Answer:
3.024 M.
Explanation:
- Based on at the neutralization, the no. of millimoles of acid (HCl) is equal to the no. of millimoles of the base (ammonia).
(MV)HCl = (MV)ammonia
M of HCl = 0.80 M & V of HCl = 18.9 mL.
M of ammonia = ??? M & V of ammonia = 5.0 mL.
∴ M of ammonia = (MV)HCl / V of ammonia = (0.80 M)(18.9 mL) / (5.0 mL) = 3.024 M.
