Chemistry Questions and Answers

  • Calculate the pH of the solution that results from the addition of:?
  • calculate the pH?
  • calculate the pH?
  • Calculate the pH?
  • Calculate the pH?
  • Calculate the potassium ion conc. (in mol/L) in a sol. prepared by adding 124.7 mL of a 0.412 M KNO3 (aq) sol.
  • Calculate the quantity of heat released when 1 liter of water cools from 10 degrees C to 2 degrees C.?
  • calculate the ratio of moles of Ar to moles of N2 in air.?
  • Calculate the ratio of the concentration of carbonic acid to that of the bicarbonate ion?
  • Calculate the solubility in grams per liter of Ag2Cl2O7??
  • calculate the solubility of AgCl in g/L at 298 K in water and 0.2M of HCl.Ksp of AgCl=1.8*10-10mol2dm-6?
  • Calculate the solubility of solid CaF2(ksp + 4.0x10E-11) in a 0.025M NaF solution?
  • calculate the standard entropy change (J/mol-K).?
  • Calculate the standard entropy change (J/mol-K).?
  • Calculate the standard entropy change (J/mol-K).?
  • Calculate the standard entropy change (J/mol-K).?
  • calculate the standard free energy change (kJ/mole) from the standard free energies of formation.?
  • calculate the standard free energy change (kJ/mole) from the standard free energies of formation.?
  • Calculate the standard free energy change (kJ/mole) from the standard free energies of formation.?
  • calculate the standard free energy change (kJ/mole) from the standard free energies of formation?
  • calculate the standard free energy change (kJ/mole) from the standard free energies of formation?
  • calculate the standard free energy change.?
  • calculate the standard...?
  • Calculate the sublimation temperature (Kelvin).?
  • calculate the theoretical percent water in the following hydrates: nickel (II) heptahydrate?
  • Calculate the total pressure in the container at equilibrium.?
  • calculate the value of [H] in an HOBr solution that has a pH of 4.95?
  • calculate the value of Ka for acetic acid?
  • Calculate the volume 200g of ammonia will occupy at 285 and 104.5kPa?
  • Calculate the volume of 0.5M NaOH that will be required to titrate a 0.15 g sample of aspirin.?
  • Calculate the volume of H2 (g) expressed at STP, required to react with 3.00 L of CO at STP in the following:?
  • Calculate the volume percentage of helium in this question.?
  • Calculate the wavelength of a wave with 5 * 10 ^-20 KJ of energy?
  • Calculate vapor pressure and mole fraction?
  • Calculate wavelength, in m, of an electron moving at a speed of 5.73 x 10 6 m/s.?
  • Calculate ΔSuniv in J/mol-K at 298.15 K?
  • Calculatethe boiling point of a 0.100 m solution of a non-volatile non-electrolyte solute in acetone.?
  • Calculating [OH-] for solutions at 25 degrees celsius?
  • Calculating change in entropy universe?
  • Calculating concentration? Only with KSP!?
  • Calculating concentrations with a given value of K?
  • Calculating Empirical formulae?
  • calculating energy absobed?
  • calculating enthalpy?
  • calculating equilibrium concentration question?
  • Calculating equilibrium constant?
  • Calculating ion concentrations given grams of two compounds and a final volume?
  • Calculating moles - how do I work out moles when I know something is 5% w/v in 12cm3 of solution?
  • Calculating Moles?
  • Calculating partial pressure and volume?
  • Calculating pH given only concentrations?
  • calculating pH?
  • Calculating the hardness of water?
  • Calculating the number of grams?
  • Calculating the number of moles of each reactant?
  • Calculating the pH ??
  • Calculating the pKb?
  • Calculating the third Kc?
  • Calculating the weight %?
  • calculation of % P2O5 in KH2PO4 sample,calculation of theoretical % P2O5 in KH2PO4 sample.?
  • Calculation of [OAc-] from pH.?
  • calorie/chemistry help!?
  • Calorie/Heat problem!!?
  • Calorimeter Design?
  • calorimeter's heat capacity?
  • calorimetry?
  • Calucating the pKa?
