Chemistry Forum

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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.
Which crystal dissolves in only hot water and recrystalize on cooling
  • duke656
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Standard Electrode Potential of Fe2+/Fe3+
  • elemis
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Puzzled by aqueous solution terminology
  • dgm
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Photodecomposition of Anode/Cathode
  • citw
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3
Looking for the ENGLISH translation of the JAPANESE manuscript
  • bobey
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Purifiying solution of ammonium nitrate.
  • Fezziwig
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What Does "W" Represent in Acid Number and Softening Point?
  • Rajini
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2
Complicated liquid to vapor conversion problem
  • JamesBone
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3
Discover the Magic of Soap Making: Experiment with Different Solutions at Home
  • Klutch1
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Why are hydroxides of earth alkaline metals are so insoluble in water?
  • jaumzaum
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Is boiling just high vapor pressure?
  • Neek 007
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What chemicals will dissolve biological matter fastest?
  • Intropersona
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Boric acid + Isopropyl alcohol = ?
  • jorjor
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Dehydration in organic molecules
  • soumyajitnag
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Determining the equivalent weight of molecules.
  • avistein
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6
Latent Heat of CAS No. 4719-04-4
  • jaredogden
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3
Electronegativity vs electrochemical series
  • Miffymycat
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How Can the Equivalent Weight of Sulfur be 32 in S2Cl2?
  • avistein
  • · Replies 1 ·
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1
  • Poll Poll
Poll related to handedness between physics, mathematics and chemistry people
  • fluidistic
  • · Replies 43 ·
2
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How Much Gas Can Water Really Hold?
  • Woogies
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Cis or Trans Isomer: John's Question Answered
  • jaumzaum
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1
Is Lead Iodide Precipitate Stable Over Time?
  • Kushal
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3
Question on Le Chatelier's principle
  • sgstudent
  • · Replies 9 ·
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9
Microbial contaminants in water distillation
  • fandangou
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2
Nucleophilicity in substitution reactions
  • swap1996
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2
Why is the mixing of ethanol and water exothermic?
  • sgstudent
  • · Replies 9 ·
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9
How Do I Do High Temperature Steaming?
  • jackal67347
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1
Why does [HA]=[A-] halfway thru a titration?
  • JeweliaHeart
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3
Safety- poly resin , MEKp my boss might be a butthead
  • Hydrangea
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2
How is saturation pressure different than vapor pressure?
  • pa5tabear
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Why doesn't a weak acid/base act as a buffer on its own?
  • sungholee
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4
Why when water is heated it's volume first decreases and then
  • mia5
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2
Understanding Gas Laws: Explaining the Relationship Between Pressure and Volume
  • D4rk
  • · Replies 5 ·
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5
NMR - does rf cause transitions or simply rotate the magn vector?
  • mrquantum
  • · Replies 4 ·
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4
Help with understanding electron sharing in
  • aclark609
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2
What are the consequences of melting plastics from ocean garbage patches?
  • ANarwhal
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3
How can I perform electrolysis on CO2?
  • Curry
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Wetness and why materials change shape
  • kosovo dave
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1
Favored products (really a conceptual) question
  • JeffEvarts
  • · Replies 6 ·
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6
What is the Correct Crystal Lattice Structure?
  • MicahP
  • · Replies 5 ·
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5
Acids & Alkali Metals: What's the Difference?
  • Microbiologist
  • · Replies 13 ·
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13
Test for Ammonia: NaOH & Litmus/HCl
  • enc08
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4
How to use standard reduction potential table
  • TheRedDevil18
  • · Replies 13 ·
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Relation between gibbs free energy and equilibrium constant
  • HARI A
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4
Commercial Scale Desalination via Electrolysis
  • GK12
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3
Difference between types of explosives (contact vs spark/flame)?
  • Ascendant78
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5
What is the adiabatic flame temperature of methane and air combustion?
  • Jaiganesh S
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2
Why Does the Methyl Anion Carry a -1 Charge with Two Unbonded Electrons?
  • lionely
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Methylene Blue's equivalent weight
  • Albacoide
  • · Replies 5 ·
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Add Br2/HV to (S)-1,2-Dibromobutane: Optically Inactive Product
  • dolpho
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Potentials in Pourbaix Diagrams
  • Silvius
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5
How can I find the denaturing/breaking temperature of a molecule?
