What volume is needed to obtain each of the following amounts of solute? Express the answer with the appropriate units
A: Liters of a 2.40M KBr solution to obtain 2.50 moles of KBr
B: liters of a 1.90M NaCl solution to obtain 14.0 moles of NaCl
C: milliliters of a 0.700M Ca (NO3)2 solution to obtain 4.00x10^-2 mole of Ca (NO3)2