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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.
Mole, Molar mass and Avogadro's number
  • chemistry1
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Bong Angles of Cyclic Hydrocarbons
  • QuantumChemist
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Understanding the Naming Conventions of Epoxides: R and S Omission Explained
  • member 392791
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Is this protein powder mix questionable?
  • clurt
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Observe Pb02 Diffusion into Organic Layer: Inert Effect for Lead
  • ramsharmjarm
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Hydrogen bond vs dipole-dipole?
  • jaydnul
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What determines the abundance of elements?
  • martix
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Electronic configuration for ions
  • Log
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Volume Contraction (Water & Methanol Mixture)
  • miniradman
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Electrode Potentials and Redox reactions
  • hms.tech
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Understanding Resonance Structures: Tips and Guidelines
  • member 392791
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Hydrogen Cations: The Wandering Protons of Chemistry
  • jduster
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Gibbs Free Energy of Formation: 1°C or 25°C? (And other exciting questions.)
  • Danny.Boy
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Oxidation and reduction problems
  • sgstudent
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Why do we have sigma and pi bonds?
  • member 392791
  • · Replies 9 ·
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9
How Can I Calculate the Heat of Reaction Using Hess' Law and a Calorimeter?
  • Greyt
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Breaking the surface tension of a droplet within a tube
  • Farnet
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What is a polymer and when a substance is not a polymer?
  • fisico30
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Question about which oxygen acts as a nucleophile
  • JHUK
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Why does fructose reduce Fehling's solution?
  • Hysteria X
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SA + SB always give pH= 7 even if concentration of SA is a lot bigger than SB?
  • cmkc109
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Calculating Ammonia/Water Ratio for pH Adjustment
  • FC Copenbadly
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What Is the Light That Activates When Shaken?
  • whyonlyme
  • · Replies 10 ·
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Iron(II) oxide vs iron(III) oxide in a thermite reaction
  • lzrlightshow
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Buy Alum Sulfate for 8000 Gal 48% Solution
  • obrien040362
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4
Guidelines for reporting raman spectral data?
  • uby
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Enthelpy of the decomposition reaction of N2H4 gas
  • lizgore94
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IR Spectra: Why is CO2 a doublet at 2350cm-1?
  • nbd
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What can I buy as an alternative to lab filters?
  • mishima
  • · Replies 7 ·
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Reactivity of solutions with the same anion
  • aekotra
  • · Replies 5 ·
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IR Spectra: N-O Nitro group: Why two peaks?
  • nbd
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Homogenous Fluorescent Solution
  • corvus corax
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Potato battery, how does it work?
  • christian0710
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Why do so many polyatomic ions contain oxygen?
  • mishima
  • · Replies 6 ·
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6
Why Is Magnesium Precipitated from Sea Water Using Calcium Hydroxide?
  • jaumzaum
  • · Replies 13 ·
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Electrolytic Reactions: Anode vs Cathode
  • shivaniits
  • · Replies 13 ·
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Q about current article: On-demand Hydrogen Generation : ACS Nano Letters
  • pdxjjb
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The Ultimate Battery: Overcoming Infernal Challenges
  • Astronuc
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Solve Gas Laws Confusion - P, V, T & n
  • ghostanime2001
  • · Replies 6 ·
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6
Many question about water(condensation evaporation)
  • kevin_tee
  • · Replies 6 ·
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Calculating Surface Oxygen Groups in Boehm Titration Procedure?
  • FaNgS
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Separate water vapor from atmospheric air
  • Franco Malgari
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Boiling Ethanol & Using a kitchen exhaust hood instead of a fume hood
  • Syntax__Error
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3
Why Does the Helium Wavefunction Require 9 Coordinates Instead of 6?
  • sidnake
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Is Brass Magnetic: Debunking the Myth
  • iknownth
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How to make a gel for/of a particular solution?
  • Rhydo
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Confused about oxidation number
  • calios
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Absolute Alcohol Vs. Absolute alcohol
  • Sam Morse
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How to dissolve a copper nail completely ? important
  • jamjoom90
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Marine flares: disposal thereof.
  • sophiecentaur
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Centrosymmetricity of unit cell or the pattern.?
  • A Dhingra
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Can a 0.1M Buffer Solution Be Prepared Using Henderson-Hasselbalch Equation?
