Use the Molarity Calculator to calculate the mass, volume or molar concentration required to prepare a solution of compound of known molecular weight.
Protein Concentration Calculator (OD260/OD280)OD280 Value OD260 Value Protein (very pure) Concentration (mg/ml) Protein (Contaminated) Concentration (mg/ml)• Unknown pure proteins or protein mixtures: Use the following formula to roughly estimate protein concentration. Protein Concentration (mg/...
Antibiotic Concentration CalculatorConcentration: Volume: Stock Solution: × = Work Solution: ×Antibiotics Concentration TableAntibiotic Stock Concentration (mg/ml) Use Concentration (ug/ml) Solvent Stock Temperature Ampcillin 50 20 Water (H2O) -20 ̊C Carbenicillin 50 20 50% Ethanol -20 ̊...
Concentration Conversion Calculator(Enter number on the left side; answer appears on the right side) This many: Equals See also Converting from mg/m3 to ppm at CCOHS.Laboratory operations are a breeze with Ohaus analytical balances from Safety Emporium....
In volumetric analysis, the concentration is expressed by normality (the number of gram equivalents of the active constituent per 1 l of solution) and by titer (the number of grams of active substance or the substance being determined per 1 ml of solution). In practice, concentration is ...
Molar Solution Concentration CalculatorMeant to be used in both the teaching and research laboratory, this calculator (see below) can be utilized to perform a number of different calculations for preparing molar solutions when starting with the solid material. For example, the known molecular weight ...
FORMULA: n M = = (0.500)(0.50) V = 0.25 mol 1 40.0 mol g = 10.0 g solvent solute 1. Mass out 10.0 g of NaOH 2. Add the solid to the clean and empty volumetric flask. 3. Pour in some of the solvent and swirl to dissolve. 4. Add more solvent up to 500 mL. 5. Mix ...
Cells were harvested, washed twice, and resuspended in lysis buffer (20 mM Tris HCl pH 8, 140 mM KCl, 40 mM MgCl2, 0.5 mM DTT, 100 μg/mL chloramphenicol, 1 mg/mL heparin, 20 mM EGTA, 1% Triton X-100). Heparin was used as a RNase inhibitor. After mechanical ...
Arifin WN. Sample size calculator. 2022.http://wnarifin.github.io. Accessed 14 Apr 2022. Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics. 1977;33:159–74. ArticleCASPubMedGoogle Scholar Buathong S, Leelayoova S, Mungthin M, Ruang-Areerate T, ...
What is the pH of a 500 mL solution that is 0.128 M HA after you add 0.300 moles of NaA (the salt form of the conjugate)? pKa = 5.01 Explain how to use your calculator to find the concentration of hydrogen ion in a solution that has a pH of 7.6. ...