Physical-Digital Titration

A hands-on lab cockpit for endpoint control.

Turn the encoder like a real burette valve. The digital twin tracks volume, flow, stoichiometry, endpoint behavior, and technique in real time.

Volume

0.00

mL delivered

Valve

0/10

stopcock level

Score

—

submit to score

Experiment

Unknown Strong Acid

25.00 mL unknown monoprotic acid · 0.1000 M NaOH · phenolphthalein

Reaction model: HA + NaOH → NaA + H₂O

Mode

Standard high-school / entry-college titration.

Endpoint Intelligence

Bulk titration

Lab mode

Clear solution. Bulk titration range.

Keep the endpoint approach controlled.

Live Stoichiometry

NaOH delivered: 0 mol

Acid remaining: 1.500 × 10-3 mol

Excess OH⁻: 0 mol

Concentration Engine

Total volume: 25.00 mL

[acid left]: 6.000 × 10-2 M

[excess OH⁻]: 0 M

Hardware Connection

Connect your Arduino Nano

Use Chrome or Edge, then select the Arduino serial port.

Encoder Console

Waiting
ClosedOpen
Ready

Titration Curve

The moving point tracks the live run. The glowing marker is the hidden equivalence zone.

pH model
0102030pHmL NaOH
Digital Twin
Bulk titration
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Indicator color, wave motion, and bubbles respond to the live run.