What is the mass (in grams) of [tex]4.35 \times 10^6[/tex] atoms of [tex]^{12}C[/tex]?
Answer (3)
[mass = moles \times Relative formula mass
mass = 4.35\times10^6/6\times 10^23 \times 12
mass = 8.66... \times 10^-17 g ]
The** mass **of 4.35 ×10⁶ atoms of **carbon-12 atom **is 8.668×10 − 17 g.
What is a mole ?
A mole is a standard specific unit prescribed for measuring large quantities of entities which are very small such as atoms, molecules.It represents large number of units that is 6.022×10²³.
It was previously defined as the number which were experimentally determined to be found in **12 grams **of carbon-12 .Number of atoms in a mole is same for all substances.
Concept of mole provides** quantitative information** as to what happens in chemical reaction at a **macroscopic level.**It is used for determination of simplest formula of a compound.
For all practical purposes, mass of one mole of compound in grams is approximately equa l to mass of one molecule of compound measured in Daltons.
Learn more about moles here:
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The mass of 4.35 × 1 0 6 atoms of carbon-12 is approximately 8.674 × 1 0 − 17 grams, calculated using the number of atoms divided by Avogadro's number, then multiplied by the molar mass of carbon-12.
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