Identify the quantity that is calculated y dividing the molar mass of an element by Avogadro's number.
I don't get this question..?
This is a trick question because the molar mass is the ratio of grams per mole and Avogadro’s number is the ratio of particles per mole,so dividing the molar mass of an element by Avogadro’s number yields the mass of a single representative particle of that element.Or in other words,What do you get by dividing the molar mass by Avogadro's number? The number of particles contain in the amount of that certain element.
The quantity that is calculated by dividing the molar mass of an element by Avogadro's number is called the "molar mass constant" or "gram-molar mass constant." This constant represents the mass of one mole of a substance in grams.
No worries! This question is asking you to identify a specific quantity that is obtained by dividing the molar mass of an element by Avogadro's number.
To better understand this question, let's break down the key concepts involved:
1. Molar Mass: The molar mass of an element is the mass of one mole of that element, expressed in grams. It is numerically equal to the element's atomic or molecular weight in atomic mass units (amu).
2. Avogadro's Number: Avogadro's number, denoted as "Nₐ," is a fundamental constant in chemistry that represents the number of particles (atoms, molecules, or ions) in one mole of a substance. Its value is approximately 6.022 x 10²³.
Now, to identify the specific quantity that is calculated by dividing the molar mass of an element by Avogadro's number, we simply perform the division. By doing this, we can determine the number of moles of the element present in one gram or the number of molecules or atoms in one gram. Additionally, dividing the molar mass by Avogadro's number gives you the mass of one particle (atom or molecule) of the element in grams.
So, to answer the question directly: The quantity that is calculated by dividing the molar mass of an element by Avogadro's number is the number of moles of the element, the number of atoms or molecules of the element, or simply the mass of one particle of the element in grams.
I hope that helps clarify the question for you! Let me know if you have any further questions.
1 mole of an element contains 6.02 x 10^23 atoms and it has a mass of xx grams. For example, Al, in round numbers, is about 27 g for a mole; therefore, 27 g of Al contains 6.02 x 10^23 atoms.
So what do you think 27/6.02 x 10^23 = 4.48 x 10^-23 represents?