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Nuetrik [128]
3 years ago
8

What is the energy of a photon that has a frequency of 0.5 Hz?

Chemistry
1 answer:
fomenos3 years ago
5 0
<h3>Answer:</h3>

3.313 × 10^-34 Joules

<h3>Explanation:</h3>

The frequency of a photon is 0.5 Hz

Required to find the energy of a photon;

We need to use the formula for energy of a photon;

Energy,E=hf, where h is the plank's constant and f is the frequency of the photon.

Plank's constant, h = 6.626 × 10^-34 J-s

Therefore;

Energy =  6.626 × 10^-34 J-s × 0.5 Hz

            = 3.313 × 10^-34 Joules

Thus, the energy of a photon with a frequency of 0.5 is 3.313 × 10^-34 Joules

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5 moles of Fe

Explanation:

The equation of the reaction is;

2 Al(s) + Fe 2O 3(s) --> 2Fe (s) + Al 2O 3 (s)

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2 years ago
A chemist dissolves 484 .mg of pure perchloric acid in enough water to make up 240.mL of solution. Calculate the pH of the solut
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The molar mass of perchloric acid is 100.46 g/mol. The moles corresponding to 484 mg (0.484 g) are:

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