Questions: Keq Calculations: Tiny K Values [NOCl]/K=93,750 Can you neglect the change in "X" based on the " 500 Rule"? No, the change in X cannot be neglected. There is not enough information to decide. Yes, the change in X can be neglected.

Keq Calculations: Tiny K Values [NOCl]/K=93,750 Can you neglect the change in "X" based on the " 500 Rule"? No, the change in X cannot be neglected. There is not enough information to decide. Yes, the change in X can be neglected.
Transcript text: Keq Calculations: Tiny K Values \[ \frac{[\mathrm{NOCl}]}{\mathrm{K}}=93,750 \] Can you neglect the change in "X" based on the " 500 Rule"? No, the change in $X$ cannot be neglected. There is not enough information to decide. Yes, the change in $X$ can be neglected.
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Solution

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Solution Steps

Step 1: Understanding the 500 Rule

The 500 Rule is a guideline used in equilibrium calculations to determine if the change in concentration, \( X \), can be neglected. It states that if the initial concentration divided by the equilibrium constant \( K \) is greater than 500, the change \( X \) can be neglected.

Step 2: Applying the 500 Rule

Given the expression:

\[ \frac{[\mathrm{NOCl}]}{K} = 93,750 \]

This value is significantly greater than 500.

Step 3: Conclusion

Since \(\frac{[\mathrm{NOCl}]}{K} = 93,750\) is much greater than 500, according to the 500 Rule, the change in \( X \) can be neglected.

Final Answer

\(\boxed{\text{Yes, the change in } X \text{ can be neglected.}}\)

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