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xeze [42]
3 years ago
12

Why is the nucleus very tense?

Chemistry
1 answer:
iren [92.7K]3 years ago
7 0
Atoms are composed almost entirely of empty space, about 99.99999999% empty space. Virtually all of the atom's mass is from its protons an neutrons. In cases where intense gravity has 'squeezed out' most of the empty space, such as in a neutron star, the matter is incredibly dense. This density is approximately equivalent to the mass of a Boeing 747 compressed to the size of a small grain of sand, or the human population condensed to the size of a sugar cube.
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<h3>Answer:  b) 0.250 mol</h3>

============================================

Work Shown:

Using the periodic table, we see that

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These are approximations and these values are often found underneath the atomic symbol. For example, the atomic weight listed under carbon is roughly 12.011 grams. I'm rounding to 2 sig figs in those numbers listed above.

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-------------------

Since 1 mole of CO2 is 44 grams, we can use that to convert from grams to moles.

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In short,

11.0 grams of CO2 = 0.250 mol of CO2

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