PDA

View Full Version : Chemistry



Pages : [1] 2 3 4 5 6 7 8 9 10

  1. RSC referencing help please!
  2. Kd Distribution Question
  3. how to turn glass into a mirror
  4. How to make a transparent water based semi fluid?
  5. Quinolizidine alkaloids and water
  6. Need a solution to my dilution of a solution
  7. Looking for guidance.. newbie with no idea!
  8. Adding Paint colors to Rubber material products.
  9. Printed Dictionary for Periodic table of elements.
  10. Chemistry help with Nitrous Oxide
  11. How does the structure of ethane give it the properties described: colourless gas at room temperature with a low boiling point (-89)?
  12. How to workout the amount of moles present in this given question?
  13. How fast do nitrates propagate throughout a water column?
  14. White deposition (crystal) forming on painted metal surfaces.
  15. Photoswitchable supercapacitor
  16. Aluminum-Sodium eutectic mixture
  17. Chemistry experiments at home
  18. Does AMBER decay in oxygen?
  19. Sodium Carbonate
  20. What is capacitance
  21. Question
  22. benzoyl peroxide
  23. Charcoal reaction.
  24. Experiment Legality
  25. Metallurgy
  26. Please help me understand ions and isotopes
  27. How to calculate protons and electrons in NH3BF3?
  28. What is covalent bond?
  29. Si02 in an automotive wax
  30. Sodium-Sulfur battery will replace Li-ion?
  31. chemistry calculation help please
  32. which types of chemical reactions can take place in cholesterol
  33. pH value for planet earth.
