Chemistry Questions and Answers

  • How to differentiate osmolarity and osmolality?
  • How to differentiate osmolarity and osmolality?
  • How to digest steel nails?
  • How to dilute glass frosting gel?
  • How to do FRP (Fibre Reinforced Plastic) coating? what is process for it? which chemicals a?
  • How to do this chemistry conversion? Please help I need to go to bed!?
  • How to draw a density column?
  • How to draw the structure for iron (lll) complex?
  • How to extract lithium ores from the earth?
  • How to figure out how many moles of O2 are needed to react completely with 52 L of CH4 at STP to produce?
  • How to figure out the percentage of iron..?
  • How to find how how many electrons are there in any substance?
  • How to find molar mass...?
  • How to find molecular ions peaks and natural percentage abundance of molecular ions?
  • How to find out the limiting reagent in a chemical equation with the hit and trial method?
  • How to find the amount when you have...?
  • How to find the molecular mass of a solute?
  • How to find the pH of 0.080 m of NaCH3CO2 with 0.030 m HAc?
  • How to find the pH?
  • How to find the volume of water in liters?
  • How to get sublimation energy for the compound which is not sublimating? For e.g. C (sub) in graphite.?
  • How to glue HDPE together ??
  • How to identify pure gold from fake?
  • How to identify pure latex??
  • How to ignite the oxygen candle?
  • How to know if a metal is more reactive then another?
  • How to know if two structures are identical, enantiomers, diastereomets,constitutional isomers?
  • How to know what is the anode and what is the cathode?
  • How to make 0.05 M soution of Copper II Acetate?
  • How to make 50ml of a 5mg/L solution using a 10mg/ml solution?
  • How to make 50ml of a 5mg/ml solution using a 10mg/ml solution?
  • How to make a galvanic cell experiment?
  • How to make a membership at the chemistry socities?
  • How to make a mixture of 1 liter 12N Hydrochloric Acid?
  • How to make a ph meter?
  • How to make a Solid rocket Fuel with Potassium nitrate?
  • How to Make An Editable Volcano?
  • How to make brass (molten form in crucible) lead free ?
  • How to make brass (molten form in crucible) lead free ?
  • How to make calcium hydroxide or slaked lime react with something?
  • How to make condoms?
  • How to make hard rubber?
  • How to make incense-sticks at home using easily available products?
  • How to make Phthalamic Acid from Phthalic Anhydride and Liquor Ammonia?
  • How to make pure potassium from potassium sulfate?
  • How to make soap?
  • How to make..?
  • How to measure gas produced?
  • How to name esters?
  • How to neutralise chlorine gas?
  • How to pass a drug test in less than a week?
  • How to perform experiment to find rate of evaporation of acetone?
  • How to prepare 5 liters of .10 Moles aqueous solution of barium chloride?
  • How to prepare a stock solution?
  • How to prepare copper sulfide?can I add copper chloride to Sodium thiosulphate?
  • How to prepare ethereal Diazomethane in the lab safely?
  • How to prepare ethereal Diazomethane in the lab safely?
  • How to prevent citric acid react with Sodium laureth sulfate in a solution?
  • How to purify colloids?
  • How to purify organic soluble mass?
  • How to rate of flow of solution and liquids horizontally?(by using any 3 liquids)?
  • How to recover pure silver from Silver Chloride.?
  • How to reduce lead (II) Sulphate to lead / lead sulphide / lead oxide without using electro-chemistry?
  • How to remember ionic charges?
  • How to remove aluminium oxide layer?
  • How to remove chlorine from the water ? is there any medicine available in the market?
  • How to remove oxide layer of each metal?
  • How to score well for triple science?(physics, chemistry, biology?)?
  • How to select a column for hplc method development?
  • How to separate gold without using mercury?
  • How to separate water from oil if it has been mixed to form emulsion?
  • How to show an exothermic reaction has occuring in a chemical equation?
  • How to solve for Ksp?
  • How to solve this question?
  • How to tackle silly mistakes?
