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Fofino [41]
3 years ago
11

Is the Hertzsprung-Russell diagram still a valid instrument in studying stars, given that it is over 100 years old?

Chemistry
2 answers:
svet-max [94.6K]3 years ago
8 0

Answer:

Yes.

Explanation:

Hello,

As long as it shows important relationships between the size and color of stars, age wouldn't affect observation and measurement but will just provide more accurate results but the method is still valid.

Best regards.

klemol [59]3 years ago
8 0

Answer:

Yes, because it is still relevant today.

Explanation:

It shows the coloration of stars with each other, the brightness and all.

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First you must calculate the number of moles in this solution, by rearranging the equation. No. Moles (mol) = Molarity (M) x Volume (L) = 0.5 x 2. = 1 mol.

For NaCl, the molar mass is 58.44 g/mol. Now we can use the rearranged equation. Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44. = 58.44 g.

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