Answer
$$0.95 ml$$
Work Step by Step
1. First we calculate the mass concentration of solution. To do so, we divide mass with volume: $\frac{80 mg}{0.8 ml} = 100g/ml$
2. Next, we convert the body weight from lbs to kg. The conversion factor is 1 lbs = 0.45359 kg. $14lbs\times0.45359 lb/kg = 6.35029 kg$
3. Next we multiply the body weight in kg with mass of acetaminophen needed per kg to get the required mass of acetaminophen. $6.35029 kg\times15 mg = 95.25440 mg$
4. Finally, we divide the required mass of acetaminophen with its mass concentration to get the required volume of acetaminophen solution $95.25440mg\div100 mg/ml = 0.9525440 ml$
5. Round to two significant figures to get $$0.95 ml$$
