Aluminum has a frequency threshold of 9.846 × - id984610146928254, friezaforceelite

Question

Chemistry: Aluminum has a frequency threshold of 9.846 × 1014 Hz. Which best explains what will happen when light with a frequency below the frequency threshold strikes aluminum? Electrons will be ejected immediately. No electrons will be ejected. Electrons will start being ejected several seconds after the light strikes the aluminum. No electrons will be ejected unless the intensity is very high.

friezaforceelite · Accepted Answer

Answer : The number of servings of this potato chips eaten to consume 0.0230 moles of NaCl must be, 5.39

Explanation :

First we have to calculate the moles of NaCl.

$\text{Moles of NaCl}=\frac{\text{Mass of NaCl}}{\text{Molar mass of NaCl}}$

$\text{Moles of NaCl}=\frac{250.0mg}{58.55g/mol}=\frac{0.250g}{58.55g/mol}=0.004269mol$

Now we have to calculate the number of servings.

As, the number of serving in 0.004269 moles of NaCl = 1 serving

So, the number of serving in 0.0230 moles of NaCl = $\frac{0.0230}{0.004269}=5.39$ serving

Thus, the number of servings of this potato chips eaten to consume 0.0230 moles of NaCl must be, 5.39

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