Until recently, it was used as a refrigerant. The structure of a molecule of Freon is as follows: We also described the law of multiple proportions, which states that the ratios of the masses of elements that form a series of compounds are small whole numbers.
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For answers that involve a calculation you must show your work neatly using dimensional analysis with correct significant figures and units to receive full credit.
No work, no credit. Report numerical answers to the correct number of significant figures. Just as the dozen is a useful quantity for counting eggs, the mole is a useful quantity for counting molecules.
The mole allows us to connect the macroscopic world, the surroundings we percieve, to the molecular scale, where chemistry occurs.
On the macroscopic scale, we think in . numericals on mole concept Essay 1 mole of any substance can be defined as: Amount of a substance that contains as many particles (atoms, molecules or ions) as there are atoms in 12 g of the 12C isotope Avogadro number or Avogadro constant (NA); equal to × NUMERICAL BASED ON MOLE CONCEPT EDU MANTRA 1 year ago.
61, 16 super trick to solve stoichiometry questions for iitjee mains & advanced, class 11th and 12th, Sky IITJEE/NEET Academy 10 months ago. The mole, symbol mol, is the SI unit of amount of substance.
One mole contains exactly 76 × 10 23 elementary entities. This number is the fixed numerical value of the Avogadro constant, N A, when expressed in the unit mol −1 and is called the Avogadro number.
mole concept objective numerical q a Sun, 21 Oct GMT mole concept objective numerical q pdf - Mole Concept Multiple Choice questions (one answer correct) (1) (1) Avogadroâ€™s number represents the number of atoms in (a) 12g of C12 (b) g of sulphur (24) I mole of a compuund contain 1 mole of C and 2 moles of O.