Open navigation menu
Loading resource…
Chemistry exploration lab · 25°C
Adding water keeps the number of moles of solute constant while total volume increases, so concentration decreases.
HCl approaches 7 from below; NaOH approaches 7 from above. The pH meter gives numbers, the indicator only gives a range.
Do not interpolate pH from volume. Dilution alone does not turn an acid into a base or vice versa.
REACTION BEAKER · 500 mL
Volume
0 mL
SOLUTION pH
—
Initial amounts before neutralization
H⁺ and OH⁻ react in a 1:1 molar ratio; other ions stay in solution. The display is relative to support observation and does not show actual ion counts.
HCl
Strong acid in the model
500 mL remaining. Press Pour repeatedly or use Space/Enter.
Spacing is for readability; pH values remain logarithmic.
A one-unit pH difference corresponds to about ten times in [H⁺] within the model range.
State: —
Values are computed with the ideal solution model at 25°C.
No solution yet for the indicator to reflect a pH range.
Learning simulation · Ideal strong HCl/NaOH · 25°C · Not a substitute for real laboratory instructions.