# Description

The Molecular Calculator is designed to calculate the molecular and reciprocal weight of any chemical formula.

usage:

* Enter a chemical formula the standard way.

* Symbols can be seperated by blanks.

* Simplified structures are also allowed.

* Formulas cointaining a multiplication (such as hydrates) should be entered without the dot.

* Numbers composed by an integer and a fraction (like 1 1/2) should be replaced by a fraction (3/2) or using decimal notation (1.5).

* The chemical formulas are case sensetive.

Examples:

* H2O

* Ns2SO4

* Fe3[Fe(CN)6]2

* HOOC-CH2-C(OH)(COOH)-CH2-COOH

* H3C-(CH2)7-CH

Internet permission is for adds.

Questions or bug reports? please contact me at malta.dan@gmail.com.

For more applications,check out my public profile at http://profiles.google.com/malta.dan/about.

ENJOY

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# Additional information

Updated

January 8, 2012

Size

309k

Installs

1,000 - 5,000

Current Version

1.1

Requires Android

2.2 and up

Content Rating

Everyone

Permissions

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Flag as inappropriate Offered By

Dan Malta

Developer

# Similar

## Molarity Calculator

The Molarity App from Sigma-Aldrich(R) is a chemistry calculator tool that generates lab-ready directions describing how to prepare an acid or base solution of a specified molarity or normality from a concentrated acid or base solution. A second tab includes a general molarity function that calculates the mass of any reagent needed to prepare a given volume of solution of desired molarity. A third tab features a stock dilution function that calculates how to dilute a stock solution of any known molarity to your desired volume and molarity.

Features:

● Calculates molarity and normality for common commercial acid and base solutions by auto-populating density, formula weight and weight percentage.

● Users may input lot-specific certificate of analysis values for density and weight percentage.

● The Acid and Base instructions link to Sigma-Aldrich website/mobile website to display relevant acid or base products.

● General molarity and solution dilution options feature molar, millimolar, micromolar, picomolar and femtomolar concentration options.

● The Android version includes option to save and share acid and base solution preparation instructions.

Notes:

Normality calculations assume reactions based on H+ or OH- ions.

Concentration of 56.6% ammonium hydroxide is equivalent to 28% ammonia (NH3).

Additional calculation details may be found with online web version at http://www.sigmaaldrich.com/molarity.

## HPLC Calculator

The HPLC Method Transfer Calculator does the following:

● Calculates conditions for transfer of an isocratic or gradient method from one HPLC column to another.

● Recommends flow rates for analytical columns.

● Allows method scaling from microbore through preparative column range based on the 2 sets of column variables (column length, column I.D., particle size) and current method conditions (flow rate, injection volume, pressure, run time, equilibration time).

● Calculates time and solvent saved, if any.

● Supports Ascentis® Express and other common particle sizes.

● Predicts the gradient delay that must be applied when transferring a gradient method, based on the user entered value of dwell volume.

Supelco® is a division of Sigma-Aldrich® Corp. From our main facility in Bellefonte, Pennsylvania, USA, we research, manufacture, and supply chromatography columns and related tools for environmental, government, food and beverage, pharmaceutical, biotechnology, medical, and chemical laboratories. We specialize in four main product areas - 1) gas chromatography packings, columns, and accessories; 2) liquid chromatography packings, columns, and accessories; 3) sample preparation products; and 4) chemical reference standards and reagents.

Our customers can choose what they need from more than 10,000 stock products. We also offer custom-designed chromatography products for unique needs. Our Technical Service scientists help customers troubleshoot problems, verify conditions for product use, provide application assistance, make product recommendations, and assist with custom orders. Our goal is to offer customers the finest chromatography products, backed by the most reliable technical service offered anywhere in the world.

## Dilution calculator

Dilution calculator for distillers.

This trivial app calculates the volume of water that needs to be added to an alcoholic distillate to reduce it to bottling strength. Although it’s not a very complex calculation of course, life becomes a tidbit easier when the result is just a tap away.

This tool should not be used for commercial purposes. Note that it does not take the phenomenon of contraction into account.

## Dilution Calculator (Free)

Dilution Calculator (free) is an app specifically designed to assist biologists, medical biologists, pharmacists and chemists on the lab. The app can calculate dilutions of almost any type: Simple dilutions, Stock dilutions, Serial dilutions, Percent(%) dilutions and Ratio dilutions. In addition to this, the Dilution Calculator is provided with the useful option ‘Minimal pipet volume’ by which the app will take into account, the lowest amount of volume pipet-able; Moreover, it is also provided with the option ‘Step dilutions’ in order to decrease your solvent volume by adding intermediate dilution steps to the calculation.

In the premium version of this App it is even possible to Save your calculations or Export a SpreadSheet to your device and, if necessary, load or edit them later. Furthermore, with the Premium version, you can ‘Share’ all your dilutions with your friends and colleagues.

