To calculate the percent error, use the following formula:

$\text{Percent Error} = \left( \frac{|\text{Experimental Value} - \text{True Value}|}{\text{True Value}} \right) \times 100$

Here:

• The experimental value is $929 \, \text{mL}$.
• The true value is $1 \, \text{quart}$, which equals $946.353 \, \text{mL}$.

Now, substituting these values into the formula:

$\text{Percent Error} = \left( \frac{|929 - 946.353|}{946.353} \right) \times 100$

Let's calculate that.

$\text{Percent Error} = \left( \frac{17.353}{946.353} \right) \times 100 \approx 1.833\%$

So, the percent error is approximately 1.83%.

Would you like more details or have any questions? Here are some related questions:

1. How do we convert quarts to milliliters accurately?
2. What does a small percent error indicate in an experiment?
3. How can one improve experimental accuracy in volume measurements?
4. Can percent error ever be negative, and why?
5. How do we calculate percent difference between two experimental values?

Tip: Always double-check unit conversions in experimental measurements to minimize errors.