Chemistry Questions and Answers

  • What is the the rate constant for this first order reaction is __________ s-1?
  • What is the theoretical van't Hoff factor for iron (III) nitrate?
  • What is the theoretical yield of aspirin if 85.0g of salicylic acid is treated with excess acetic anhydride?
  • What is the theoretical yield of sodium carbonate, expressed in grams,?
  • What is the theoretical yield of urea when 200. g of ammonia is reacted with 100. g of carbon dioxide?
  • what is the theory and chemical reaction behind the coca cola n mentos reaction?
  • What is the theory behind:increasing the concentration of something will increase the rate of reaction?
  • What is the thickness of a sheet of tin, measuring 75cm long and 50cm wide and weighing 4125g?
  • What is the total force?
  • what is the total number of atoms in...?
  • What is the total number of orbitals in the principal quantum level n = 5 of an atom?
  • What is the total yield of ATP in the Krebs cycle for each glucose molecule that enters glycolysis?
  • What is the type of pollution caused by disposing synthetic materials polymers?
  • What is the umm... can't think of the word... from rocks to element,?
  • what is the unit for measuring dissolved oxygen?
  • What is the unknown volume?
  • what is the usage of organic compound in our daily life?
  • what is the use of beehive in chemistry?
  • what is the use of IR and UV?
  • what is the use of salt in toothpastes?
  • What is the valence shell for Se?
  • what is the value of heat of neutralisation of NaOH and HCl?
  • What is the value of Kb for a base that is 0.021 % ionized in a 0.037 M solution?
  • What is the value of Kc at 1000 K for the equilibrium below?
  • What is the value of Keq at this temperature for the following reaction. 2SO3 (g) <-----> 2SO2 (g) + O2 (g)?
  • what is the value of temperature coefficient of resistivity (a) for platinum?
  • What is the value of the equilibrium constant for the neutralization of hydrochloric acid with sodium hydroxid
  • What is the vapor pressure of CHCl3 in torr?
  • what is the viscosity of the corn flour?
  • What is the volume if you have 0.25 Molarity of NaCl and 0.050 mol of NaCl?
  • what is the volume of 1 cubic milimeter of water?
  • What is the volume of H2 is present at STP when 10.0g of magnesium was added to 500 ml of 5.00 x 10-1 M of HCl
  • What is the volume of the gas at 200degreesC if it is 25L at 0degreesC?PlEASE?
  • What is the volume of the ice cube submerged in the liquid?
  • What is the wastewater treatment of a nitrocellulose plant?
  • what is the water content of lard?
  • what is the wavelength of a neutron which has the thermal kinetic energy given by 3/2 kT at 300K?
  • What is the wavelength of an electromagnetic wave the velocity of which is 3.0E+10 cm/sec and the frequency of
  • What is the wavelength of an electromagnetic wave the velocity of which is 3.0E+10 cm/sec and the frequency of
  • What is the wavelength of the radiation in meters ?
  • What is the wavelength, in centimeters, of a neutron traveling at 810.0 m/s?
  • What is the wavelength, in centimeters, of a neutron traveling at 940.0 m/s.?
  • what is the weight of an amu?
  • What is the white ppt formed when carbon dioxide is bubbled into calcium carbonate?
  • What is the word formula and equations?
  • What is the word, in chemistry, for two substances that don't mix?
  • what is the?
  • What is thepH of CsI?
  • What is thermal decomposition?
  • what is thin layer chromology (TLC)?
  • What is this compound?
  • What is this compound?
  • what is tippex made from??
  • what is titaniums chemical name?
  • What is toothpaste made of ?
  • What is travertine? Is it a variation of limestone? Do they both have the same chemical composition?
  • What is twice as hot as 25 degrees Celsius?
  • what is unique about water and its bonds that break ionic bonds?
  • what is unique about water and its bonds that make it break ionic bonds?
  • what is uranium enrichment? what is the use of centrifuge in it?
  • What is used in the cremation process to ignite the heat source?
  • What is valency table and bonding?
  • what is vinegar made of?
  • What is water 'made' from?
  • what is white lead???
  • What is your visual observation when you add sodium hydroxide into a ferric hydroxide?
  • What is your visual observation when you drop dilute ammonium hydroxide into a ferric nitrate solution?
