Get Gizmos Mole Answer Key

One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions).

One mole of any substance is equal to the value of 6.023 x 1023 (Avagadro number). It can be used to measure the products obtained from the chemical reaction. The unit is denoted by mol.

Why use 12 grams? This is the theoretical atomic mass of the Carbon-12 isotope (6 protons and 6 neutrons). This means that the atomic mass or atomic weight (12 grams) of carbon is equal to exactly 1 mole of carbon.

The MOLE (mol) is a unit of measurement that is the amount of a pure substance containing the same number of chemical units (atoms, molecules etc.) as there are atoms in exactly 12 grams of carbon-12 (i.e., 6.022 X 1023).

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”.

B. What do you notice about the number of atoms in one mole? It is the same for each element. Discover: In each case, you measured out one mole of atoms, since the mass of one mole of any element, in grams, is equal to its atomic mass, in u.

The mole is the unit for amount of substance. It is abbreviated to mol. 1 mol is the amount of substance that contains the same number of particles as there are atoms in 12.0 g of carbon-12.

The new Moles Gizmo is about the unit of a substance in chemistry. A mole of an element has the property that one mole has a mass in grams equal in value to the atomic mass of the element. For example, carbon has an atomic mass of 12.011 atomic mass units, and a mole of carbon has a mass of 12.011 grams.