Molecular Weight Calculator

Built-in atomic weights.  Names and symbols of the elements.

   Ideal Gas Law Calculator    To LMNO Engineering home page   Trouble printing?

Click on the elements that form your chemical.  Then, enter the number of moles of each element and click Calculate.  Fractional moles (e.g. 2.57) can be entered.  Atomic weights are from CRC (1999)

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Element names and symbols (sorted by name):

 

Actinium

Aluminum

Americium

Antimony

Argon

Arsenic

Astatine

Barium

Berkelium

Beryllium

Bismuth

Bohrium

Boron

Bromine

Cadmium

Calcium

Californium

Carbon

Cerium

Cesium

Chlorine

Chromium

Cobalt

Copper

Curium

Dubnium

Dysprosium

Einsteinium

Erbium

Europium

Fermium

Fluorine

Francium

Gadolinium

Gallium

Germanium

Gold

 

Ac

Al

Am

Sb

Ar

As

At

Ba

Bk

Be

Bi

Bh

B

Br

Cd

Ca

Cf

C

Ce

Cs

Cl

Cr

Co

Cu

Cm

Db

Dy

Es

Er

Eu

Fm

F

Fr

Gd

Ga

Ge

Au

Hafnium

Hassium

Helium

Holmium

Hydrogen

Indium

Iodine

Iridium

Iron

Krypton

Lanthanum

Lawrencium

Lead

Lithium

Lutetium

Magnesium

Manganese

Meitnerium

Mendelevium

Mercury

Molybdenum

Neodymium

Neon

Neptunium

Nickel

Niobium

Nitrogen

Nobelium

Osmium

Oxygen

Palladium

Phosphorous

Platinum

Plutonium

Polonium

Potassium

Hf

Hs

He

Ho

H

In

I

Ir

Fe

Kr

La

Lr

Pb

Li

Lu

Mg

Mn

Mt

Md

Hg

Mo

Nd

Ne

Np

Ni

Nb

N

No

Os

O

Pd

P

Pt

Pu

Po

K

Praseodymium

Promethium

Protactinium

Radium

Radon

Rhenium

Rhodium

Rubidium

Ruthenium

Rutherfordium

Samarium

Scandium

Seaborgium

Selenium

Silicon

Silver

Sodium

Strontium

Sulfur

Tantalum

Technetium

Tellurium

Terbium

Thallium

Thorium

Thulium

Tin

Titanium

Tungsten

Uranium

Vanadium

Xenon

Ytterbium

Yttrium

Zinc

Zirconium

Pr

Pm

Pa

Ra

Rn

Re

Rh

Rb

Ru

Rf

Sm

Sc

Sg

Se

Si

Ag

Na

Sr

S

Ta

Tc

Te

Tb

Tl

Th

Tm

Sn

Ti

W

U

V

Xe

Yb

Y

Zn

Zr

 

Reference                        To top of page
Chemical Rubber Company (CRC).  1999.  CRC Handbook of Chemistry and Physics.   Lide, David R., editor.  79th edition (1998-1999).  CRC Press, Inc.

© 1999 LMNO Engineering, Research, and Software, Ltd.  All rights reserved.

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