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Chemistry Forum

Join the expert discussion on chemistry. Chemistry is the study of the nature, properties, and composition of matter. Biochemistry, Organic, Inorganic, Analytical are topics that may be discussed.

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Time taken for two substances to reach equilibrium (equation?)

Apr 18, 2011 · Replies 2 · Apr 18, 2011

Replies: 2

Views: 9K

Does Magnesium Oxidation Affect Water Acidity?

Apr 17, 2011 · Replies 11 · Apr 18, 2011

Replies: 11

Views: 5K

Metal Ions and Colors: Find Yours!

Apr 18, 2011 · Replies 2 · Apr 18, 2011

Replies: 2

Views: 3K

From hydrochloric acid to hydrogen chloride

Apr 17, 2011 · Replies 1 · Apr 17, 2011

Replies: 1

Views: 3K

Collision Theory: Deriving Rate Equation Confusion

Apr 17, 2011 · Replies 3 · Apr 17, 2011

Replies: 3

Views: 3K

Changing temperature of water to alter PH levels

Apr 17, 2011 · Replies 4 · Apr 17, 2011

Replies: 4

Views: 4K

Chemistry Project Ideas for 12th Grade

Apr 15, 2011 · Replies 5 · Apr 17, 2011

Replies: 5

Views: 4K

Borek: Understand Zinc Carbon Battery Electrolyte Solution

Apr 16, 2011 · Replies 1 · Apr 16, 2011

Replies: 1

Views: 2K

What is the molecular weight of Pluronic F-127?

Apr 14, 2011 · Replies 1 · Apr 16, 2011

Replies: 1

Views: 2K

Dissolving solid copper chloride

Apr 15, 2011 · Replies 1 · Apr 15, 2011

Replies: 1

Views: 5K

Degradation of polydimethylsiloxane Si3(CH3)6O3?

Apr 13, 2011 · Replies 4 · Apr 15, 2011

Replies: 4

Views: 5K

The equilibrium constant and solids

Apr 14, 2011 · Replies 5 · Apr 15, 2011

Replies: 5

Views: 4K

Why do bubbles form when vapor pressure = external pressure?

Apr 10, 2011 · Replies 1 · Apr 15, 2011

Replies: 1

Views: 5K

Phosphor Powder for solar cells

Apr 13, 2011 · Replies 1 · Apr 13, 2011

Replies: 1

Views: 4K

What is This? A Guide to Understanding the Unknown

Apr 13, 2011 · Replies 1 · Apr 13, 2011

Replies: 1

Views: 2K

The Mysteries of the Metaperiodic Table

Apr 10, 2011 · Replies 5 · Apr 13, 2011

Replies: 5

Views: 2K

Enantiomer / Diastereomer Chemical and Physical Properties

Apr 6, 2011 · Replies 3 · Apr 12, 2011

Replies: 3

Views: 23K

How Does Bond Formation Release Heat?

Apr 11, 2011 · Replies 1 · Apr 11, 2011

Replies: 1

Views: 11K

Forward vs Reverse Reaction (both endo/exo thermic)

Apr 9, 2011 · Replies 3 · Apr 10, 2011

Replies: 3

Views: 12K

Weird: number of moles of NaOH in 20 ml of 1M NaOH

Apr 8, 2011 · Replies 4 · Apr 10, 2011

Replies: 4

Views: 30K

What vessels to use with hydrochloric acid, sodium hydroxide, and sulfuric acid?

Apr 9, 2011 · Replies 1 · Apr 9, 2011

Replies: 1

Views: 4K

Leaked Maglite battery destroys the thread?

Mar 30, 2011 · Replies 13 · Apr 9, 2011

Replies: 13

Views: 4K

Detection of hydrogen peroxide in water

Mar 17, 2011 · Replies 4 · Apr 7, 2011

Replies: 4

Views: 6K

Exploring the Packing Efficiency of Trans and Cis Isomers in Crystal Structures

Apr 5, 2011 · Replies 2 · Apr 6, 2011

Replies: 2

Views: 3K

What causes pH to decrease during fermentation?

Apr 5, 2011 · Replies 6 · Apr 6, 2011

Replies: 6

Views: 14K

Which is more stable Fe2+ or Fe3+?

