LabCalPlus

The first figure shows the main interface. Enter the appropriate elements and the molecular weight will be calculated. The selection of elements appearing at the bottom of the screen can be selected via an element browser (Figure 2) or using the periodic system of elements.

The first figure shows the properties of each amino acid. The chemical formula is animated. The second figure shows the mass calculation of an amino acid sequence. Post-translational modifications can also be added. Amino acid sequences from uniprot.org can be imported.

The first figure shows the pH calculation of a single component. The second figure shows the ion gap in a solution to achieve a desired pH. The titration curve is displayed at the bottom of the screen.

The first figure shows a molarity calculation. It is also possible to calculate for amount, mass or molecular weight. The second figure shows the calculation for dilution of a stock solution. The third figure depicts the conversion between mole and mass. The screenshot also depicts the option dialog.