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2 years ago

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An infrared wave traveling through a vacuum has a frequency of 4. 0 × 1014 Hz. What is the wave’s wavelength? 7. 5 × 107 m 7. 5

× 10–7 m 1. 2 × 1014 m 1. 2 × 10–14 m.

1 answer:

saw5 [17]2 years ago

4 0

Explanation:

c=flamda

lamda, wavelength=c/f

=(3×10⁸)/(4.0×1014)

= use a calculator

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Answer:

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In this case, according to the given information and chemical equation, it turns out possible for us to calculate the moles of C2O4^2- by firstly setting up the equilibrium expression:

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However, according to the question, we just need to apply the given 1:3 mole ratio in the chemical reaction, of iron (III) ions to oxalate ions to obtain:

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