For the following reaction, Given 0.0500 mol of Ba(OH)2, how many moles of HCI are needed using balanced equation below?
2 HCI (aq) + Ba(OH)2 (aq)
-›
BaCI2 (ag)
+ 2 H20 g)
According to the balanced equation, 2 moles of HCl react with 1 mole of Ba(OH)2 to produce 1 mole of BaCl2 and 2 moles of H2O.
Therefore, to determine how many moles of HCl are needed to react with 0.0500 mol of Ba(OH)2, we need to use the mole ratio:
2 mol HCl / 1 mol Ba(OH)2
So:
0.0500 mol Ba(OH)2 x (2 mol HCl / 1 mol Ba(OH)2) = 0.100 mol HCl
Therefore, 0.100 mol of HCl are needed to react with 0.0500 mol of Ba(OH)2.