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3 years ago

How many oxygen atoms in 4 Al 2 O 3

Chemistry

1 answer:

Zolol [24]3 years ago

6 0

The number of oxygen atoms that are in 4 Al₂O₃ are 12 atoms

Explanation

The subscript in a chemical formula indicate the number of atoms of element immediately before the subscript.

coefficient is the number in front of the formula and tells us how many molecules of a given formula are present.

Since 4Al₂O₃ has coefficient of 4 and the subscript of O is 3 the number of O atoms = 4 x 3=12 atoms

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3 years ago

On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance Mass (amu) 46Ti 72.000% 45.9526

tiny-mole [99]

Answer:

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Explanation:

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$\text{Average atomic mass }=\sum_{i=1}^n\text{(Fractional abundance)}_i\times \text{(Atomic mass of an isotopes})_i$

Average atomic mass of titanium atom:

$0.72000\times 45.95263 amu+0.14300\times 47.94795 amu+0.13700\times 49.94479 amu=46.784886 amu$

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3 years ago

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Answer:

true

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calculating the average atomic

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