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.
Heat of combustión of a mixture of two substances?
  • Saharka
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Which Among These Species Does Not Exhibit Resonance?
  • Vavi Ask
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7
What is the best DIY mix for cleaning with an ultrasonic cleaner?
  • john101
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14
Potassium iodide and thyroid protection
  • Andrew1949
  • · Replies 12 ·
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12
Difference between absorption spectroscopy and extinction
  • nadaben
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1
News Official new names of superheavy elements
  • DennisN
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2
Need to test Tactile user-experience of different Materials
  • ScrollPortals
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4
Half-Reactions in Zn + HCl Reaction
  • Kaneki123
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3
Line Spectra correct intepretation
  • fog37
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2
Determining the Ionic Radii of group 2 metal chlorides?
  • Jefffff
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Is the covalent character of sodium chloride affected by its polarity?
  • Tiiba
  • · Replies 14 ·
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14
Why do strong acids dissociate completely in water?
  • aleksbooker
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15
Polyolefin Ion Membranes in Electrochemical Cells
  • mishima
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2
Synthesis with a boiling toluene
  • nadaben
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1
Why does saltwater increase rate of corrosion?
  • Absentee
  • · Replies 9 ·
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9
Anyone work with liquid flow, tubing size flow dependence
  • rwooduk
  • · Replies 3 ·
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3
How Does ΔH Change with Temperature for Water to Vapor Conversion?
  • Conductivity
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1
Chemical Bonds - various questions
  • ForTheGreater
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3
Does hybridisation only occur with Carbon?
  • Roroy
  • · Replies 13 ·
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13
What additional courses should I take as a chem major?
  • theeightman
  • · Replies 5 ·
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5
What is the Lewis structure of C3H5+ ion?
  • ArjenB
  • · Replies 5 ·
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5
How can i stick metal nanoparticles on glass?
  • nadaben
  • · Replies 3 ·
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3
Undergrad Struggles: Naming Compounds
  • SpinzTronics
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2
Naming a Compound: Understanding C(CH3)3 and Its Naming Conventions
  • jinhuit95
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How volatile impurity affects boiling point of a liquid?
  • Brwahussen
  • · Replies 5 ·
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5
How is it possible for v/v units to exceed 100%?
  • ReidMerrill
  • · Replies 6 ·
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6
Fe2O3 Thermal Decomposition Question
  • BH1988
  • · Replies 1 ·
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1
Understanding the Distinctions Between MOFs, COFs, and POPs: A Brief Overview
  • KarolinaPL
  • · Replies 2 ·
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2
My vitamin C titration with iodate turned red. Help
  • Mingrulz34
  • · Replies 3 ·
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3
Molecules/nm²? what does it mean
  • nadaben
  • · Replies 6 ·
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6
Is Ammonia absorption in water exothermic?
  • pranj5
  • · Replies 9 ·
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9
Help with understanding equilibrium & temperature
  • AliSkully
  • · Replies 1 ·
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1
Negative ions affecting galvanic cell voltage
  • Biker
  • · Replies 16 ·
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16
How Do I Solve Double Displacement Reactions for Chemistry Homework?
  • gasstationqueen
  • · Replies 5 ·
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5
Why doesn't boiling water exceed 100 deg C?
  • cashflow
  • · Replies 15 ·
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15
How can we efficiently dry metallic nanoparticles
  • nadaben
  • · Replies 12 ·
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12
How can grass be turned into fertilizer after digestion?
  • matt the rat
  • · Replies 12 ·
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12
Why is it that cocaine crystals aren't transparent
  • Siber
  • · Replies 8 ·
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8
Effect of particle size on boiling point in solution
  • albertrichardf
  • · Replies 6 ·
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6
Is a hydronium (H3O+) less clear than a water pool (H2O)?
  • jackparker5
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Why Lutetium & Lawrencium always been in f-orbital group?
  • swampwiz
  • · Replies 1 ·
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1
Can Solids Really Burn Underwater?
  • UMath1
  • · Replies 9 ·
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9
Discover the Reason Behind Adding 32 to the Formula for Converting °C to °F
  • parshyaa
  • · Replies 11 ·
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11
Solutes with very high melting points
  • rppearso
  • · Replies 4 ·
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4
Solubility-Pressure graph of Ammonia
  • pranj5
  • · Replies 4 ·
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4
MeOH:H2O Freezing Point Depression Calculation Issue
  • Voltux
  • · Replies 1 ·
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1
Shouldn't Carbon-14 concentration be the same everywhere?
  • Nishantkumar19
  • · Replies 3 ·
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3
Electron transfer and oxidation state
  • Tiiba
  • · Replies 11 ·
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11
Quantifying P or PO4 in an unknown solid
  • Baho Ilok
  • · Replies 3 ·
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3
Terminology, pressure of gas in fluid (quick question)
  • rwooduk
  • · Replies 4 ·
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4
How Does Winkler's Method Calculate Dissolved Oxygen in Water?
  • Tyto alba
  • · Replies 1 ·
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Temperature(Pre) -- Gas Chromatography Question
  • rwooduk
  • · Replies 3 ·
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3
How Should One Learn Synthetic Chemistry and Predict Reaction Pathways?
