Which of these observations helped Rutherford determine that atoms have tiny, dense, positively charged nuclei?

Chemistry

1 answer:

gladu [14]2 years ago

5 0

The third reason helped Rutherford to discover the nucleus.

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Calculate the percentage by mass of the indicated element in the following compounds. Hydrogen in ascorbic acid, HC6H7O6, also k

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Answer: The mass percent of hydrogen in ascorbic acid is 4.5 %

Explanation:

In $C_6H_8O_6$ , there are 6 carbon atoms, 8 hydrogen atoms and 6 oxygen atoms.

To calculate the mass percent of element in a given compound, we use the formula:

$\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100$

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$\text{Mass percent of hydrogen}=\frac{8g}{176}\times 100=4.5\%$

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