  34. Atomic miniaturization
  35. Hydrogen Flammability and explosive reaction
  36. Colour Degradation
  37. Metal strength rating?
  38. Are all carbon composites produced from oil?
  39. What applications could biopolymer gel have?
  40. Fizzy strawberries.
  41. gas + gas = liquid
  42. DIY Electrochemical Cell Experiments
  43. Alkali metals and formation of bases....
  44. Polar and Nonpolar Molecules
  45. Understanding Diodes
  46. Finding the percentage unionised of a compound with 3 pKa
  47. discoloration of sample in high temperature solid state methods
  48. radioactively labeling items...using these to track moving objects
  49. Hydrochloric acid into calcium buildup tank ?
  50. Why we don't spontaneously combust! ;)
  51. Passive Soil-gas samplers (PSG samplers) activated carbon
  52. Coffee vapo inhaler?
  53. Atomic Crystal Structure
  54. What are some pyroelectric materials?
  55. Looking for a chemical with a specifc exothermic reaction.
  56. Boiling points
  57. Sodium Fluoride Indicator Drops
  58. can people just check a calculation for me because it seems a bit off
  59. Semi Permeable Membranes for Carbon Dioxide
  60. Carbon-Oxygen Dilemma
  61. Greenhouse Gases for Something Useful?
  62. Acidic Attractant?
  63. Alcohol-free beer and wine?
  64. Uncomfortable with Schrölinger's Equation.
  65. How can we retrieve CISD coefficients in Gaussian software?
  66. How close can one solid state object be to another solid state object?
  67. Black precipitate from silver nitrate titration
  68. Volumetric concentration from mass concentration
  69. What is calcium Nitrate used for in this method?
  70. How long would it take for a plastic fork to disintegrate in a landfill?
  71. How can I accelerate my laboratory practise?
  72. Effect of EDTA on commercial antibodies
  73. Please don't hate me too much for asking this very basic question
  74. Is it correct to say
  75. Microbiology: Osmolarity help!
  76. Detecting Cyanide with an ISE
  77. Periodic table MADE of elements?
  78. Ferrocyanide when HCl is added in basic conditions
  79. How can I improve my career in pharmaceutical industry?
  80. Addition of copper ii sulfate solution to ammonia
  81. Compounds formed by three atoms
  82. Pollution transforming concrete - Nanonews
  83. Graphite
  84. Opinion of chemists on origin of water
  85. functional groups
  86. Chemist in pharmaceutical industry?
  87. Oil and oiliness
  88. IUPAC naming
  89. This question is stuck in my head! I want it out!!!
  90. boiling points
  91. Fractional Distillation
  92. Polyethylene Glycol 300/400 conversion
  93. Name the following molecules using the IUPAC system:
  94. Michigan Banned Chemicals List?
  95. Mercury, charchoal and peat
  96. Batteries and electrolytes
  97. Why do non- ionic surfactants make bigger micelles
  98. What is the IUPAC name?
  99. Thinking about Major in BioChemistry
  100. Name a gas that smells similar to polish remover that can cause breathing difficulty, and mucous to form a thick sticky film?
  101. A little bit of help with diffusion rates PLEAASEE!
  102. Does toothpaste chemicals may be damage to our health?
  103. How does a single proton change gold into mercury?
  104. Biogas/Methane Generator Help
  105. Which chemicals do you use to enhance your muscles?
  106. Chemical reactions for freezing water multiple times
  107. Need help with CO2 electrolysis
  108. Super glue had a reaction on my fridge
  109. Absolute Zero Impossible?
  110. Need new catalyst for Hydrogel experiment
  111. PEG hydrogel for catheter coating
  112. Coca Cola and Milk - chemical reaction?
  113. Aragonite
  114. What determines the state of matter?
  115. Going from Ksp to M
  116. How to determine molecular structure of a compound from Mass Spectometry data?
  117. Organic Chemistry
  118. Finding the purity of reagent by mass of product
  119. Calculating weight of product
  120. New 'miracle' materials
  121. Balancing a redox equation
  122. Electrochemical Cell equations
  123. Oxyhydrogen Calorific Value
  124. Rydberg's Formula
  125. Changing Carbon Monoxide Into Oxygen
  126. Help splitting in ions
  127. Isopropanol on soap
  128. Are chemists pragmatists?
  129. Radioactivity
  130. Likelihood of alternative synthetic oil in the next few decades?
  131. Stuck for an answer to a kid's question.
  132. Dust Effect for Models
  133. What Exactly is This Company Proposing?
  134. What is created if you mix water (H2O) and ozone (O3)?
  135. Salted Water & Freezing
  136. Aluminum in alkaline environment , Self-reactive, Solution
  137. High School Experiments with PFC Chemicals
  138. Weight of gold chloride
  139. Combining tastes in cooking.
  140. What is the most complex molecular structure you can think of
  141. How does bleach work?
  142. Fractionating process to obtain fractions with a boiling point between -160 C to +20 C ?
  143. I'm working on a project that involves recycling plastics. Can anyone help me by sharing some knowledge?
  144. addition of inert gas
  145. will hydrogen gas be on top in atmosphere?
  146. Minimizing exposure to chemical coatings used in tents
  147. How do you crush an atom?
  148. exsolution lamellae?
  149. Need help naming these substances (exam coming up)
  150. Hydrogen Poly sulfide or Sulfur?
  151. orbital energy level of he+
  152. A Question That Led Me Here!
  153. Problems Preparing phosphate buffer and cinnamic acid
  154. Order of basic strength
  155. Effects of electronegativity on the bonding on an ionic compound? AgBr
  156. Looking for sublimation materials at less than 300 degrees C
  157. Degradation of cellulose
  158. Innovation: Commercial flights, crashes, salt water, and satellites
  159. Why does more sugar dissolve in water than salt
  160. Can camphor used to breakdown the polystyrene ?
  161. How is Hydrogen Cyanide bonded?
  162. Nh2 + o ?
  163. Looking for a material
  164. Electrolysis
  165. Does Theoretical Chemistry allow the order of a reaction to be derived?
  166. Grignard Reaction
  167. Empirically figuring out atomic mass
  168. decrease in lattice energy and hydration energy means more positive or negative if to explain solubility of group 2 sulphate.
