To find the number of donuts Ramon makes in 5 hours using a unit rate, we first need to determine the rate at which he makes donuts per hour.
Ramon makes 33 donuts in 7 hours, so the rate per hour is:
\[ \text{Rate} = \frac{33 \text{ donuts}}{7 \text{ hours}} \approx 4.71428571 \text{ donuts per hour} \]
Now, we multiply this rate by 5 hours to find out how many donuts he would make in that time:
\[ \text{Donuts in 5 hours} = 4.71428571 \text{ donuts/hour} \times 5 \text{ hours} \approx 23.57142855 \]
Since we only want whole donuts, we round down to the nearest whole number:
\[ \text{Whole donuts} = 23 \]
Therefore, the answer is 23.