1. Mass of all the atoms in a compound Across
2. Avogadro's number
3. SI unit to measure number of atoms
4. mass in grams of mole of a compound 5. the average mass of an SATI NEED TO KNOW elegant
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1. Mass of all the atoms in a compound Across
2. Avogadro's number
3. SI unit to measure number of atoms
4. mass in grams of mole of a compound 5. the average mass of an SATI NEED TO KNOW elegant
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Answer:
1.The sum of mass of all the atoms in a molecule is known as molecular mass.
2.Avogadro's number is a proportion that relates molar mass on an atomic scale to physical mass on a human scale. Avogadro's number is defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022×1023 mol-1 and is expressed as the symbol NA.
3.The mole is an SI unit that links the microscopic and macroscopic world. It allows scientists to measure large quantities of very small entities, such as atoms or molecules. Initially, units called 'gram-atom' and 'gram-molecule' were used to specify amounts of chemical elements or compounds.
4.The molar mass of any compound is the mass in grams of one mole of that compound. One mole of carbon dioxide molecules has a mass of 44.01g, while one mole of sodium sulfide formula units has a mass of 78.04g