Answer
(a) 0.193 M
(b) 0.234 M
(c) 0.407 M
Work Step by Step
Molarity = Number of moles/ Volume (in L)
Molarity = (Number of moles X 1000) / Volume (in mL)
(a) 0.127 mol of sucrose in 655 mL of solution
= 0.127/0.655
= 0.193 M
(b) 0.205 mol of KNO3 in 0.875 L of solution
= 0.205/0.875
= 0.234 M
(c) 1.1 mol of KCl in 2.7 L of solution
= 1.1 / 2.7
= 0.407 M
