The administration of 100 mmoles or more of potassium ions to apatient would probably be lethal. Which of the following wouldyou consider to be a safe dose of potassium chloride (molar mass 74.55)?Question 1Select one:a.300 ml of a 5 percent solution (w/v)b.50 ml of a 5 M solutionc.50 ml of a 50 mg/100ml solutiond.70 ml of a 2 M solutione.none of the aboveClear my choice

First, let's understand what each option means:

a. 300 ml of a 5 percent solution (w/v): This means that there are 5g of potassium chloride in 100ml of solution. So, in 300ml, there would be 15g. To convert this to moles, we divide by the molar mass (74.55g/mol), which gives us approximately 0.201 moles.

b. 50 ml of a 5 M solution: Molarity (M) is the number of moles of solute per liter of solution. So, a 5M solution has 5 moles of potassium chloride per liter. In 50ml (or 0.05 liters), there would be 0.25 moles.

c. 50 ml of a 50 mg/100ml solution: This means that there are 50mg of potassium chloride in 100ml of solution. So, in 50ml, there would be 25mg. To convert this to moles, we divide by the molar mass (74.55g/mol), but first we need to convert mg to g (25mg = 0.025g), which gives us approximately 0.000335 moles.

d. 70 ml of a 2 M solution: A 2M solution has 2 moles of potassium chloride per liter. In 70ml (or 0.07 liters), there would be 0.14 moles.

e. none of the above

Given that the administration of 100 mmoles or more of potassium ions to a patient would probably be lethal, the safe dose would be the one with the least amount of moles.

So, the answer is c. 50 ml of a 50 mg/100ml solution, as it contains approximately 0.000335 moles of potassium chloride, which is the smallest amount among the options.