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.
Why do most reagents have potassium instead of sodium?
  • ShawnD
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Why is H3O+ the Strongest Acid & OH- the Strongest Base?
  • bomba923
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How to Deal with Overlapping Absorbances in Spectrophotometry?
  • thenewbosco
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2
How Would the Periodic Table Change if L = N?
  • sarabellum02
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1
Energy Release & Conversion in Na+ Cl- Ion Combination
  • sid_galt
  • · Replies 10 ·
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10
Decomposition of hydrogen peroxide
  • Clari
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2
The Iron and Copper Age: History, Significance, and Curiosities
  • aek
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3
Vapor Density: 1.3 - What Does it Mean?
  • indoubt
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What is the final temperature when mixing heated and cool water?
  • chem_tr
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5
Question about AMU & Temp. Conversions
  • Euphoriet
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3
Why does the earth behave like a giant magnet?
  • lwymarie
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2
Making 10,000ppm Hypochlorite Solution
  • indoubt
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5
Why is Weighing Liquids More Accurate than Measuring w/Cylinder?
  • mousesgr
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3
What is the Density of a 20% Sodium Hydroxide Solution?
  • tigger
  • · Replies 8 ·
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8
Revive Your Soda: How to Remove Melted Ice
  • Pengwuino
  • · Replies 7 ·
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7
Buy Chemicals Online: Where to Find the Cheapest Prices
  • jzq
  • · Replies 7 ·
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7
What is the final temp. of each liquid?
  • BJN153
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4
Why and how does ice sublimate in the freezer?
  • chemister
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2
Solving Zn(NO3)2 and Al(NO3)3 Problems with NaOH
  • dagg3r
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2
What wavelenght is expected for light composed of photons
  • moonlight1
  • · Replies 4 ·
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4
Help with products of reactions
  • pariswhitney
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4
Calc Heat of Vaporization TiCl4: -804.2 + -763.2 KJ/mole
  • chemister
  • · Replies 2 ·
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2
How to Calculate the Volume of Hydrogen Gas from Liquid State?
  • chemister
  • · Replies 8 ·
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8
Exploding Hydrogen Balloons: Fireball Size and Necessity of Flame
  • chemister
  • · Replies 3 ·
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3
Determining Solubility Product of \text{BaCO}_3_{(s)}
  • broegger
  • · Replies 14 ·
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14
Understanding Potential Difference in an Electrochemical Cell
  • cepheid
  • · Replies 7 ·
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7
Solving for the Safe Combination: pH of Solutions A & C
  • chjopl
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H/D Exchange: Why Minimum at pH 3?
  • Monique
  • · Replies 2 ·
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2
Help for Ionization Arranging and Explanation
  • bebelova
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1
How to Synthesize N-Ethylethanamide?
  • naren11
  • · Replies 11 ·
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11
Can the Standard of Living be Measured in Units of Energy per Person?
  • bebelova
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1
What is the Color of Green Copper?
  • ShawnD
  • · Replies 6 ·
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6
Is Deuterium Chemistry Really That Different from Hydrogen?
  • rachmaninoff
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2
Why would sugar dissolve in water much faster then salt does?
  • joejo
  • · Replies 10 ·
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10
Why is the activity series of ions in aqueous solutions ordered?
  • so-crates
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3
Calculate Volume of Carbon Monoxide at 214°C & 367 torr | Gas Law Problem
  • jzq
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2
Are Fossil Fuels Our Savior and What Are Their Chemical Properties?
  • lwymarie
  • · Replies 2 ·
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2
Argon vs. Helium for Window Insulation: Which is Better?
  • Physics is Phun
  • · Replies 13 ·
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13
Investigating Strength of Hydrogen Bonds: Cyclohexane/Ethanol Experiment
  • hydrogène
  • · Replies 3 ·
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3
Synthesis Challenges at Innocentive.com
  • Astronuc
  • · Replies 3 ·
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3
Limestone, weathering, metal, word equation
  • lwymarie
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2
Unraveling the Mystery of Lasers & Quantum Theory
  • Roxy
  • · Replies 2 ·
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2
Difference between crystallization and vaporization?
  • lwymarie
  • · Replies 4 ·
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4
Halogens exist in different physical state
  • physicsss
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3
How Do I Calculate the Molarity of Potassium Iodate in a Redox Titration?
  • egg
  • · Replies 6 ·
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6
Questions in conductivity of solutions
  • DW_1983
  • · Replies 3 ·
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3
A question about gravimetric analysis
  • chem_tr
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1
Volumetric estimation of iron(II)ions
  • josephcollins
  • · Replies 4 ·
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4
Measuring rate of reaction via rate of temperature change
  • GregC
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3
Mercury Hg2+2 Ion: Why Does It Form?
  • Cesium
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Can Inhaled Chemicals Induce Sleep?
  • KingNothing
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4
What Does v/v, w/w, and Normal Mean in Relation to Molarity and Solutions?