  • PhiPhenomenon
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Mean Free Path and Reactions (Atmospheric Chemistry)
  • sidnake
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Is Farady's law applicable to electrochemical cell
  • u_know_who
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What's Going On When Iron Electrodes Are Electrolyzed in Sodium Hydroxide?
  • tmiddlet
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Mass loss in common chemical reactions?
  • BarnRat
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Valency of Copper: Electronic Configuration of Cu
  • Sam Morse
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Why aren't there famous chemists/mathematicians in the public?
  • member 392791
  • · Replies 55 ·
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Chromium Ions in Water: Balancing Cr3++ and OH- to Form Cr(OH)3
  • Dalek1099
  • · Replies 4 ·
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What physical experiment would tell you how many electrons an atom has
  • JaredPM
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Splitting Hydrogen into Atomic Molecules Using an Electric Arc and UV Lamp
  • Franco Malgari
  • · Replies 5 ·
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Link died message in gaussian03
  • ydurust
  • · Replies 1 ·
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Started an experiment , triboluminescence
  • fluidistic
  • · Replies 6 ·
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6
How many electrons can the outermost shell hold? 32 or 8?
  • ihaveabutt
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How does ionization energy affect reactivity in elements?
  • NewChemTeache
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Why is fluorine more electronegative than sodium?
  • member 392791
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Chemistry of traditional soapmaking
  • onomatomanic
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A student I am tutoring has asked me to help him formulate a synthesis
  • mike.bayville
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How come Nacl is not poisonous?
  • Naveen345
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Comparing the Acidity of H2S and H2O: The Role of Hydrogen Bonding
  • Vineeth T
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Cloud Chamber Solvents: Identifying Mystery Liquid
  • Thundagere
  • · Replies 4 ·
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Sodium bicarb AND citric acid powder?
  • LT72884
  • · Replies 7 ·
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Is Dyeing a Dog with Kool Aid Safe?
  • Yayfordoritos
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What Determines a Substance's Classification as Crystalline, Amorphous, or Both?
  • dido28
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[Ma4b2] Isomerism in coordinate complexes cofusion
  • nishantve1
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Question about enthelpy of reaction
  • gokuls
  • · Replies 20 ·
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Chemistry curriculum too heavily bio focused?
  • chill_factor
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Figuring Out Valence: Noble Gases & Atom Valence
  • Ben.meyer
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Choice of pressure when using ideal gas equation
  • jasoncurious
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Production of large volumes of duterated hydrocarbons?
  • Hologram0110
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Endothermic Reactions: Activation Energy & Heat Transfer
  • Celluhh
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Water's role in biological catalysis?
  • hivesaeed4
  • · Replies 3 ·
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What are the chemical names of these two compounds?
  • hivesaeed4
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Why is the salt solubility curve flat?
  • MadViolinist
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I'm making ham stew and I sprinkle salt on top of the liquid. Will is disperse?
  • pa5tabear
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How Can Polymer Swelling Be Controlled?
  • hoger
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Boiling point of Cyclohexene and 2-methylbut-1-ene
  • disneychannel
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What are some alternatives to lubricant oil for industrial testing purposes?
  • giusepperossi
  • · Replies 15 ·
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Aftermath of polymerization of EtOH
  • Weissritter
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Blending thermosensitive polymers with ph sensitive polymers for drug delivery
  • issac newton
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Electrophoretic Mobility of Hydrophobic/Charged Particles in Saline Solutions
  • toni_2374
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Regards to chemicals/drugs: How do delivery systems work?
  • nukeman
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Electromagnetizm -> Radon ionization -> Temperature increase?
  • Ardit
  • · Replies 12 ·
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Exceptions to the Aufbau Principle
  • smaan
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What is the AcHN Structure in Amidomalonate?
  • destroyer130
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Effect of a Lindlar catalyst on an alkene?
  • rblake92
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Where can I find a molecule layout for calcium perchlorate tetrahydrate on Mars?
  • zincshow
  • · Replies 7 ·
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Does the temperature of 2 samples need to be the same?
  • AHVincent
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Modify crystallization process by electromagnetic fields?
  • steffen ecca
  • · Replies 1 ·
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What is the Default Equilibrium Constant for Chemical Reactions?
  • Nikitin
  • · Replies 2 ·
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2