" and the latter is the SI unit with that measurement unit. For example, one mole of sodium chloride gives two osmoles in water solution; the conversion between them is . $2$ osmol/mol. showing the two quantities have the same measurement unit. The mole was included into the SI ...

The mole is a unit of numberical count. Like a dozen is twelve unit entities (eg. twelve eggs in a dozen eggs), 1 mol is shorthand for 6.022x10^23 counted units of the substance as elementary entities (eg. photons, electrons, He atoms, H2O molecules...). A box with one mole of H2O in it has 6.0221x10^23 H2O molecules in it. A mole is just a number.

Oct 13, 2020 · The mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12; its symbol is "mol". When the mole is used, the elementary entities must be specified and may be atoms, molecules, ions, electrons, other particles, or specified groups of such particles.

Aug 27, 2015 · [4] The Mole is Not an Ordinary Measurement Unit. Ingvar Johansson Accred Qual Assur (2011) 16:467–470. EDIT. I want to add the words that a synthetic chemist wrote in a letter to C&EN: In theory, we can dispense with the mole (C&EN, Aug. 4, page 32). The mole, molarity, and molality were adopted as convenient ways to express relative amounts ...

Oct 11, 2016 · The first thing to realize is that "mole" is not a mass unit. It is simply a quantity - a number - like dozen or gross or score. Just as a dozen eggs is 12 eggs, a mole of glucose is $6.02 \times 10^{23}$ glucose molecules, and a mole of …

Dec 31, 2021 · $\begingroup$ Using the current official definition, you should not substitute a dimensionless number for the unit mole. A dozen is equal to 12, but a mole is not equal to the Avogadro number in the SI unit system. Thus, g/mol and Da are not equal in the SI system, and the given equation is incorrect.

Jun 21, 2012 · The mole is useful in chemistry because it relates two popular but inconsistent units of mass - the atomic mass unit (u) and the gram. One mole of atoms of an element with atomic mass x u, has a mass of x grams. We don't use atomic mass units outside chemistry, so we also have no need for the mole.