100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the solution?

Update: Could also use some help with these ones as well as the one in the OP.

What volume (in L) of 1.1 M FeCl₃ would be required to obtain 0.70 moles of Cl⁻ ions?

What is the number of moles of glucose of C6H12O6 in .500L of a .40 M solution?
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