  169. CaO or MgO, which one are more soluble?
  170. What does ethanol evaporate into?
  171. Compound with less affinity for glycol then methane
  172. a comparison between an experimental pH and a calculated pH
  173. My new possible experiment idea to test to see if Oxygen would combine with gamma-Aminobutyric acid
  174. Graphene Oxide.
  175. Chromatography charges
  176. Noob questions about silver nitrate photosensitivity
  177. Dissociation vs ionization?
  178. How does the chemical reaction in Alkaline Batteries come about?
  179. Is there a compound in the Universe which is Oxygen Hydrogen Hydrogen Nitrogen OH2N?
  180. Stoichiometry Problem
  181. Preparing butanoic acid from 2-butanol.
  182. Carbonic acid.
  183. Van Der Waals Volume/Covolume
  184. addition of unsaturated hydrocarbons
  185. How do alcohols dehydrate?
  186. How can you stop a hydrochloric acid from being harmful? (6th grader level)
  187. Help! Using IUPAC's recommendations to name the following haloalkane.
  188. how does CuSO4.5H2O dehdrate?
  189. can we have negative pH values!!!!!!!!!!
  190. Electronegativity
  191. Modelling Question
  192. Do you know these three industrial manufacturing process of toluene
  193. mole equation help?
  194. preparation of sodium carbonate
  195. Weighing out metal ions from their hydrated salts.
  196. Cl
  197. Steam Bath Chemistry?
  198. Pencil, paper detect hazardous chemical vapours - world of chemicals
  199. xylene molecular formula, density, molar mass, boiling point - world of chemicals
  200. world of chemicals - Sulfuric acid chemical properties - molecular formula, molar mass, boiling point
  201. A basic Chemistry question about Apatite
  202. strongest endothermic reactions
  203. There's a gas that causes the lungs, and sinus to swell up, get irrated, and produce abnormal?
  204. ALPHA particle
  205. Why KMnO4 is called permanganate?
  206. gibbs
  207. What elements compose these substances?
  208. Help! Confusion acid-base equilibrium in water
  209. Reactions of acids/bases with water: correct use of arrows
  210. Sodium Hypochlorite + Aluminium Chloride -->
  211. Synthesis Reactions...???
  212. Law of ostwald confusion
  213. Correct pipette usage
  214. How is NaOH considered a strong base, does it even accept protons?
  215. What happens if an element with an atomic number of 119 is discovered?
  216. Calculate radiogenic isotope (3 Pb isotopes) concentrations by only the given weight%
  217. Why current flows in opposite direction of electrons?
  218. Achieving Dissolution with these Vitamins/Supplements. Help!
  219. products of Rayon synthesis?
  220. What is Hydrogen??
  221. Zinc cyanide
  222. Daddy Long Legs Contaminating Edible Foods/Liquids
  223. What's the difference between sodium metabisulphite and sodium bicarbonate?
  224. how to calculate number of waves in an orbit?
  225. why Pz orbital for sigma bonding?
  226. Purifying Starch at Home
  227. Adhesive for glass
  228. explosive chemistry
  229. Gallium chemistry
  230. Reaction with Sodium azide. Can I reflux the reaction mixture??
  231. Tetraamine copper chloride
  232. Boiling Water Displacement Level?
  233. Synthesis of TiO2 nanowires
  234. Salt crystal hardness
  235. Dehydrating Potassium carbonate (dessicant) for reuse
  236. Problem with Gaussian Calculation - Program terminating with error
  237. chemicals
  238. Removing breath vapor on cold days
  239. Magnesium Chloride inhibitors
  240. How to evaporate solution?
  241. Question: No signal in LC-MS/MS analysis (Quattro micro, ESI+, Masslynx)
  242. One question
  243. Manganese!
  244. chemistry
  245. Entropy of a system during synthesis reactions
  246. Hydrogen Carbonate reactions....
  247. Does Anyone Know the Method of Producing TiO2?
  248. How does Casein Glue work?
  249. Electrophilic Addition
  250. Nomenclature for organic molecules