Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u).
Enter a valid molecular formula and press the calculate button to determine the correct molar mass. Atomic mass values for individual elements can be obtained from the Periodic Table of the Elements. Results are expressed in terms of grams/mol.
分子式输入
常用分子式示例
计算结果
输入分子式开始计算
This molarity calculator is a tool for converting the mass concentration of any solution to molar concentration (or recalculating grams per ml to moles). You can also calculate the Mass, Volume or Concentration required for a solution:
mass of a compound required to prepare a solution of known volume and concentration,
volume of solution required to dissolve a compound of known mass to a desired concentration,
concentration of a solution resulting from a known mass of compound in a specific volume.
mass of a compound required to prepare a solution of known volume and concentration,
volume of solution required to dissolve a compound of known mass to a desired concentration,
concentration of a solution resulting from a known mass of compound in a specific volume.
参数输入
输入任意两个值和分子量，自动计算第三个值
计算结果
输入参数开始计算
计算公式
n = m / M
C = n / V
∴ C = m / (M × V)
Calculate the dilution required to prepare a stock solution. The dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
稀释参数
C₁V₁ = C₂V₂ · 填入三个值计算第四个
起始溶液 (母液)
最终溶液 (工作液)
计算结果
输入参数开始计算
连续稀释
In Vivo Dissolution Calculator can automatically calculates the dosage, administration volume, total dosage and concentration for a single animal, supports laboratory animals such as mice and rats, and is suitable for pharmacological and toxicological studies.
实验参数
溶剂比例 (%)
配方结果
输入实验参数开始计算
Buffers are solutions that can preserve their original pH when mixed with an acid or base. The ability of the buffer to maintain its pH is called its buffer capacity.
This buffer calculator provides an easy-to-use tool to calculate buffer molarity and prepare buffer solutions using the formula weight of the reagent and your desired volume (L, mL, or µL) and concentration (M, mM, or nM).
This buffer calculator provides an easy-to-use tool to calculate buffer molarity and prepare buffer solutions using the formula weight of the reagent and your desired volume (L, mL, or µL) and concentration (M, mM, or nM).
选择缓冲液
ACES
MW: 182.2
pH: 6.1 - 7.5
ADA
MW: 190.15
pH: 6.0 - 7.2
ADA disodium salt
MW: 234.12
pH: 6.0 - 7.2
Ammonium acetate
MW: 77.08
pH: 3.75 - 5.75
AMPSO
MW: 227.28
pH: 8.3 - 9.7
AMPSO sodium salt
MW: 249.26
pH: 8.3 - 9.7
BES
MW: 213.25
pH: 6.4 - 7.8
BES sodium salt
MW: 235.23
pH: 6.4 - 7.8
Bicine
MW: 163.17
pH: 7.6 - 9.0
BIS-TRIS
MW: 209.24
pH: 5.8 - 7.2
BIS-TRIS hydrochloride
MW: 245.7
pH: 5.8 - 7.2
BIS-TRIS propane
MW: 282.33
pH: 6.3 - 9.5
Boric acid
MW: 61.83
pH: 8.24 - 10.24
CABS
MW: 235.34
pH: 10.0 - 11.4
Cacodylic acid
MW: 138
pH: 5.22 - 7.22
Calcium acetate hydrate
MW: 158.17
pH: 3.75 - 5.75
Calcium carbonate
MW: 100.09
pH: 8 - 10
CAPS
MW: 221.32
pH: 9.5 - 11.5
CAPSO
MW: 237.32
pH: 8.9 - 10.3
CAPSO sodium salt
MW: 259.3
pH: 8.9 - 10.3
CHES
MW: 207.29
pH: 8.6 - 10.0
Citric acid
MW: 192.12
pH: 2.2 - 6.5
Citric acid monohydrate
MW: 210.14
pH: 2.2 - 6.6
Citric acid trisodium salt
MW: 258.07
pH: 2.2 - 6.7
DIPSO
MW: 243.28
pH: 7.0 - 8.2
EPPS
MW: 252.33
pH: 7.3 - 8.7
Ethanolamine hydrochloride
MW: 97.54
pH: 8.5 - 10.5
Glycolic acid
MW: 76.05
pH: 2.83 - 4.83
HEPBS
MW: 266.36
pH: 7.6 - 9.0
HEPES
MW: 238.3
pH: 6.8 - 8.2
HEPES hemisodium salt
MW: 249.3
pH: 6.8 - 8.2
HEPES potassium salt
MW: 276.39
pH: 6.8 - 8.2
HEPES sodium salt
MW: 260.29
pH: 6.8 - 8.2
Imidazole
MW: 68.08
pH: 5.99 - 7.99
Imidazole hydrochloride
MW: 104.54
pH: 6.1 - 8.1
Magnesium acetate tetrahydrate
MW: 214.45
pH: 3.54 - 5.54
MES
MW: 195.24
pH: 5.5 - 6.7
MES hemisodium salt
MW: 206.73
pH: 5.5 - 6.7
MES hydrate
MW: 195.24
pH: 5.5 - 6.7
MES monohydrate
MW: 213.25
pH: 5.5 - 6.7
MES potassium salt
MW: 233.33
pH: 5.5 - 6.7
MES sodium salt
MW: 217.22
pH: 5.5 - 6.7
MOBS
MW: 223.29
pH: 6.9 - 8.3
MOPS
MW: 209.26
pH: 6.5 - 7.9
MOPS hemisodium salt
MW: 220.25
pH: 6.5 - 7.9
MOPS sodium salt
MW: 231.25
pH: 6.5 - 7.9
MOPSO
MW: 225.26
pH: 6.2 - 7.6
MOPSO sodium salt
MW: 247.24
pH: 6.2 - 7.6
PIPES
MW: 302.37
pH: 6.1 - 7.5
PIPES dipotassium salt
MW: 378.55
pH: 6.1 - 7.5
配制参数
请从左侧选择缓冲液
计算结果
选择缓冲液并输入参数