## Mass Concentration Calculator

This is an application to calculate the mass concentration (it's free).

This application is able to do the calculation of mass concentration. In addition, this application is able to calculate how much "solute" and "solvent" using "concentration (%)" and "solution"

This is how to run this application, enter the known data and press Calculate to output the unknowns.

1. In the Input area, enter the two known quantities with a proper significant figure.

2. Select the units associated with the input.

3. Click Calculate to output the answer.

Leave blank the text view from two of the four, please perform the calculations.

In the calculation of brine concentration, solvent is water, solutes is salt, and solution is brine.

## LabTool

Stöchiometriehilfe fürs Labor

Diese App ist sehr hilfreich für alle, die im Labor arbeiten, sei es im wissenschaftlichen Arbeitsalltag oder in studentischen Praktika. Ständig müssen Lösungen neu angesetzt werden oder vorhandene Lösungen in andere Konzentrationen umgerechnet werden. Welche Menge einer Substanz muss abgewogen werden? Wie viel Flüssigkeit dazu geben werden? Genau das verrät Ihnen ab jetzt Ihr praktischer Laborhelfer.

Nicht nur das Ansetzen molarer und prozentiger Lösungen wird erleichtert, die Umrechnung von molaren Lösungen in prozentige Lösungen und umgekehrt ist durch einfaches Eintragen der vorhandenen/gewünschten Lösung möglich. Es entfallen umständliche Formelumstellungen auf Papier. Den Taschenrechner können Sie getrost beiseitelegen.

Auch zur Kontrolle Ihrer bereits manuell durchgeführten chemischen Rechnungen ist diese App sehr zu empfehlen, wenn gerade kein Kollege in der Nähe ist, der dies übernehmen könnte.

Funktionen im einzelnen:

- Prozentige Lösungen herstellen

- Molare Lösungen herstellen

- Molare Lösungen aus molaren Lösungen verdünnen

- Prozentige Lösungen aus prozentigen Lösungen verdünnen

- Molare Lösungen in prozentige Lösungen umrechnen

- Prozentige Lösungen in molare Lösungen umrechnen

Die App für Biologen, Chemiker, Mediziner, Studenten, Schüler und Technische Assistenten.

Für Anregungen, Verbesserungs- und Erweiterungsvorschläge hinterlassen Sie bitte einen Kommentar. Danke.

## Solution Maker

JCG Apps

1

This solution calculator app is great for undergraduate chemistry students, graduate chemistry students and lab technicians who don't want to waste a lot of time doing tedious calculations. With this app you can calculate:

Molecular Weight:

1) Enter the name of the compound and get the its molecular weight. Be sure to write it right!

2) Flexible input: CH3CH2OH gives the same answer as C2H6O

Dilution Values:

1) You can calculate the amount of stock solution needed to form a new solution

2) You can calculate the concentration of the stock solution if you know its density

3) Solve for any value in M1V1=M2V2!

Solution Values:

1) Calculate the mass of the compound necessary to make a solution

Percent Values:

1) Calculate the mass necessary to make a %, ppm, ppb or ppt solution

2) Calculate values for the whole compound o for one of its constituents

# More from developer

## Periodic Table of the Elemets

Periodic Table of The Elements (Free with no adds)

* 106 elements catagorized according to the following characteristics:

- solid / liquid / gas

- synthetically created

- non metals / alkali metals / alkali earth metals / transition metals / metalloids / halogens / noble gases / rear earth metals.

* tap each of the elements to view 22 of its basic properites:

- symbol

- atomic number

- mass number

- atomic mass

- density

- oxidation states

- electron configuration

- state

- melting point

- boilong opint

- deltaH vaporization

- delta H fusion

- specific heat

- crystal

- atomic volume

- atomic radius

- covalent radius

- thermal conductivity

- electrical conductivity

- ionization potential

- electronegativity

- oxide type

* zoomable screen.

* no permissions required.

* great for students.

Questions or bug reports? please contact me at malta.dan@gmail.com.

For more applications, check out my public profile at http://profiles.google.com/malta.dan/about.

ENJOY

## Atmospheric Calculator

An atmospheric calculator with a twist!

The only atmospheric calculator that allows the complete and

exact calculation of each of the "1976 standard atmosphere"

28 parameters as a function of each of the other parameters!

Tired of calculating pressure or gravitational acceleration solely out of altitude?

well, now you can enter the desired pressure or gravitational acceleration and get the the atmospheric parameters which correspond to the lowest geopotential altitude. This is done for the entire 7 layers of the atmosphere (altitudes up to 84km / 280kft)

The only atmospheric calculator that allows the complete and

exact calculation of each of the "1976 standard atmosphere"

28 parameters as a function of each of the other parameters!

