Answer
There are 90 mL of alcohol in a 0.750 L bottle of wine,
Work Step by Step
1. Identify the conversion factors.
- We need to convert from "L(wine)" to "mL(alcohol)".
Looking at the table 2.7 (Page 38), we can see that:
$1$ $L $ $ = 1000$ $mL$
and the exercise gives:
$100\%$ $wine = 12\%$ $alcohol$
2. Calculate the value of alcohol in milliliters, using the conversion factors:
$0.750$ $L(wine) \times \frac{1000mL}{1L} \times \frac{12\%(alcohol)}{100\%(wine)} = 90$ $mL (alcohol)$
3. Adjust the number to the correct number of significant figures.
- The used number that has the fewest number of significant figures is "12%", with 2. Therefore, the result of the multiplication must have 2 SFs.
$90$ $mL = 90$ $mL$
