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.
2 ways to calculate net standard reduction potential
  • TT0
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Percentage of hydrocarbons in living organism
  • Stephanus
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This question regarding quantum number
  • TT0
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Calculating Ksp vs Keq: Are There Differences?
  • TT0
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Understanding Hybridization in Chemistry: Fact or Fiction?
  • Karan Punjabi
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3
Safety of a Small Scale Electrolysis Experiment
  • Henry T
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Calculate dilution to create new specific gravity
  • Rosemary Johnson
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Why wouldn't half-reactions in a battery just go on?
  • avorobey
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3
Electrochemistry question: n value in ΔG° =-nFE°cell
  • rockinrack
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Can Entropy Decrease in Endothermic Reactions?
  • TT0
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Advanced iron oxide production questions
  • Eriequiet
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Spectrophotometry of chromate-dichromate equilibrium
  • 24forChromium
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Where Can I Find Molar Absorptivity Data for Chromate and Dichromate Ions?
  • 24forChromium
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More moles of gas per moles of material reaction
  • TRB8985
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3
What is Nascent Oxygen?
  • Raghav Gupta
  • · Replies 14 ·
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What are the dangers and ways to control danger of chromate
  • 24forChromium
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Effects of Crushing a Solid on Equilibrium Position
  • RoboNerd
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9
How does a mist spray bottle affect scent molecules?
  • larry909
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Needing help identifying a salt.
  • RoyceB
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What Are the Key Differences Between Antioxidants and Reducing Agents?
  • Stephanus
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Contradiction of Gibbs adsoprtion?
  • bobey
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2
Nitrogen Bond Formation: 2 Electrons in 2p Orbital
  • Karan Punjabi
  • · Replies 7 ·
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Transmittance of Cyclohexane for IR Radiation Through Quartz Viewport
  • Jhon Paul
  • · Replies 5 ·
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5
Understanding ORP in Water with NaCl
  • Stephanus
  • · Replies 1 ·
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Understand Chemistry Bond Symbol for Antioxidants and Free Radicals
  • Stephanus
  • · Replies 7 ·
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How can phase transitions be physical equilibriums?
  • fangrz
  • · Replies 21 ·
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Can Schrodinger's Equation predict steric clashes
  • Ben Rodolico
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7th period of the periodic table now complete
  • DrClaude
  • · Replies 12 ·
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12
Do zwitterions respond to electric fields?
  • rpayne88
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Electron shell, Oxidation number
  • Stephanus
  • · Replies 1 ·
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Naturally occurring elements yet to be discovered?
  • GiantSheeps
  • · Replies 3 ·
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3
Heat: Microscope - Seeing Matter React
  • CollinsArg
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3
What Can You Do with Wolfram Alpha in Chemistry?
  • Stephanus
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Can Reverse Polarity Charging Convert Old Lead Acid Batteries into Pure Pb?
  • Ayman Saif
  • · Replies 4 ·
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4
Understanding pH - FAQs for the PF Forum
  • Stephanus
  • · Replies 6 ·
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6
What Are the Health Implications of Hydroxide Radicals in Alkaline Water?
  • Stephanus
  • · Replies 3 ·
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V required for electroplating Cu on Fe
  • sach963
  • · Replies 3 ·
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3
Is Hydrogen Ion a Powerful Antioxidant?
  • Stephanus
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4
How Is Activation Energy Determined for Urea Hydrolysis with Urease?
  • Praestrigiator
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Gel pen refill ink is what ester?
  • proshenn
  • · Replies 5 ·
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Whether to clear carbon gasoline additive do?
  • proshenn
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Is Methylene Chloride dangerous?
  • tankarish
  • · Replies 8 ·
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Why does alanine salt have a pH of 6.113?
  • fangrz
  • · Replies 10 ·
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Calculating and Mixing NiAc and ZnAc Solutions for Molar Proportion
  • bilalarif
  • · Replies 5 ·
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Controlling pH of solution without changing its conductivity
  • Urmi Roy
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3
Science Fair Project: Natural Water vs Bottled
  • Experiment22
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Should Natural Cosmetics Professionals Study Chemistry or Organic Chemistry?
  • francisfrances
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Electronegativity and electron affinity?
  • goggles31
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How is enthelpy different than heat?
  • MZ1K
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2
Does a Modern Car Exhaust System Impact a Carbon Monoxide Detector's Accuracy?
  • jlcd
  • · Replies 12 ·
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How is PbBr2 an ionic compound?