Apr 4, 2011 · Replies 1 · Apr 5, 2011

Replies: 1

Views: 9K

What are the rules for drawing molecular diagrams?

Apr 4, 2011 · Replies 3 · Apr 5, 2011

Replies: 3

Views: 3K

What do the hexagonal shapes mean in chemistry?

Apr 2, 2011 · Replies 8 · Apr 4, 2011

Replies: 8

Views: 110K

To do with reactivity, I think

Apr 2, 2011 · Replies 1 · Apr 3, 2011

Replies: 1

Views: 2K

What Factors Affect the Neucleophilicity and Basicity Order of I- Br- Cl- F-?

Apr 2, 2011 · Replies 1 · Apr 3, 2011

Replies: 1

Views: 3K

Creating an Endothermic Reaction Without Ammonium Nitrate

Mar 29, 2011 · Replies 11 · Apr 2, 2011

Replies: 11

Views: 10K

Qustion about leaving groups and bases

Apr 1, 2011 · Replies 1 · Apr 2, 2011

Replies: 1

Views: 2K

Linus Pauling's "General Chemistry" Book- Is it Up to Date?

Feb 26, 2008 · Replies 7 · Apr 1, 2011

Replies: 7

Views: 12K

The hybridization of P in phosphate

Mar 31, 2011 · Replies 3 · Apr 1, 2011

Replies: 3

Views: 22K

What is the difference between internal energy and enthalpy?

Oct 18, 2010 · Replies 5 · Mar 31, 2011

Replies: 5

Views: 9K

'diels alder' like reaction with nonconjugated dienes

Mar 29, 2011 · Replies 3 · Mar 31, 2011

Replies: 3

Views: 3K

What will sugar dissolve in besides water?

Mar 25, 2011 · Replies 6 · Mar 30, 2011

Replies: 6

Views: 23K

How can H-NMR graph peaks be used to determine enol-keto ratio?

Nov 11, 2004 · Replies 7 · Mar 29, 2011

Replies: 7

Views: 17K

How Do You Balance Chemical Equations?

Mar 28, 2011 · Replies 1 · Mar 29, 2011

Replies: 1

Views: 3K

H2 Gas: Stability and Reactivity on Earth's Surface

Mar 28, 2011 · Replies 3 · Mar 28, 2011

Replies: 3

Views: 6K

Creating a 'Heat Wave' Look Without Mixing

Feb 16, 2011 · Replies 30 · Mar 28, 2011

2

Replies: 30

Views: 16K

SERS Substrates for Adsorbing Biological Materials

Mar 25, 2011 · Replies 1 · Mar 28, 2011

Replies: 1

Views: 3K

What Are the Best Practices for Testing Liquid Sodium Wicking in Sealed Tubes?

Mar 15, 2011 · Replies 9 · Mar 27, 2011

Replies: 9

Views: 5K

Solvents for Grignard Synthesis?

Mar 24, 2011 · Replies 2 · Mar 27, 2011

Replies: 2

Views: 5K

Disconnect between Lennard-Jones and Heat of Vaporization

Mar 25, 2011 · Replies 2 · Mar 27, 2011

Replies: 2

Views: 4K

Investigating Mysterious Salty Taste in Water

Mar 13, 2011 · Replies 8 · Mar 26, 2011

Replies: 8

Views: 4K

What happens when Ca is added to water?

Mar 25, 2011 · Replies 1 · Mar 26, 2011

Replies: 1

Views: 4K

Understanding Acid Solutions: How to Reach 10^-14

Mar 25, 2011 · Replies 1 · Mar 25, 2011

Replies: 1

Views: 5K

SN2 & SN1 Reactions: Solvent Effects Explained

Mar 23, 2011 · Replies 5 · Mar 25, 2011

Replies: 5

Views: 10K

How hot is the fire caused by burning Vegetable Oil?

Mar 24, 2011 · Replies 2 · Mar 25, 2011

Replies: 2

Views: 7K

Electrochemical cells: Is gibbs free energy dependent upon concentration?

Mar 24, 2011 · Replies 5 · Mar 24, 2011

Replies: 5

Views: 8K

Do chemists have an abonormaly high rate of cancer?

