1. Select Substance to Test
or synthesize solution
Custom Formulated Liquid
pH ?
Acidic Side
Neutral
Basic Side
Discovery Challenge
Select a substance from the list. To learn its chemical properties and measure its exact pH, use the interactive dip sensor.
2. Choose Test Probe & Analyze
— 250ml
— 200ml
— 150ml
— 100ml
— 50ml
Hydronium (H₃O⁺)
Hydroxide (OH⁻)
Measured pH Value
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Sensor Dry
0
2
4
6
8
10
12
14
Ion Inventory mol/L (M)
[H₃O⁺] (Acidic)
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[OH⁻] (Basic)
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Auto-ionization Product:
Kw = [H₃O⁺][OH⁻] = 1.0 × 10⁻¹⁴