How many moles of Ba open paren NO sub 3 close paren sub 2 are there in 0 point 2 5 liters of a 2 point 0 0 cap m Ba open paren NO sub 3 close paren sub 2 solution? Use molarity is equal to moles of solute over liters of solution
Answer
A
0 point 1 3 mol
B
2 point 2 5 mol
C
0 point 5 0 mol
D
8 point 0 mol
Explanation
Use the molarity relationship: moles of solute = molarity × liters of solution. So, 2.00 mol/L × 0.25 L = 0.50 mol Ba(NO₃)₂. The correct choice is 0.50 mol.
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