The administration of 100 mg or more of morphine (molar mass 283) to apatient would probably be lethal. Which of the following wouldyou consider to be a safe dose?Question 7Select one:a.5 ml of a 2 percent solution (w/v)b.5 ml of a 0.1 M solutionc.10 ml of a 1g/L solutiond.8 ml of a 50 mM solutione.none of the above

First, we need to calculate the amount of morphine in each solution:

a. 5 ml of a 2 percent solution (w/v) This means there are 2g of morphine in 100ml of solution. So, in 5ml of solution, there would be 0.1g or 100mg of morphine, which is a lethal dose.

b. 5 ml of a 0.1 M solution Molarity is moles of solute per liter of solution. So, 0.1M means there are 0.1 moles of morphine in 1 liter of solution. Since the molar mass of morphine is 283g/mol, this means there are 28.3g of morphine in 1 liter of solution. In 5ml of solution, there would be 0.1415g or 141.5mg of morphine, which is more than a lethal dose.

c. 10 ml of a 1g/L solution This means there is 1g of morphine in 1 liter of solution. So, in 10ml of solution, there would be 0.01g or 10mg of morphine, which is a safe dose.

d. 8 ml of a 50 mM solution Molarity is moles of solute per liter of solution. So, 50mM means there are 50 moles of morphine in 1 liter of solution. Since the molar mass of morphine is 283g/mol, this means there are 14.15g of morphine in 1 liter of solution. In 8ml of solution, there would be 0.1132g or 113.2mg of morphine, which is more than a lethal dose.

So, the only safe dose from the options given is 10 ml of a 1g/L solution.