Question

A solution to replace potassium loss contains 43 mEq/L each of K+and Cl- 1- how many...

A solution to replace potassium loss contains 43 mEq/L each of K+and Cl-
1- how many moles of K+ are in 1.9 L of the solution?
_________\_= mole K+
2- how many moles of Cl- are in 1.9 L of the solution
__________=molCl-

Express your answer using two sig figs

Homework Answers

Answer #1

equivalent weight of K+ and Cl- is equal to their molar mass
so,
number of mole = number of equivalent

number of milliequivalent = (concentration in milliequivalent)*(volume in L)
1)
number of milliequivalent of K+ = 43*1.9
= 81.7 milliequivalent

number of equivalent of K+ = (81.7*10^-3) Eq
= (8.17*10^-2) mole
= (8.2*10^-2) mole
2)
number of milliequivalent of Cl- = 43*1.9
= 81.7 milliequivalent

number of equivalent of Cl- = (81.7*10^-3) Eq
= (8.17*10^-2) mole
= (8.2*10^-2) mole

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