  • Ben Sanders
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2
Is Diphenol Aromatic or Anti-Aromatic?
  • Yatin
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Exothermic reaction of zeolite and water
  • ErikL
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Reboiling Water: Harmful Effects and Chemical Changes
  • kamanijayantha1
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Identifying Illegal Fuel in My Country: Tips for Detecting Fuel-Kerosene Mixture
  • kjfunh
  • · Replies 21 ·
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Acetone in water influence its enthelpy of vaporization
  • ejnovek
  • · Replies 4 ·
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4
Engaging experiment involving chromate and acidity?
  • 24forChromium
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Carbanion Stability: Why is s Character Important?
  • Yatin
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Why does the mass stay the same during combustion?
  • saranya_sarah
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Partition coefficient of chlorpromazine in DMSO & pentane
  • Schwarzschild90
  • · Replies 24 ·
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Phase changes, change of entropy is temperature independent
  • Tala97
  • · Replies 21 ·
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What are some liquids that can give up valence electrons when heated?
  • Dlhill13
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Creating free superoxide in air
  • genekuli
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Measuring pH on metallic planar surface
  • Patrick Rota
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What is the relationship between relative mass and molar mass?
  • Lim Y K
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Volume of 1 Mole O2 & CO2 at Same Temperature & Pressure
  • Stephanus
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What is the Best Method for Producing Iron Oxide Nanoparticles?
  • Rajini
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What's the Secret Behind This Riddle?
  • AMan24
  • · Replies 15 ·
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Possibility and detection of this chemical equilibrium
  • 24forChromium
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Solvent for cinnamaldehyde extraction?
  • mishima
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APCP Autoignition: Pressure Deflagration Start
  • Praestrigiator
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Can "mole" unit only be integer values?
  • pyroknife
  • · Replies 15 ·
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Constant Volume Calorimetry - Why does (ΔnRT)=(Δn)RT
  • blithe285
  • · Replies 10 ·
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Half equations for molten hydroxide electrolysis
  • Dukon
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Why cations migrate toward cathode?
  • terryds
  • · Replies 13 ·
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Fading Marker Ink: What's Happening?
  • Lim Y K
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Can We Create an Endless Loop of Energy with Water?
  • Jakecp
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Relating excited state molecular emission to chemical reaction
  • rwooduk
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Mechanism of tautomerisation in AgCN and AgNC?
  • Ansuman
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Is Electrostatic Ion Separation Possible for Industrial Element Separation?
  • 24forChromium
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Heterolytic and Homolytic Cleavage
  • andyrk
  • · Replies 1 ·
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Biodiesel from Used Cooking Oil: Is the Pollution Lower?
  • Stephanus
  • · Replies 3 ·
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Not understanding Fischer projections
  • ppppparker
  • · Replies 4 ·
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What determines the colour of chromium compounds?
  • 24forChromium
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Resist adhesion to Borosilicate glass for BOE etching
  • Yinxiao Li
  • · Replies 1 ·
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Are Noble Gas Compounds Possible?
  • Stephanus
  • · Replies 1 ·
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Who was the great scientist killed in World War 1?
  • bluemoonKY
  • · Replies 10 ·
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Organic Chemistry Nucleophile Reactivity Rate
  • erisedk
  • · Replies 3 ·
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Resonance structures of aryl or vinyl carbocations
  • sgstudent
  • · Replies 4 ·
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Gaging Time with Chemical Clocks: A Crazy Idea?
  • ljfe
  • · Replies 2 ·
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Peptide Bond Dissociation Temperaure
  • rpayne88
  • · Replies 2 ·
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Freezing/Melting of water and gibbs free energy
  • tonyjk
  • · Replies 15 ·
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Can helium prevent ozone formation in electron-plasma chemistry?
  • genekuli
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Can Boric Acid or Detergents Increase the Density of Silicone Oil?
  • AqibH
  • · Replies 1 ·
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Plant Freezing at -20C: No Power & 5700 GPM
  • Jay cameron
  • · Replies 3 ·
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What is the science behind desulfation of batteries and how does it work?
  • cliffie D
  • · Replies 3 ·
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Book says threonine has chiral center in its sidechain? How?
  • ppppparker
  • · Replies 1 ·
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Under ideal conditions could there be thousands of elements?
  • AMan24
  • · Replies 6 ·
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Recovering energy from plastics
  • wolram
  • · Replies 8 ·
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How Do Electrons Form a Bond in Covalent Bonding Despite Their Mutual Repulsion?
  • bronx
  • · Replies 5 ·
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5