  • Tanarif
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Does Urine Absorb Atoms from the Air and Create a Vacuum in a Closed Container?
  • paldin
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Comparing Greenhouse Gas Properties: N2O, CO2, and CH4
  • Zashmar
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4
Chemistry/Economics type project
  • Oberon
  • · Replies 3 ·
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3
Equivalence Point: Finding Vtitrant of Titrant Solution
  • Big-Daddy
  • · Replies 10 ·
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Fun with Surface Tension in Space
  • russ_watters
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Dewar Flask: Clinging Noise Inside?
  • +energy
  • · Replies 5 ·
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5
Are Ionized Water Spray Bottles Really Effective for Cleaning?
  • drpizza
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3
Interview Help: Characterization & Metal Structure Behaviour
  • Rajini
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Liquid that changes color back and forth.
  • wsomma
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5
What State Would Oxygen Be at 280 K and 50 Bar?
  • willstaruss22
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Bond energy and activation energy
  • sgstudent
  • · Replies 9 ·
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9
Intermolecular and intramolecular hydrogen bonding
  • Jadaav
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5
Texas Fertilizer Plant Explosion ?
  • Point Conception
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Proof of maximum no. of electrons in a shell
  • -ve
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6
Simple experiment to measure atmospheric Oxygen
  • randi402
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Difference between combustible substance and a supporter of combustion
  • americast
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How does bleach work as a decontaminant?
  • aclark609
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What does aqueous workup mean?
  • JameB
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Question regarding atomic weight percentage, and concentration
  • sandy.bridge
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3
Can Sodium Hydroxide Effectively Capture and Release CO2 from the Atmosphere?
  • Magnethos
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Dissolving iron in HCl, unknown product
  • mishima
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3
The positioning of the thermometer
  • hms.tech
  • · Replies 15 ·
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Silver nitrate stains: what doesn't work
  • Mia Janse
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Why do different elements have different charges?
  • Fifty
  • · Replies 5 ·
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Melting Points as Function of P
  • robousy
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Anhydrous sodium sulfate put in a solution
  • member 392791
  • · Replies 2 ·
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2
Looking for a better understanding of chemical reactions
  • aclark609
  • · Replies 1 ·
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Why is acetic acid a weak acid?
  • cp255
  • · Replies 6 ·
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Principal Quantum Number of the Excited Oxygen atom.
  • acinbat
  • · Replies 3 ·
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Why Do Welded Joints Rust Faster?
  • sci-phy
  • · Replies 3 ·
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Calculating Net Dipole Moment for Water - What Am I Doing Wrong?
  • HelloCthulhu
  • · Replies 4 ·
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4
Prediction of volume of solid-liquid solution
  • mishrashubham
  • · Replies 7 ·
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7
How can I easily remember the complex structures of biomolecules?
  • Ali Inam
  • · Replies 5 ·
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5
When looking at a Chemical, what does this mean 99.9 atom % D
  • nukeman
  • · Replies 10 ·
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Clarification on Liquefaction of Hydrogen Gas
  • Sheissy
  • · Replies 2 ·
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What Is the Correct Symbol for Gibbs' Energy Under Standard Conditions?
  • Big-Daddy
  • · Replies 6 ·
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6
What are some helpful resources for understanding inorganic chemistry concepts?
  • QuantumChemist
  • · Replies 1 ·
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Help building a database of organic compounds used in pharmaceuticals
  • jen0leb
  • · Replies 2 ·
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A question regarding combustion
  • aclark609
  • · Replies 4 ·
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Reactants have a higher enthelpy
  • GeneralOJB
  • · Replies 1 ·
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(molecular spectroscopy)what is the meaning of the symbol
  • einstein1921
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Is the following molecule capable of making hydrogen bonds
  • ihaveabutt
  • · Replies 5 ·
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Understanding atomic mass units (amu) and weight of particles
  • solarcopper
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Barium Borate- beta BBO crystals (what am I looking at?)
  • ChiralWaltz
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Solving H2O Equilibria: Can 5 Variables be Balanced?
  • Big-Daddy
  • · Replies 8 ·
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What are toy gun caps made of?(those red circls that make a lot sound)
  • tsuwal
  • · Replies 7 ·
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Difference between bi and bis as prefixes of a molecule?
  • hivesaeed4
  • · Replies 1 ·
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Fastest oxidizing meterials? that are cheap to deoxidizing?
  • supak111
  • · Replies 2 ·
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