Question

Il see one question at a time. The questions are randomly selected for eachs back and forth between questions (within the exam), and if necessary correct question temporarily. Question 4 if 150 ml of 4.00 M KOH is diluted to 1.50 L, the resulting solution contains (Careful, this is a trick question! Think about what is being asked) 0.40 moles of KOH 0.60 moles of KOH 0.027 moles of KOH 4.00 moles of KOH • Previous o ©

Answer 1

Dilution is the prosess where a solution is added more of the solvent to decrease the concentration of the solute. In dilution, the amount of solute does not change, the number of moles are the same before and after dilution.

Concentration of KOH= 4 M=4 mols/L

Volume of KOH=150 ml=0.15 L

No. of moles of KOH in 0.15 L 4 M KOH=(0.15*4) moles =0.6 moles.

As,there is no chnage in number of moles in dilution,number of moles of KOH in 1.5 L solution is 0.6.

$\therefore$ Second option is the correct answer.