  • what is zinc hydride in elements?
  • what is: trichloroacetylacrylic acid?
  • What kind of chemicals or substances show up under a UV light?
  • what kind of cleaner removes ink stains best.?
  • what kind of diet pop works better for the diet pop and mentos experiment?
  • What kind of experiment can I do with coconut oil vs. olive oil?
  • What kind of intermolecular forces does carbon disulfide have?
  • What kind of material is formed when a piece of magnesium is burned in the air?
  • What kind of plastic was used in vintage 1950s dolls and is there a way to eliminate their unpleasant odor?
  • what kind of products have sodium hydroxide in them?
  • What kind of propellant do foam fire extinguishers use?
  • what kind of reactions are these?
  • What kind of simple chemistry experiment can i perform relating to greenhouse gases & their effect on plants?
  • What kind of store can I buy potassium nitrate (saltpetre) from?
  • what kind of substance is Cl2? colvalent or ionic?
  • What kind of sugar is in soft drinks like Pepsi or Coca-cola or Sprite?
  • What kind of this ligand Methyl Pyruvate isonicotioyl thydrozone?
  • What kind of water must be used for industrial purposes?
  • what kind of water must be used for the industrial purposes and Why?
  • What kind/brand of magnet could attract something like a screw from a foot or more away?
  • what kinds of compounds produce ions in a solution?
  • what lab techniques do you ues to help ensure that the gas collecting bulb contains only the desired gas?
  • What ligand is produced when HCl is added to CoCl2?
  • What liquid make a good solvent for iodine?
  • What makes a colloidal dispersion stable?
  • What makes citric acid a week acid?
  • What makes fuel in a fuel tank ( ex: carbon, hydrogen,etc.) in an airplane?
  • What makes petroleum difficult to remove from the rock underground?
  • What makes popcorn pop?
  • what makes sulphuric acid and nitric acid acidic?
  • What makes that lil farty sound while having sex?
  • What makes the Hydrogen Peroxide smell??
  • What makes the thermocouple generate a voltage?
  • what makes up acid acidic?
  • What makes Wintergreen Lifesavers spark when you chew them in the dark?
  • what mass is represented by 0.0225mol of each of the following compounds? C11H16O2 an antioxidant in foods,?
  • what mass of Ba3N2 is produces from combination reaction between 22.6g solid barium and 4.2gnitrogen gas?
  • What mass of copper is produced?
  • what mass of h2so4 can be obtained from 1000 tonnes of an ore which contains 32.0% of FeS2?
  • what mass of magnesium, in reaction with an excess of hydrochloric acid is needed to produce 128mL of hydrogen
  • What mass of sodium chloride is produced when excess sodium iodide reacts with 29 grams chlorine?
  • What mass of solute is needed to make 210 mL of a 0.663 M MgF2 solution?
  • what material are the ppost 1982 pennies are made up of? the pre 1982?
  • what material can be used to fireproof cement boards?
  • what material in which charges cant easily move?
  • What material would make the strongest, sharpest most effective combat sword? I think it is Damascus steel?
  • what metal conduct heat most?
  • what metal has the highest melting point?
  • What metal reacts easily with steam but does not react with water?..heeeelp!!?
  • What metals are used in cars?
  • what method is suitable and relevant to purify iodine, other than extraction by separation?
  • what method is used for producing aluminium?
  • What methods are used to separate H2O into floating hydrogen atoms and an oxygen atom?
  • What might be a structure for an isotope of Magnesium?
  • what molecule has 8 carbon atoms and 8 hydrogen atoms?
  • what monitoring property of the system could be sued to follow the rate of the following reactions?
  • What movie has a character explaining the structure of the atom to a student using a story they could remember
  • What name is given to the process by which water molecules attach themselves to the ions of the solute?
  • What new properties of aluminum emerge whem mixed with copper chloride and water?
  • what nonmetallic element will retain 3000farenheit without exploding or vaporizing?
  • What nontoxic metal will melt in your hand?
  • What nuclear structures contain DNA?
  • What objects should i use?
  • What observations should have been made after this experiement?
  • what order is formic acid when it reacts with bromine?
  • what organic compound has the most energy in its bonds?
  • What other factors affect the rate of reaction? simple as that!?
  • What part of the atom is the smallest?