Aug 10, 2007 · Replies 15 · Mar 24, 2011

Replies: 15

Views: 26K

Understanding the Difference Between NaF and Sulfate/Carbonate in Water

Mar 23, 2011 · Replies 2 · Mar 24, 2011

Replies: 2

Views: 3K

Physical Chemistry vs Statistical Mechanics notation

Mar 21, 2011 · Replies 8 · Mar 23, 2011

Replies: 8

Views: 6K

Interesting Static Eletricity Question

Mar 22, 2011 · Replies 1 · Mar 23, 2011

Replies: 1

Views: 2K

Ordinary chlorine vs hydrogen peroxide as a bleach

Mar 15, 2011 · Replies 22 · Mar 22, 2011

Replies: 22

Views: 24K

Project on Alcohols: Chemistry & Info

Mar 20, 2011 · Replies 4 · Mar 22, 2011

Replies: 4

Views: 3K

Sulphur Dioxide (SO2) Geometry & Hybridization

Nov 30, 2010 · Replies 20 · Mar 22, 2011

Replies: 20

Views: 24K

SF4 has Exactly 5 Electron Pairs Around Central Atom

Mar 20, 2011 · Replies 1 · Mar 21, 2011

Replies: 1

Views: 3K

Hybridisation of SO 2 and SeO 2

Mar 20, 2011 · Replies 3 · Mar 21, 2011

Replies: 3

Views: 9K

How to determine which molecule has the highest melting point?

Mar 20, 2011 · Replies 1 · Mar 20, 2011

Replies: 1

Views: 11K

What are some interesting ~5 minute chemistry demonstrations?

Feb 28, 2011 · Replies 5 · Mar 19, 2011

Replies: 5

Views: 8K

Can 18M Hydrochloric Acid Cause Permanent Skin Damage?

Mar 17, 2011 · Replies 5 · Mar 18, 2011

Replies: 5

Views: 6K

What Should I Major in to Become a Research Scientist: Chemistry or Physics?

Mar 16, 2011 · Replies 1 · Mar 17, 2011

Replies: 1

Views: 10K

What Is the Best High-Density Liquid That's Cheap and Safe at Room Temperature?

Mar 12, 2011 · Replies 29 · Mar 17, 2011

Replies: 29

Views: 54K

Organic II Q's - EAS, sulfur as protecting group, fischer esterification

Mar 15, 2011 · Replies 2 · Mar 15, 2011

Replies: 2

Views: 4K

How much energy is stored in borax element?

Mar 14, 2011 · Replies 2 · Mar 15, 2011

Replies: 2

Views: 4K

Amphiprotic/Amphoteric Nature of HSO4- & H2PO4 - ChemistryHelp.net

Mar 14, 2011 · Replies 2 · Mar 14, 2011

Replies: 2

Views: 14K

Carbonyl Sulfide Removal By MEA‏

Mar 14, 2011 · Replies 1 · Mar 14, 2011

Replies: 1

Views: 3K

Why Is Dry Ice's Energy Change Considered Internal Rather Than Enthalpy?

Mar 9, 2011 · Replies 8 · Mar 14, 2011

Replies: 8

Views: 6K

Complete Dissociation: Understand Strong Acids & Bases

Mar 12, 2011 · Replies 11 · Mar 13, 2011

Replies: 11

Views: 33K

Unraveling the Mystery of NaCl's Low Solubility Curve

Mar 5, 2011 · Replies 7 · Mar 12, 2011

Replies: 7

Views: 6K

Does Adding HCl Change the pH of a CH3COOH/CH3COO Buffer?

Mar 12, 2011 · Replies 1 · Mar 12, 2011

Replies: 1

Views: 4K

Calc Enthalpy of Formation N2O5(g) from Data

Mar 23, 2005 · Replies 3 · Mar 12, 2011

Replies: 3

Views: 32K

Elementary question of binding energy

Mar 11, 2011 · Replies 1 · Mar 12, 2011

Replies: 1

Views: 2K

Physical Chemistry Q: Do conduction band electrons affect chemical properties?

Mar 8, 2011 · Replies 6 · Mar 11, 2011

Replies: 6

Views: 4K

When propane gas is bubbled into bromine water, no colour changes, why?

Mar 10, 2011 · Replies 7 · Mar 11, 2011

Replies: 7

Views: 11K

Equilibrium constant rules help.

