If Chloe bought it for $50 per dozen, then half a dozen cost her $50/2 = $<<50/2=25>>25.
This means that she has $30 - $25 = $<<30-25=5>>5 profit per half a dozen of chocolate-dipped strawberries.
If Chloe sold 50 dozens, then she was able to sell 50/ 1/2 = 100 half a dozen chocolate-dipped strawberries.
Hence, her profit is $5 x 100 = $<<5*100=500>>500.
#### 500