Nalorphene `(C_(19)H_(22)NO_(3))`, similar to morphine , is used to combat withdrawal symptoms in narcotic users. The dose of nalorphene generally given is `1.5 mg`. Calculate the mass of solution of `1.5xx10^(-3)m` aqueous solution required for the above dose.

Explanation

To solve the problem, we need to calculate the mass of a 1.5 x 10^(-3) m (molal) aqueous solution required to deliver a dose of 1.5 mg of nalorphene (C₁₉H₂₂NO₃). Here are the steps to arrive at the solution:

### Step 1: Convert the dose of nalorphene from milligrams to grams
The dose given is 1.5 mg. To convert this to grams:
\[ 1.5 \, \text{mg} = \frac{1.5}{1000} \, \text{g} = 0.0015 \, \text{g} \]

...