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horsena [70]
2 years ago
10

B) The size of a star is a balance between 2 things. Explain this statement.

Chemistry
1 answer:
Zielflug [23.3K]2 years ago
8 0

Answer:

Luminosity is the amount of light that a star radiates. The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth

Explanation:

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A 10g vial must have 45ml of diluent added to it. it has a powder volume of 5ml. how many mgr will be in each ml of the final so
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The solution has a concentration 20 mgr in each mL of the final solution.

To solve this problem, we need to know about concentration. The concentration formula can be defined as how much the mass per unit volume is. It can be written as

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where M is concentration, m is mass of solute, V is the total volume of solution.

From the text we know that :

m = 10g

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find the total volume (V)

V = vsolvent + vsolute

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