Final answer:
The total charged weight of the dry chemical extinguisher can be calculated by adding the weight of the herbicide Treflan and the weight of the insecticide Paris Green.
Step-by-step explanation:
The total charged weight of the dry chemical extinguisher can be calculated by adding the weight of the herbicide Treflan (C13H16N2O4F) and the weight of the insecticide Paris Green (Cu4(ASO3)2(CH3CO2)2).
Firstly, we convert the weight of Treflan from pounds to grams by multiplying by 454 (1 lb = 454 g). So, 25 lb of Treflan is equal to 25 * 454 g = 11350 g.
Next, the weight of Paris Green is already given in kilograms, so it remains the same at 0.125 kg.
To find the total charged weight, we simply add the weights of Treflan and Paris Green: 11350 g + 0.125 kg = 11350 g + 125 g = 11475 g.