Tired of calculating pressure or gravitational acceleration solely out of altitude?

well, now you can enter the desired pressure or gravitational acceleration and get the the atmospheric parameters which correspond to the lowest geopotential altitude. This is done for the entire 7 layers of the atmosphere (altitudes up to 84km / 280kft)

The atmospheric calculator parameters include:

- geometric altitude

- geopotential altitude

- lapse rate

- temperature ratio

- molecular temperature

- kinetic temperature

- mean molecular weight ratio

- mean molecular weight

- pressure ratio

- pressure

- density ratio

- density

- gravitational acceleration ratio

- gravitational acceleration

- dynamic viscosity ratio

- dynamic viscosity

- kinematic viscosity ratio

- kinematic viscosity

- speed of sound ratio

- speed of sound

- pressure scale height

- number density

- mean air-particle speed

- mean collision frequency

- mean free path

- thermal conductivity ratio

- thermal conductivity coefficient

- mole volume

Each of these parameters is given in metric and english units.

* Extrapolation is allowed(!) and performed for geometric altitudes from zero down to -5km.

* results for geometric altitudes between 80km and 86km are corrected for mean molecular weight ration which is not 1. Note that many 1976 standard atmosphere tables are not corrected according to the mean molecular weight ratio, but they do mention that this correction should be done.

Questions or bug reports?

contact me at malta.dan@gmail.com

For more applications, check out my public profile at:

http://profiles.google.com/malta.dan/about

p.s. network access is for ads.

## Geodetics Calculator

The Geodetics Calculator is designed to solve the first ("direct") and second ("inverse") geodetic problems with an accuracy of 1e-6 meters over a range of 27 different reference ellipsoids and spheriods.

Background:

The first ("direct") geodetic problem is defined in the following manner: given a point (in terms of latitude and longitude) and a direction ("azimuth") and distance from that point to a second point, determine the location (in terms of latitude and longitude) of the second point.

The second ("inverse") problem is defined in the following manner: given two points (in terms of latitude and longitude), determine the direction ("azimuth") and length of a line (in our case, both a geodesic curve (a great circle) and a rhumb line) that connects them.

Usage:

*To solve the first ("direct") geodetic problem, simply enter the origin point, fill direction and azimuth fields and press the Calculate button.

*To solve the second ("inverse") geodetic problem, simply enter the origin and destination points and press the Calculate button.

*In order to change the units in which the input or output fields are given, simply choose a different measurment unit and press the Calculate button.

Terminology:

*Geoid Altitude output field rtepresents the height of the local geoid (EGM96 = Earth Gravity Model 1996) above mean sea level at the origin and destination.

*Forward output field represents the azimuth from origin point to destination point.

*Backward output field represents the azimuth from destination point to origin point.

*Direct output field represents the length of a straight line ("geodesic curve" / "great circle") connecting the origin and destination point, along the reference ellipsoid.

*Rhumb output field represents the length of a rhumb line connecting the origin point to the destination point, along the "meridional earth spheroid model" (radius of 6367.445[km]).

*Latitude and Longitude output fields represent the location of the point located at a given azimuth and distance from the origin point (they are given in degrees with a decimal notation).

Notes:

*Origin and Destination points location can be entered in two different notations:

> degrees decimal notation: choosing "decimal" would require the location input field to be entered in degrees in decimal notation, eg.: 32.156845 or -4.563542.

> degrees/minutes/seconds notation: choosing "d/m/s" would require the location input field to be entered in degrees/minutes/seconds notation, eg.: 32 50 6 or -14 29 50. notice that a space should be enter between the degrees, minutes and seconds.

*Longitude is given in the boundary of [-180.0, 180.0] degrees. Negative longitude represents the western hemisphere and positive longitude represents the eastern hemisphere.

*Latitude is given in the boundary of [-90.0, 90.0] degrees. Negative latitude represents the southern hemisphere and positive latitude represents the northern hemisphere.

*If the origin and destination points are the same, than the distance between them would be zero, and the azimuth between them would be NaN ("not a number").

*If the distance entered by the user is such that the reference ellipsoid would be encircled, than the calculator would take it into consideration.

*Output fields are labeled using indent font, to seperate them from input fiields.

*Geoid altitude is calculated using a bilinear interpolation performed upon a 0.25 degrees grid of point value in a "tide-free" system. The Geoid is given relative ot the WGS84 ellipsoid. Maximum error in Geoid altitude is one meter.

*Rhumb line distance is calculated using earth spheroid radius of 6367435[km]. Deviation from other calculators might originate from the usage of a different earth radius.

Questions or bug reports? please contact me at malta.dan@gmail.com.

For more applications, check out my public profile at http://profiles.google.com/malta.dan/about.

ENJOY