  • jzq
  • · Replies 3 ·
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3
Making Print Plates with Copper Etching and Household Materials
  • Monique
  • · Replies 4 ·
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4
Equilibrum Concentration Problem
  • parwana
  • · Replies 3 ·
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3
Why do transition elements have different charges?
  • lwymarie
  • · Replies 8 ·
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8
Please check these balanced equations
  • jzq
  • · Replies 2 ·
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2
Why Does Water Rise in a Test Tube When a Candle Burns?
  • rdgt3000
  • · Replies 2 ·
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2
Elements be considered as biofuels?
  • espania
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Does Polyprotic Strong Acid Completely Dissociate in a Net Ionic Equation?
  • apchemstudent
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Is Corn Starch the Same as Normal Starch?
  • mrjeffy321
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2
Question in regards to the equilibrium law and expressions
  • walker
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2
Spectrophotometry area of chemistry
  • thenewbosco
  • · Replies 3 ·
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3
Oxidation and reduction Disproportionation
  • Cheman
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1
How to Calculate pH and Molarities in Sulphuric Acid Solutions?
  • Clari
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1
Conjugate pairs versus not conjugate pairs
  • sotellme
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1
Why Is the Inverse of Time Used to Measure Reaction Rate?
  • ash
  • · Replies 8 ·
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8
What Is the pH of a Solution with Double Dissociation of Ascorbic Acid?
  • relativitydude
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1
What Does the Calorie Rating on Food Mean and How is it Measured?
  • Pengwuino
  • · Replies 10 ·
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Vapor Pressure in fresh vs salt water
  • physicsss
  • · Replies 3 ·
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3
To determine the activation energy
  • Clari
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1
Inorganic Fertilizers: Nitrogen & Organic Nitrogen
  • Soaring Crane
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1
How to Calculate the Mole Fraction in a Pentane-Hexane Solution?
  • filou
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1
Poll: Best invention ever and why?
  • chesterdaly
  • · Replies 6 ·
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6
What is the most powerful acid known?
  • TheoryMan
  • · Replies 13 ·
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13
What is the Correct Molar Enthalpy of Reaction for NaOH + NH4Cl?
  • gstullo
  • · Replies 2 ·
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2
Titrate sulphuirc acid with sodium hydroxide
  • The Bob
  • · Replies 28 ·
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28
Recrystallization: Melting & Boiling Points
  • tipton12
  • · Replies 5 ·
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5
American Chemical Society - Spring 2005
  • Astronuc
  • · Replies 0 ·
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0
Which Calorimeter Is Better for Minimizing Experimental Interference?
  • jzq
  • · Replies 2 ·
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What is the molar mass of the unknown gas?
  • chemister
  • · Replies 4 ·
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4
How to Analyze and Evaluate the Enthalpy of Neutralisation Document?
  • matthewgiblin
  • · Replies 2 ·
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2
Understanding Reducing Agents: LiAlH4, NaBH4, H2/Nickel
  • garytse86
  • · Replies 5 ·
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5
Where Can I Find Reliable Information on the Manufacture of Biofuels?
  • EIRE2003
  • · Replies 2 ·
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2
How Much Nitrogen is Required to Produce 5kg of Nitric Acid?
  • k3l
  • · Replies 7 ·
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7
Finding major species in aqueous solutions
  • parwana
  • · Replies 1 ·
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1
Is Fire Simply Incandescent Gas?
  • evthis
  • · Replies 3 ·
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3
Are Nonpolar Liquids Dangerous and What Are Their Harmful Effects?
  • bomba923
  • · Replies 17 ·
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Last Minute Question-Test Hours away
  • physicsss
  • · Replies 5 ·
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5
Identity of the metal in a particular sulfate salt
  • sid_galt
  • · Replies 4 ·
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4
Chemical Equilibrium, finding concentration
  • parwana
  • · Replies 2 ·
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2
Extraction/purification caffeine - help
  • soundlover
  • · Replies 2 ·
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2
Solving Limiting Reactions: O2 + 2NO2-->2NO2
  • megas
  • · Replies 8 ·
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8
Calculating Chemical Shifts for OCH3 Benzene Ring
  • MusicMonkey
  • · Replies 1 ·
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1
What should be the shape around each carbon atom?
  • Roxy
  • · Replies 3 ·
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3
Are white and brown sugar the same thing?
  • ShawnD
  • · Replies 2 ·
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2
Nfo of different chemical components?
  • sotellme
  • · Replies 6 ·
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6
Calculating Delta H of A_2 Reaction with B_2
  • Dooh
  • · Replies 2 ·
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2
Exploring Periodic Table Trends: Ionization Energy, Atomic Radius, and More!
  • courtrigrad
  • · Replies 2 ·
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2
Help Needed: Activation Energy for KMnO4 + H2C2O4 Reaction
  • eku_girl83
  • · Replies 4 ·
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4
Two, atleast to me, perplexing chem problems
  • relativitydude
  • · Replies 2 ·
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2