What is a mole quizlet?
The mole is the amount of substance that contains as many particles (molecules, ions or atoms) as there are in 12g of carbon. This number has been found to be 6.02 x 10^23. Molar Mass (M) Numerically equal to the relative molecular mass of each element in a molecule.
Which statement best describes a mole it is used mainly for writing?
Therefore, the statement that best describes a mole is c. It is used for directly comparing the amounts of substances.
Which of the following is the most accurate description of a mole?
A mole is defined as the amount of a substance that contains exactly 6.02214076 X1023 elementary entities of the given substance. Thus, a mole of a substance is referred to as the mass of a substance containing the same number of fundamental units as atoms in exactly 12.000 g of 12C.
Which value gives the number of particles in one mole of a?
One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro’s number or Avogadro’s constant. The concept of the mole can be used to convert between mass and number of particles.. Created by Sal Khan.
Which of the statements describe a mole?
Which statement best describes a mole? It contains 6.02 x 10^23 particles of a given substance.
Why is the mole used in chemistry quizlet?
Chemists use the mole because it is a convenient way of knowing how many representative particles are in a sample. … The mole is a unit for counting 6.02 1023 representative particles. The dozen is used to count 12 items.
Which of the below statements best describes the purpose for using moles in chemistry?
Which statement best explains the purpose of using a mole in the measurement of matter? It allows chemists to deal with a large number of atoms.
What best defines what a mole represents in chemistry?
The amount of chemical substances that contain 6.02×10^23 chemical particles. Which best defines what a mole represents in chemistry? How many molecules are in 48.0g oxygen gas(O2)? … A molecular compound has the empirical formula XY3.
Which simple definition best describes the meaning of the word mole as used in chemistry?
The mole is an amount unit similar to familiar units like pair, dozen, gross, etc. It provides a specific measure of the number of atoms or molecules in a bulk sample of matter. A mole is defined as the amount of substance containing the same number of discrete entities (atoms, molecules, ions, etc.)
What is the best definition of a mole?
A mole is defined as 6.02214076 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.
Which selection best defines the term mole?
A mole corresponds to the mass of a substance that contains 6.023 x 1023 particles of the substance. The mole is the SI unit for the amount of a substance. Its symbol is mol. By definition: 1 mol of carbon-12 has a mass of 12 grams and contains 6.022140857 x 1023 of carbon atoms (to 10 significant figures).
Which of the following statements describe molar mass?
Which of the following statements correctly describe molar mass? —The molar mass of a molecular substance is the mass per mole of its molecules. — The periodic table can be used to calculate the molar mass of any substance. — The molar mass of oxygen is 16.0 g.