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Answer. How many individual atoms of O are in this amount? Answer. Exercise 7.1.2.1 7.1.2. 1. How many moles of C 4 H 8 O 2 can be made with 18.5 mol C? Answer. Exercise 7.1.2.1 7.1.2. 1. How many grams of C 4 H 8 O 2 can be made with 2.86 x 10 21 C atoms? (Hint: how many moles of C is this?)
11 sty 2022 · The Mole. The Avogadro constant (NA or L) is the number of particles equivalent to the relative atomic mass or molecular mass of a substance in grams. The Avogadro constant applies to atoms, molecules and ions. The value of the Avogadro constant is 6.02 x 1023 g mol-1.
26 wrz 2024 · mole, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles. The mole designates an extremely large number of units, 6.02214076 × 10 23.
29 lip 2021 · For an element, the molar mass is the mass of 1 mol of atoms of that element; for a covalent molecular compound, it is the mass of 1 mol of molecules of that compound; for an ionic compound, it is the mass of 1 mol of formula units.
1) A mole of anything is how many? (give the number): 2) Why is it that different amounts of things can still equal one mole? (think about the weight of a dozen elephants vs a dozen eggs) 3) Why do we want to use the concept of moles?
16 lip 2020 · Chemistry uses a unit called mole. A mole (mol) is a number of things equal to the number of atoms in exactly 12 g of carbon-12. Experimental measurements have determined that this number is very large: 1 mol = 6.02214179 × 10 23 things
7 gru 2023 · The symbol for the unit mole is mol. One mole of a substance contains the same number of the stated particles, atoms, molecules, or ions as one mole of any other substance. The number of atoms, molecules or ions in a mole (1 mol) of a given substance is the Avogadro constant.
