Problem: Calculate the pH of the resulting solution if 35.0 mL of 0.350 M HCl(aq) is added toa) 25.0 mL of 0.450 M NaOH(aq)ph=____b) 45.0 mL of 0.350 M NaOH(aq).ph= ______

Let’s first write the balanced reaction between HCl and NaOH:

▪ HCl → strong binary acid
▪ NaOH → (OH^- with Group 1A ion) → strong base
▪ the reaction between a strong base and strong acid → no need to create an ICE chart

Balanced reaction:              HCl_(aq) + NaOH_(aq) → H₂O_(l) + NaCl_(aq)

a) 35.0 mL of 0.350 M HCl(aq) is added to 25.0 mL of 0.450 M NaOH(aq)

Step 1: Calculate the initial amount (in moles) of the HCl and NaOH