General Chemistry & Solution Calculator
Calculate solution molarity and stock dilutions, determine pH/pOH equilibrium, and solve ideal gas states
mol/L (Molarity)
Stock Solution Dilution (C₁V₁ = C₂V₂)
Concentrated stock solution
Required Solute Mass (from pure solid)
14.61 g
0.250 moles • Mass Concentration: 29.22 g/L
Stock Aliquot Required (V₁)
125.0 mL
Volume of 2.0 M stock to pipet
Diluent / Solvent to Add
375.0 mL
Deionized water (V₂ – V₁)
Dilution Factor
4.00×
1:4 volumetric dilution ratio
Total Solute Particles
1.51 × 10²³
Based on Avogadro’s constant
mol/L
Acidity & Solution pH
pH 1.60
Strongly Acidic
pOH = 12.40 • Neutral at 25°C (pH 7.00)
Hydronium Concentration [H₃O⁺]
2.50 × 10⁻² M
Free aqueous hydrogen ions
Hydroxide Concentration [OH⁻]
4.00 × 10⁻¹³ M
From Kw auto-ionization
Degree of Ionization (α)
100.0%
Complete strong acid dissociation
Auto-ionization Product (Kw)
1.00 × 10⁻¹⁴
Standard aqueous state at 298.15 K
~42.02 g of N₂
Calculated Equilibrium Pressure
3.670 atm
371.8 kPa • 3.718 bar (2,789 mmHg)
Gas Density (ρ)
4.20 g / L
At current P and T
Standard STP Volume (0°C, 1 atm)
33.62 L
22.414 L / mol standard molar volume
Total Molecules Present
9.03 × 10²³
1.50 moles × 6.022 × 10²³
Thermodynamic Temperature
298.15 K
Absolute temperature scale