  • How to tell if it is a acid or a base?
  • How to tell if reactions will be spontaneous?
  • How to test for water purity in the lab?
  • How to test juices for their impurities as an experiment?
  • How to test the water vapor in air?
  • How to thin an acrylic adhesive containing toulene & heptane?
  • How to use & work anthrasite activated carbon in water treatment.?
  • How to write Formulas?
  • How to write structural formula for the following esters?
  • How to you get P (pressure) in kPa from the mass and volume?
  • How use Sulphonated Naphthalene Formaldehyde in terrazzo tiles ?
  • How was radon discovered?
  • How was the AP Chem Test?
  • How was the first drop of water possibly created on earth?
  • How we can get Red Phosphorus from any common materials?
  • How will protein respond in electrophoretic system, should pH become lower than isoelectric point of protein?
  • How will various chemical groups of a dye might affect its properties?
  • How will you relate science to matter?
  • How will you remove traces of water from solvent in HPLC?
  • How will you separate a mixture of carbon tetrachlorode and water? explain the principle of the method?
  • How will you seperate a mixture of carbon tetrachloride and water?explain the principle of method.?
  • How wold you make 100ml 2.35m solution from 18.0m stock solution of nitric acid?
  • How would [OH-] in an ammonia solution compare with [OH-] in a sodium hydroxide solution of same concentration
  • How would a hydrated sample of BaCl appear different from an anhydrous one?
  • How would I balance this equation?
  • How would i balance this redox rection Cu+NO3-> Cu+2+NO2?
  • How would i calculate the concentration of the acid ?
  • How would I dephosphorylate something?
  • How would I draw (CH3)2NCH2CH3 as a skeletal structure and a Kekule structure?
  • How would I draw CH3CH2COOH as a Skeletal structure and a Kekule structure?
  • How would I find the mole fraction of sodium phosphate?
  • How would I find the solubility of CO2 in carbonated water?
  • How would i give someone an atomic wedgie?
  • How would I go about testing the mercury level in fish?
  • How would I make 15 M NH3 for an experiment?
  • How would i write a balanced chemical equation for the following.?
  • How would i write a balanced chemical equation for the following.?
  • How would the addition of distilled water affect this reaction?
  • How would the following change the rate of the reaction?
  • How would the rate of effusion of a gas depend on the gas's pressure?
  • How would u do this?
  • How would you balance theequation = ?SiCl4 + ?H2 + ? Si -> ?HSiCl3 + ?SiCl4 + ??
  • How would you Balance this equation?
  • How would you calculate Joules per molecule from Joules?
  • How would you define DISTILLATION?
  • How would you demonstrate an amphiprotic equation?
  • How would you describe precipitation at a molecular level?
  • How would you dilute a concentrated shampoo? What solvent would you use?
  • How would you dilute oil base paint to use in a sprayer?
  • How would you draw "O3" as a covalent bond?
  • How would you find % deviation with the given data?
  • How would you predict the products for the following reactions and then balance the equation?
  • How would you predict the products for the following reactions and then balance the equation?
  • How would you prepare 100 ml of 2.0 M HNO3 starting with 10.0 M HNO3?
  • How would you prepare 100 ml of 2.0 M HNO3 starting with 10.0 M HNO3?
  • How would you prepare 250 ml of a 0.040 M ammonium chloride solution?
  • How would you prepare 250.0mL of .45 M Mg(NO3)2 from solid Mg(NO3)2?
  • How would you prepare 300 mL of .75M NaBr solution using 2.0M NaBr stock?
  • How would you prepare 90ml of 2.0M H2SO4 from 18 M stock solution?
  • How would you prepare a 100 mL primary standard solution of 0.01 M KIO3?
  • How would you separate a mixture of hydrocarbons?
  • How would you seperate clear gelatin (Knox gelatin) from table salt, sand, iron filings, and sawdust?
  • How you can determine ferrous fumarate?
  • How you tell if a nail is zinc-coated (galvanized)?
