Answer: 30 meq
Explanation:
We know that 1 gallon = 3.785 Litres
1 litre = 1000 milliliters
1 gallon = 3785 ml
Concentration = weight/volume
= 565/3785
= 0.149 g/ml
= 149 mg/ml
Multiplying with 15 ml we get
= 149*15 = 2235 mg
The atomic weights of:
Potassium (K) = 39
Chlorine (Cl) = 35.5
Finding the equivalent weight of Kcl = 39 + 35.5 = 74.5
So, 1 equivalent of KCl is 74.5 g
= 2235 mg * 1 meq/74.5 mg = 30 meq K+
Therefore, there are 30 milliequivalents of K in 15 ml of this solution