  • MoreKnowledge
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Nearest neighbour, nnn....etc. of an atom in a crystal
  • qnach
  • · Replies 2 ·
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2
Nobel prize: molecular machines
  • DrClaude
  • · Replies 7 ·
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7
Difference between liquid HCl and a solution of HCl
  • donaldparida
  • · Replies 1 ·
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1
Are Exothermic Reactions a Violation of the Law of Conservation of Mass?
  • Nikhil faraday
  • · Replies 2 ·
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How can we prove the law of conservation of mass
  • parshyaa
  • · Replies 8 ·
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8
Why does the potential energy get lower as atoms get closer?
  • diogo_sg
  • · Replies 15 ·
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15
Raoult's law, Henry's Law, relative volatility
  • goggles31
  • · Replies 2 ·
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2
Why is vaporisation rate increased by a decrease in pressure
  • Roroy
  • · Replies 13 ·
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13
Zn + HCl and steel or iron plating
  • Roger Paine
  • · Replies 2 ·
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2
Could water chemistry be altered to make swimmers faster?
  • aerohead_18
  • · Replies 8 ·
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8
How anders celcius defined temperature scale.
  • parshyaa
  • · Replies 1 ·
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1
Temperature physical or chemical change
  • AMan24
  • · Replies 3 ·
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3
Does the amount of energy affect the dissociation of methane
  • Aafia
  • · Replies 6 ·
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6
Role of pressure and temperature in chemical reactions
  • physea
  • · Replies 1 ·
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1
Experiments with interfacial polymerization
  • Sam Donovan
  • · Replies 1 ·
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1
How to tell if two compounds will react?
  • KevinFan
  • · Replies 6 ·
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6
Enthelpy change for Helium liquefaction
  • Testa
  • · Replies 1 ·
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1
Combustion EQ of liquid Hydrogen and liquid Oxygen
  • MechStudent123
  • · Replies 11 ·
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Diffusion down chemical potential gradients
  • Hypatio
  • · Replies 8 ·
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8
VMINTEQ 3.1: How to add OH- species?
  • Baho Ilok
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2
Dissociation vs. Ionization: What's the Difference in Acids and Bases?
  • Any Help
  • · Replies 3 ·
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3
Thermally Stable Materials for Selective Oxygen Trapping and Manipulation
  • physea
  • · Replies 2 ·
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2
What if a chemical reagent reports purity as a range?
  • Baho Ilok
  • · Replies 2 ·
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2
Organic reaction mechanism help -- Looking for resources
  • ReidMerrill
  • · Replies 10 ·
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10
What solute won't leak through dialysis tubing
  • AamsterC2
  • · Replies 3 ·
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3
CO2 Absorption with Amines: Demo for Students
  • mishima
  • · Replies 1 ·
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1
How expensive are satellite fuels?
  • member 428835
  • · Replies 8 ·
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8
Can H2S Molecules Form Hydrogen Bonds?
  • rashida564
  • · Replies 14 ·
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Question about the viability of a chemical reaction
  • sgstudent
  • · Replies 4 ·
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4
Molarity vs. Concentration: What's the Difference?
  • Any Help
  • · Replies 7 ·
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7
Role of Fermi Contact Interaction in J-Coupling
  • Steven Hanna
  • · Replies 2 ·
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2
How to create a buffered pH gradient?
  • ytha
  • · Replies 9 ·
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9
Is there any chemical reaction with 0 time?
  • Noduagga
  • · Replies 4 ·
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4
Ionic strength of Mcilvaine's Buffer
  • Jim B
  • · Replies 3 ·
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3
Standard corrections to GFE for uni and bi molecular rxns
  • Einstein Mcfly
  • · Replies 2 ·
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2
How to Convert Mass Fraction to Mole Fraction Using CO2?
  • FionaZJ
  • · Replies 2 ·
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Strange question:which chemicals cause skin reactions
  • Dandush
  • · Replies 1 ·
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1
What is the Standard Reduction Potential for 2CO2 + 2e- <-> (C2O4)^2-?
  • Ann Par
  • · Replies 3 ·
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3
Element Table Puzzle: Is the Universe at Play?
  • revv
  • · Replies 5 ·
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5
Dot between the molecular formula of compounds
  • donaldparida
  • · Replies 3 ·
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3
Popular Science Night: Physics in a Pub
  • Omar93
  • · Replies 1 ·
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1
Water and its interesting 3 phases....
  • fog37
  • · Replies 26 ·
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26
What are some good polymerization chemistry experiment ideas
  • Sam Donovan
  • · Replies 7 ·
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7
NMR spectroscopy, ligand's influence
  • KarolinaPL
  • · Replies 1 ·
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1
Behavior of charged particles in Free and Bound states
  • petrushkagoogol
  • · Replies 1 ·
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1
Zinc+Iron+Acetone+Hydrogen Peroxide
  • General Scientist
  • · Replies 2 ·
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2
Difference between energy and enthelpy of adsorption?
  • goggles31
  • · Replies 2 ·
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2