Answer:
0.834 mole = 13293.32 mg
2,600 mg = 0.16 mole
Step-by-step explanation:
1 mole of K = 39.098 g
=> 0.34 mole has (0.34)(39.098) = 13.29332g
13.29332 g x 10^3 = 13293.32 mg
so 0.834 mole of K = 13293.32 mg
mole of 2,600mg = (0.834)(2,600)/(13293.32) = 0.16311952168 or 0.16 mole