  • What part of the world does potassium come from and is it a natural or man-made element?
  • What part on an atom forms bonds?
  • What particles, other than H2O molecules, are always present in pure water?
  • What percent of oxygen is present in aluminum nitrate?
  • what percent of the hydrated compound barium chloride dihydrate is water?
  • What periodic family does the element aluminum belong to?
  • what pH is [1] carbon dioxide and [2] Rubidium oxide when dissolved in water?
  • what ph level is calcium chloride?
  • What physical property must be different between two substances in distillation?
  • What physical property of air allows it's components to be industrually separated?
  • What Physisit was responsible for the concept of Nucleous fission?
  • What position is the chlorine at ?
  • What practical ways do medical doctors use chemistry?
  • What pressure is a person exerting on the floor if the person weighs 145lbs and has shoes that contact the fl?
  • What pressure is a person exerting on the floor if the person weighs 145lbs and has shoes that contact the fl?
  • what probably cause fish died in the river n the method to analyse.?
  • What problem might be introduced by this approach?
  • what process did mendeleev use to design the first peridioc table.?
  • what processes are used to transform a compound?
  • what procress occurs when dry ice, CO2(s), is changed into CO2(g)?
  • What product are expected to obtain from reaction of 1-methylcyclohexanol with...?
  • what product will get if p-tolyl-azo-2-naphthol react with epichlorohidrin?
  • What products are expected from reacting Acetaldehyde with KOH?
  • what products are produced when hydrocarbons are burned?
  • What properities of a molecule or ion will make a good ligand for forming complexes with transition metal ions
  • What properties do both glass and plastic contain that allows them to substitute for each other?
  • what properties of the elments did mendellev list as he began to organize the elemnts?
  • What provides us with evidence?
  • What qualities of the element TIN make it useful for this pupose?
  • what quantity of heat energy is released when 265 g of liquid water freezes?
  • What quantity represents the ratio of the number of moles of solute for a given volume of solution?
  • What quantum number is associated a hydrogen atom orbital that has an energy of?
  • what r the fumes that came out when we heat ransid oil or fat?
  • what raw material is used to make pure oxygen gas??
  • What reactants are used to form aspirin?
  • What reactants are used to form aspirin?
  • What reaction occurs when Br2 in CH2Cl2 is added to an alkane? When Conc. H2SO4 is added to Aqueous KMnO4?
  • What really burns your butt?
  • what role do "foreign" ions have o the solubility of slightly salt like lead iodide?
  • what role do enzymes play in a cell?
  • What rule governs the order of elements listed in a formula..for example: KCl or ClK..or CHO instead of COH?
  • What salt is formed when a solution of calcium hydroxide, Ca (OH)2, is neutralized by hydrochloric acid, HC1?
  • What salt is formed when a solution of copper(II) hydroxide is neutralized by phosphoric acid, H3PO4?
  • What salt is produced after mixing bleach and Hydrogen peroxide?
  • what salt is used to melt snow and ice on roads and sidewalks in winter?
  • what shall i do to be excellent in chemistry?
  • What shape does CHCl3 have? HOw do you know? Is this compound popar or nonpolar covalent? how do you know?
  • what shape is NCl3, using VSEPR theory?
  • What shape is SCl2, using VSEPR theory?
  • What should be the pH of a 0.1M NaOH solution?
  • What should I do with my degree in Medicinal Chemistry??
  • What simple evidence demonstrates that gas particles are in constant motion?
  • what simple machines make up a crank-type pencil sharpener?
  • what simple measurement is generally used to check the purity of organic solids?
  • what sites can help me solve stoichiometry problems?
  • what slake durability index means?
  • What specific alcohol is produced from the addition of water molecule to the carbon double bond of an alkane?
  • what stops the sugar crystals forming when there are water particles present?
  • what substance are responsible for the normal color of urine?
  • What substance when added to water will make it freeze most slowly?
  • what temp does a match burn at?
  • What temp. (Fahrenheit or Celsius) does a 30% concentration of H2O2 fracture into H2O and O1?
  • what tempature does water boil at?
  • what temperature does fire have to be in order to ignite wood?
  • WHAT TEMPERATURE WILL HEXANE BOIL IF THE SURROUNDING PRESSURE IS 150 MM Hg!! URGENT!?


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