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Rina8888 [55]
3 years ago
13

What is the percent of aluminum found in Al2SO4

Chemistry
1 answer:
Masteriza [31]3 years ago
8 0

Answer:

15.772%

Explanation:

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What is the energy per mole of photons, in kJ/mol, emitted by an argon ion laser which produces a green beam with a frequency of
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Answer:

Energy per mole of photons = 2.31 × 10^2 KJ/mol

Explanation:

Energy, E = hf;

Where h is Planck's constant = 6.63 ×10^-34, and f is frequency of the photons.

E = 6.63 × 10^-34 × 5.8 × 10^14

E = 3.84 × 10^-22 KiloJoules

I mole of photons contains Avogadro's number of particles, 6.02 × 10^23

Therefore, the energy per mile of photon is 3.84 × 10^-22 KJ × 6.02 × 10^23

Energy per mile of photon = 2.31 × 10^2 KJ/mol

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Which of the following is the best definition of a scientific theory?Help me plz
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Hypobromite is used to purify contaminated water. What is the formula for hypobromite?
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...... The answer is : a. BrO⁻

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