  • calulate the pH of a .500 M aqueous solution of NH3. The Kb of NH3 is 1.77*10-5.?
  • Camphor Question?
  • Can (Na2)(NO3)3 exist and if so what is its name?
  • can a balloon be filled with vinegar and baking soda and then inflate with carbon dioxide?
  • Can a single iron atom be magnitized?
  • Can a solute be gas, solid or liquid??
  • Can acetic acid be a buffer?
  • Can acetone be used as a solvent for the amino acid tryptophan?
  • can air be converted to liquid?
  • Can aluminium b quenched and tempered like iron??
  • can ammonium acetate pass through the membrane?
  • Can an addition reaction occur between chlorine and ethane?
  • can an alcohol off of an acetal be hydrolyzed?
  • can an etched surface of silicon be approximated as a negatively charged planar polyion?
  • Can any bio/chem fans help me out here?!?
  • Can any body tall me the specific gravity of olein at 25 and 50 C?
  • can any one explain the orbital diagram?
  • Can any one help mwe with this q please?
  • can anybody explain in a very simple way how to compute henderson-hasselbach equation and pls. give an exampl
  • can anybody please help me with chemistry??
  • Can anybody please help me with this Chemistry Problem?
  • can anybody tell me about the destribution of a solute between 2 immisicible solvents and the disribution coef
  • Can anybody tell me the reaction equation between oxalic acid and potassium permanganate?
  • Can anyone balance these equations?
  • can anyone balance this equation for me please?
  • Can anyone compare the composition of binary ionic and binary molecular compounds for me please??
  • can anyone do this quiz?
  • can anyone explain how polyacrylonitrile, PAN can be a crystallizable atactic polymer?
  • Can anyone explain how to find final molar concentrations for this reaction?
  • Can anyone explain orbital pi and sigma bonding stuff?
  • can anyone explain step by step?
  • Can anyone explain that...?
  • Can anyone explain why silver chromate is soluble in dilute nitric acid using chemical equations?
  • Can anyone find me a mnemonic phrase for the Actinide elements?
  • can anyone give me a detailed summary of what forensics is and everything about it?
  • Can anyone give me a sample problem of Geometry I?
  • Can anyone give me an equation for when hydrocarbons react with nitrogen oxides...?
  • Can anyone help me on this question?
  • Can anyone help me with some chemistry?
  • Can anyone help me with this chemistry problem?
  • Can anyone help me with this chemistry question?
  • Can anyone help me? I need help trying to figure out these words because our teacher won't let us use our book
  • can anyone help with this equilibrium problem?
  • can anyone list the properties of valence electrons?
  • Can anyone make me a rhyming poem on Sulfur?
  • Can anyone name these compounds?
  • Can anyone names some animal and plant toxins?
  • Can anyone please help me find an article on Carbon?
  • Can anyone please tell me what the physical properties of sand, salt, paper and iron are?
  • can anyone plz do this chemistry quiz? am just stuck wiv it?
  • can anyone plz help me with this question " Keep getting the wrong answer"?
  • can anyone plz solve this i keep getting the wrong answer?
  • Can anyone tell me about Ernest Rutherford??
  • Can anyone tell me how to find out chemical activity? And what elements does potassium form compounds with?
  • can anyone tell me how to solve this question step by step?
  • can anyone tell me if sindanyo was used in the making of analytical balances back in the seventies?
  • Can anyone tell me reaction in which O3 (Ozone Gas) forms ?
  • Can anyone tell me some everday mixtures to separate?
  • Can anyone tell me the covalent bonding of ethylene and CO2?
  • Can anyone tell me the molecular weight of acetone, MEK, and Isopropyl alcohol??
  • Can anyone tell me the reaction that occurs between NH3 and Nox to form H2O and NO2?
  • Can anyone tell me the structure of formic acid (CHOOH) in Water (H2O)?
  • Can anyone tell me where i can find a good((free) Physics and Chemistry site for A-level full course?
  • can anyone tell me where the element IODINE is most commonly found?
  • Can anyone write out the reactants and predict the product??
  • can cautic soda harm pvc pipe?
