Chemspread Pro for Windows

Name: Chemspread Pro
Rating: 1 (1 reviews)
Author: ChemistryCalculator

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Editors’ Review

Download.com staffFebruary 26, 2026

This free Java applet handles chemical equation balancing and stoichiometry. It performs complex calculations including equilibrium, gas laws, and molecular weights.

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Free

Pros
- Balances chemical equations accurately.
- Performs stoichiometry and equilibrium calculations.
- Calculates percentage mass and titrations.
- Includes ideal and non-ideal gas calculations.
- Computes molecular weights using the periodic table.
Cons
- Requires Java runtime environment.
- Interface may seem basic to some users.
- No advanced graphing capabilities shown.

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Full Specifications

GENERAL

Release: March 30, 2010

Latest update: February 26, 2026

Version: 3.4

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 10
Windows 2003
Windows Vista
Windows Server
Windows 7
Windows 98
Windows XP
Windows ME
Windows NT
Windows 2000

Additional Requirements: Java 1.0

POPULARITY

Total Downloads: 14,913

Downloads Last Week: 0

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User Reviews

1/5

1 User Votes

Doesn't work and doesn't allow you to debug.
anthony1kingFebruary 11, 2010
Pros
The program doesn't run so I cannot evaluate it other than to say because it doesn't run it is not any good.
Cons
Upon activation I receive the following: Debug Assertion Failed! File: filefind.cpp Line: 354 I am then asked if I would like to debug, I say yes then the dialog disappears and nothing else happens. End of program. Is this some kind of spyware?
Summary
I cannot say whether I like it or not because It doesn't work! Try offering a download that really runs and I can tell you what I think about it.

Developer’s Description

By ChemistryCalculator

Balance virtually any chemical equation and follow up with stoichiometry calculations.

Free Java Applet is a chemistry spreadsheet calculcator that balances virtually any chemical equation and follows up with stoichiometry calculations as well as equillibrium calculations. Percentage mass, titrations, ideal and non-ideal gases. Knows the periodic table and computes molecular weight of all entries. Partial pressures and Van der Waals equation. Tutorial has 26 examples to teach how to balance chemical equations.

Chemspread Pro for Windows

Editors’ Review

Top Recommended Alternative

MAIA Text2ASCII

Pros

Cons