Mar 8, 2011 · Replies 1 · Mar 9, 2011

Replies: 1

Views: 3K

Certain compounds were responsible for different tastes

Mar 7, 2011 · Replies 10 · Mar 9, 2011

Replies: 10

Views: 8K

How does the saponification process actually create soap?

Mar 7, 2011 · Replies 1 · Mar 8, 2011

Replies: 1

Views: 3K

Searching for Outgassing Rate of Fused Silica (SiO2)

Aug 25, 2009 · Replies 3 · Mar 5, 2011

Replies: 3

Views: 9K

Toxic Compounds: Solids and Liquids

Mar 4, 2011 · Replies 9 · Mar 5, 2011

Replies: 9

Views: 3K

Mass spectrometry - How can you find the mass of the compound?

Mar 4, 2011 · Replies 2 · Mar 5, 2011

Replies: 2

Views: 5K

Which Method is Better for Charging Batteries: Economically & Scientifically?

Dec 23, 2010 · Replies 19 · Mar 4, 2011

Replies: 19

Views: 6K

Water Dissociation: H+ & OH- Ions Upon Ionic Compound Addition

Feb 28, 2011 · Replies 4 · Mar 4, 2011

Replies: 4

Views: 6K

Electrophilic addition of alkenes

Mar 2, 2011 · Replies 5 · Mar 4, 2011

Replies: 5

Views: 4K

How does the ideal gas law work?

Mar 3, 2011 · Replies 1 · Mar 3, 2011

Replies: 1

Views: 5K

So can you add elements to illegal drugs to make them technically different?

Mar 1, 2011 · Replies 6 · Mar 3, 2011

Replies: 6

Views: 5K

Brine Electrolysis: Why Is the Solution Turning Yellowish?

Feb 27, 2011 · Replies 17 · Mar 2, 2011

Replies: 17

Views: 11K

Implications of infinity on positional entropy?

Feb 28, 2011 · Replies 2 · Mar 2, 2011

Replies: 2

Views: 2K

Gaussian 09 .out file format specification (and freqchk)

Feb 26, 2011 · Replies 4 · Feb 28, 2011

Replies: 4

Views: 8K

Why do the PE of atoms decrease when they form bonds

Feb 27, 2011 · Replies 1 · Feb 28, 2011

Replies: 1

Views: 7K

Maximizing Oil-in-Water Separation: Tips for Efficient Drying Methods

Feb 25, 2011 · Replies 2 · Feb 28, 2011

Replies: 2

Views: 4K

Where Can I Find a Customizable Text-Based Quiz Program for Studying?

Feb 27, 2011 · Replies 3 · Feb 28, 2011

Replies: 3

Views: 3K

Does arsenate inhibit glyceraldehyde 3-phosphate dehydrogenase?

Feb 28, 2011 · Replies 1 · Feb 28, 2011

Replies: 1

Views: 9K

Calculating Limiting Reactant & Theoretical Yield of NaCl2

Feb 27, 2011 · Replies 1 · Feb 28, 2011

Replies: 1

Views: 3K

Wine Fermentation Heat Generation

Feb 24, 2011 · Replies 3 · Feb 26, 2011

Replies: 3

Views: 8K

Confused About Isotherms: Graph of Methane Volume vs Pressure

Feb 25, 2011 · Replies 7 · Feb 26, 2011

Replies: 7

Views: 3K

Normalization coefficient of sp2 hybrid orbital

Feb 24, 2011 · Replies 1 · Feb 25, 2011

Replies: 1

Views: 8K

Can the concept of hybridization be applied to what we consider ionic,

Feb 18, 2011 · Replies 6 · Feb 25, 2011

Replies: 6

Views: 5K

Chemistry

Welcome to the Chemistry forum!

Chemistry is the scientific study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. It plays a central role in understanding the building blocks of the universe, encompassing the study of atoms, molecules, elements, and compounds.

Chemists investigate the interactions and forces between particles at the atomic and molecular levels, contributing to our understanding of various natural phenomena. The field is divided into branches such as organic chemistry, inorganic chemistry, physical chemistry, and biochemistry, each focusing on specific aspects of chemical systems.

Chemistry is not only a foundational science but also a driving force behind technological advancements, materials development, pharmaceuticals, and numerous industrial applications.

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