  • Can charcoal be converted to diamond by pressure from a high explosive charge?
  • can chloroform be made from household chemicals?
  • can citric acid tablet be made without adding binder?
  • can colloidal foods be absorbed directly by the intestinal wall? why?
  • can crystals record data?
  • Can diamonds be prepared artificially from other allotropes of carbon?
  • Can DMSO (a type of solvent) dissolve very fine particle of Hydroxyapatite (HAp)?
  • Can flatulence be measured in parts per million? If so, what is the average amount?
  • Can formalin be recovered from fossils?
  • Can I make a mylar balloon from latex balloon?
  • Can I make liquid soap out of bar soap?
  • can i make liquid ultracaine in to powder?
  • can i put out FIRE WITH ICE CUBES ONLY? ??? (strictly no liquid water!!)?
  • can india win world cup?
  • Can it be, ever, possible to transfer a persons mind onto a electronic chip or something like that?
  • can it happen the minus kelvin temperature go?
  • Can metal detectors really tell the difference between gold and other metals??
  • can metals be brittle?
  • can mixing GHB with tea alter the GHB?
  • Can nonmetals, i.e. elements that form anions, have ionization energies? Why?
  • Can novocaine be synthesized from a carboxylic acid and an amino alcohol?
  • Can One Balance this equation?
  • Can Oxygen freeze?
  • Can P form PH5?amphoteric,basic or acidic is H2S,AlH3,PH3? Can Li form super&peroxides?
  • Can Radon gas evaporate from water?
  • Can RCOOH react with RCOO- ?
  • Can salt fasten the heating process of water?
  • Can soap be made from coconut oil and NaOH containing wood chips?
  • Can soap be made without lye.?
  • Can soft water actually dissolve calcium deposits?
  • can some body Expalin what they meant here one by one ?
  • Can some one help me understand electron configurations? Please help with anything u can.?
  • Can some one help me with Chemistry?
  • Can some one please explain how valence electrons relate to bonding?
  • Can some one tell me what is the chemical formula of Vinegar?
  • can some1 describe how the carbon atoms form a giant macromolecule for diamond and graphite plz?
  • can some1 give me an example of a metallic bond?
  • Can some1 tell me how these are drawn?
  • Can somebody describe to me, how can we find the heat capacity of substances in liquid state?
  • Can somebody give me a good website with chemistry CURRENT events?
  • Can somebody help me with a few question I need to research for my chemistry class on?
  • Can somebody help me with chemical formulas and chemical compounds?
  • Can somebody help me with this College Chem question about coordination compounds?
  • Can somebody please answers these two questions pertaining to chemistry?
  • can somebody tell me four uses of each of the elements?
  • Can somebody work through this chem 1 problem and show me how to do it?
  • Can someone balance this equation please?
  • Can someone describe the role of water in dissolving Potassium Iodide?
  • Can someone describe to me athe process of suspended animation?
  • Can someone explain how to draw a structural formula?
  • Can someone explain the periodic table for me? Like what are the groups and stuff??
  • can someone explain to me how to answer this question?
  • can someone explain to me how to solve this problem?
  • Can someone explain to me how to write the equation for the decomposition of a hydrate?
  • Can someone explain what the numbers on the inside of rings mean?
  • can someone give me a DETAILED explanation of what exactly forensics is?
  • Can someone give me a general definition of activity and what it is used for? I am only in general chem . . .
  • Can someone give me an equation for the reaction of glycine and nitrous acid?
  • Can someone give me some help writing the ionic equation for an acid-base rxn?
  • Can someone give me the list of scientists that involved in development of periodic table ?
  • can someone help calculate the atomic number of protons, neutron and electron of this following atom cl,c.?
  • Can someone help me find q of extracting Pb1+ from 1.44 Kg. of PbS?
  • Can someone help me i need to make these even CaOH+CO2>CaCO3+H2O
  • Can someone help me to solve this Chemistry problem and explain how?
  • Can someone help me with a chemistry homework problem?
  • Can someone help me with a chemistry question?
  • Can someone help me with Chemistry (limiting reactants & percent yield)?


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