Scientific Calculators for iOS
Molecular Weight Calculator for Elements
The molecular weight calculator for elements allows to enter a chemical formula (sum) and the corresponding molecular weight and elemental composition will be calculated.
The main interface allows to enter elements and optionally numerical suffixes. The corresponding molecular weight is displayed in the upper right corner.
The toolbars contain buttons to select elements, which appear in the lower part of the screen.
The central toolbar contains buttons for interaction with the chemical formula.
: The result of the calculation is displayed in the upper right part. Additionally the elemental composition is displayed.
: A formula can be entered by tapping element buttons in the lower part of the screen (selected elements).
provide functionalities to edit the formula, to enter parentheses and to add numerical suffixes.
: Elements that should be displayed to generate the formula can be selected via the element browser (bottom toolbar) or via the periodic system of elements (PSE, top toolbar)
Enclosing marks: Tap the open or close parenthesis to add enclosing marks to the formula
Spacer: Tap to insert a space (point) for better readability
Enter Edit Mode: Tap to enable editing of the formula
Delete last item: Tap to delete last item
Delete all: Tap to clear all
Add numeric suffix: Tap the button to add a numeric suffix to an element or closed parenthesis (obligatory).
To switch between the slider a the NumPad tap the switch button.
To change the numeric suffix move the slider to the left or right. To change the minimum or maximum slider value tap the corresponding labels.
Sort selected elements: Tap to sort by atomic weight or custom order. The custom can be defined in the element browser.
Element browser: Tap to select or arrange elements
The element browser allows to select elements, which are displayed in the main interface. It it also possible to define the order of elements in the main interface.
The table of elements allows to select elements to be displayed in the main interface.
: Details of the selected element are displayed
Elements are displayed in a list view
View mode: The list of elements can be sorted by name or atomic number. All elements are displayed.
To select an element tap the switch button (select element).
View mode "Selection": Selected elements (elements which appear in the main interface) are displayed. To sort the elements tap the sort button (sort selected elements).
Done: To confirm the selection tap "Done". Tap outside the element browser to dismiss the selection.
: Tap the left or right arrow to display the next or previous element.
Periodic system of elements
To display the periodic table tap on "PSE" (top toolbar, right). In landscape mode the entire table will be displayed. In portrait mode only the main elements are visible.
: Tap button to enable selection of elements. Currently selected elements are highlighted. To add or remove elements tap the corresponding element.
Tap "Done" to dismiss the table and apply the selection.