Pharmacy

Ion Concentration from Conductivity Calculator Ion Concentration from Conductivity Calculator Measured Solution Conductivity (κ) S/mS/cmµS/cm Cation (+) Information Stoichiometric Number (ν+) Ionic Conductivity (λ°+) S·cm²/molS·m²/mol Anion (-) Information Stoichiometric Number (ν–) Ionic Conductivity (λ°–) S·cm²/molS·m²/mol Calculate Concentration Reset Calculation Result Molar Concentration of Salt (c) Individual Ion Concentrations Cation (+) Concentration Anion (-) Concentration Step-by-Step … Read more

Conductivity & Concentration Calculator Conductivity ↔ Concentration Calculator Simple Conversion Kohlrausch’s Law Solve for: Conductivity (κ)Concentration (c)Molar Conductivity (Λm) Conductivity (κ) S/mS/cmµS/cm Concentration (c) mol/L (M)mol/m³ Molar Conductivity (Λm) S·m²/molS·cm²/mol Calculates Conductivity (κ) using: Λm = Λ°m – K√c, then κ = Λm * c Limiting Molar Conductivity (Λ°m) Kohlrausch Constant (K) Concentration (c) mol/L … Read more

Spectrophotometric Dilution Calculator Spectrophotometric Dilution Calculator Stock Solution Absorbance (A₁) (unitless) Target Absorbance (A₂) (unitless) Final Volume (V₂) mLLµL Calculate Volumes Reset Dilution Results Volume of Stock (V₁) Volume of Diluent Step-by-Step Breakdown Dilution Using Absorbance This calculator helps you determine the volumes needed to dilute a stock solution to a desired final absorbance, utilizing … Read more

pKa Finder from Titration Curve & Henderson-Hasselbalch Calculator pKa Finder & Henderson-Hasselbalch Calculator Interactive Titration Curve Tooltip text Hover over the points to learn more. Henderson-Hasselbalch Calculator pH = pKa + log₁₀([A⁻]/[HA]) Calculate pH Calculate pKa Calculate [A⁻] Calculate [HA] pH pKa [A⁻] (Conjugate Base Concentration, M) [HA] (Weak Acid Concentration, M) Calculate Reset Calculator … Read more

Rf Value Percentage Difference & Error Calculator Rf Value Percentage Difference & Error Calculator Percentage Difference Percentage Error Experimental Rf Value 1 Experimental Rf Value 2 Experimental Rf Value Theoretical (Literature) Rf Value Calculate Reset Calculation Result Percentage Formula Used Step-by-Step Breakdown Comparing Rf Values Calculating the Percentage Difference or Percentage Error for Retention Factor … Read more

Chromatography Retention Factor (Rf) Calculator Retention Factor (Rf) Calculator Distance traveled by solute (spot) cmmminches Distance traveled by solvent front cmmminches Calculate Rf Reset Calculation Result Retention Factor (Rf) Step-by-Step Breakdown Chromatogram Diagram Export Result as JPG Export Result as PDF What is the Retention Factor (Rf)? The Retention Factor (Rf) is a fundamental quantity … Read more

Concentration from Absorbance Calculator Concentration from Absorbance Calculator Absorbance (A) (unitless) Molar Extinction Coefficient (ε) M⁻¹cm⁻¹ Path Length (l) cm Calculate Concentration Reset Calculation Result Concentration (c) Step-by-Step Breakdown The Beer-Lambert Law The Beer-Lambert Law (also known as Beer’s Law) is a fundamental principle in optics and chemistry that relates the attenuation of light to … Read more

Codon Usage Calculator / Translator Codon Usage Calculator / Translator DNA Input (A, T, C, G) RNA Input (A, U, C, G) Nucleic Acid Sequence Clean Input Reset Translate & Analyze Analysis Results Translated Protein Sequence Codon Usage Codon AA Count Freq (%) Codon AA Count Freq (%) Synonymous Codon Usage Chart Export Result as … Read more

Sequence Molecular Mass Calculator Sequence Molecular Mass Calculator Peptide Oligonucleotide Peptide Sequence (One-Letter Codes) Clean Input Type: DNA RNA 5′ Triphosphate End Calculate Mass Reset Calculation Results Calculated Molecular Mass 0 Da Sequence Composition Calculating Biopolymer Molecular Mass The molecular mass (or molecular weight) of a biopolymer like a protein or nucleic acid is the … Read more

DNA/RNA Reverse Complement Generator DNA/RNA Reverse Complement Generator DNA (A, T, C, G) RNA (A, U, C, G) Nucleic Acid Sequence Clean Input Reset Generate Generated Sequences Complement Sequence (3′ to 5′): Reverse Complement Sequence (5′ to 3′): Copy What is a Reverse Complement? In molecular biology, the reverse complement of a nucleic acid sequence … Read more