  • HPLC Analysis method for Sunset Yellow?
  • HPLC fittings problem?
  • Humidity levels affecting solvent evaporation?
  • Humidity levels and air pressure?
  • Hybridization of the iodine atom in periodate ion, IO4-?
  • Hydrazines?
  • Hydrocarbon with molecular mass greater than 100 grams?
  • Hydrochloric acid + sodium hydroxide = to what?
  • Hydrogen bonding -- alpha helix and the beta pleated sheet?
  • Hydrogen bonding?
  • Hydrogen burns to give water. If 200.0cm3 of H2 reacts with 150.0 cm3 of O2, what volume of water...?
  • Hydrogen concentration is expressed as___________.?
  • Hydrogen concentration is expressed as___________.?
  • Hydrogen gas and chlorine gas?
  • Hydrogen gas using electrolyse?
  • Hydrogen iodide can be synthesized according to the reaction?
  • Hydrogen molecule is?
  • Hydrolysis and dehydration synthesis?
  • Hydrolysis?
  • Hydrosphere?
  • Hyperbaric oxygenation?
  • I need help on this science question?
  • I am confused about generating symmetry-adapted orbitals?
  • I am doing a science project and i need help with an assumption. (electrolysis)?
  • I am doing a science project, and I need help please?
  • I am doing a titration lab report and I have a question about my gragh?
  • I am doing my msc organic chemistry ,i want to do ms in chemistry in us,tell me which r besst universities?
  • I am having a problem on molecular geometry-------"Regular geometry is that....?
  • I am having trouble finding an experiment with a chemical reaction using household equipment that is safe?
  • I am looking for a beta source with stable activity ( long half-life )and are cheap (high natural abundance )?
  • I am looking for a clear sealer to wipe over plastic headlights that will protect and dry within 5-10 minutes?
  • I am looking for a product I can apply to plastic sheet to improve the sheets ability to separate or slip?
  • I am looking for a spontaneous, cheap, safe chemical reaction that produces a lot of gas. Any suggestions?
  • I am not familiar with punnent squares. O+ and O+, can that make O+ offspring?
  • I am researching niels bohr and was wondering if anyone had some interesting facts on him?
  • I am stuck on balancing an equation. Can anyone help please?
  • I am truly stumped with this prompt. Can someone help me?
  • I am wanting to know if it is good idea to install an Eyewash/shower in an ammonia storage room.?
  • I ask my all friend's what's put the petrol in the freezer .?
  • I believe my food was tampered with at a kfc resturant where can i get these food items anilized?
  • I can't seem to get these 2 answered?
  • I cant understand a bit of eudiometry plz help??
  • I did most of this crossword puzzle but im still having trouble and i would like to check some of my answers?
  • I don't get it...Characteristic Properties of Mercury??!!And were can I find that!!?
  • I don't know how to finish this equation CuCO3 yield ? :Hint Carbonates break down to form CO2 and metal oxide
  • I dont understand #2,help?
  • I don't understand how to find the specific heat of a substance?
  • I don't understand the logic! Can someone please explain this simplistically?
  • I dont understand this chemistry question can any one please explain?
  • I dont understand!! I have done this problem several times and get the same thing!! Redox!?
  • I dont uoderstand how to calculate moles. How many moles of C atoms are in 1 mol of sucrose (C12 H22 O11)?
  • I EXAM tomorrow and I've problem with redox titration experiments?
  • I found a small container of chloracetaphenone, it is many years old. what was this used for?
  • I gotta chemistry question, can someone help me?
  • I hate to double post, but no one will respond, and i need and a solid answer of how to do this?
  • I have 0.2 mol/L of A and i have an activation energy of 80 kj/mol. what is the prefactor?
  • I have a basic chemistry question?
  • I have a chemistry exam - Some chemistry questions to be answered?
  • I have a chemistry project and i have to think of a game using the periodic table?
  • I have a chemistry project I need to do and I need some inspiration from the wise and all knowing public.?
  • I have a chemistry question regarding compounds...?


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