Chemistry Questions and Answers

  • Calculate the number of moles of:?
  • Calculate the partial pressure in mmHg of the four main gases in the air: N2, O2, Ar, CO2. Their relative abu
  • Calculate the percent ionization of nitrous acid in a solution that is 0.222 M in nitrous acid and 0.278 M ...
  • Calculate the percent yield (%)?
  • Calculate the percent yield?
  • Calculate the percentage of water of hydration?
  • Calculate the pH of 0.10 M KNO2 (aq). Ka for HNO2 is 4.3 x 10 ^ -4?
  • Calculate the pH of a solution containing 0.818M acetic acid, Ka=1.76x10^(-5) and .172M sodium acetate.?
  • Calculate the pH of a 0.32M solution made from a weak acid with pKa of 4.245??
  • Calculate the pH of a 0.63 M NH4Cl solution. For NH3, Kb = 1.8 x 10^ -5?
  • Calculate the pH of a buffer solution prepared by dissolving 21.46 g of benzoic acid ( HC7H5O2) and 37.68 g of
  • Calculate the pH of a solution 0.818M acetic acid, Ka=1.76x10^(-5) and 0.172M sodium acetate.?
  • Calculate the ph of a solution of 10.0 ml of .22M KOH after dilution to 250 ml?
  • Calculate the pH of a solution that is .60M HF and 1.00M KF?
  • Calculate the pH of each of the following solutions.(Kb= 1.1e-8).?
  • Calculate the pH of the buffer?
  • Calculate the pH of the solution before and after the addition of NaOH.?
  • Calculate the pH ofa 0.0001M solution of the strong acid, HCI?
  • Calculate the pH?
  • Calculate the quantity of heat required to raise the temperature of one gallon of water ( 3.78liters) from?
  • Calculate the solubility (in moles per liter) of Fe(OH)3 (Ksp = 4 10-38) in each of the following.?
  • Calculate the solubility in moles/liter of Cu(OH)2 at 25C?
  • Calculate the solubility of Fe(OH)3?
  • Calculate the standard cell potential (electromotive force) in volts?
  • Calculate the standard free energy change in kJ/mol?
  • Calculate the standard free energy change in kJ/mol?
  • Calculate the value of the equilibrium constant, Keq , for the following reaction at 298 Kelvin.?
  • Calculate the value of the equilibrium constant, Keq , for the following reaction at 298 Kelvin.?
  • Calculate the value of the equilibrium constant, Keq , for the following reaction at 298 Kelvin.?
  • Calculate the value of the equilibrium constant, Keq , for the following reaction at 298 Kelvin.?
  • Calculate the value of the equilibrium constant, Keq?
  • Calculate the value of the equilibrium constant, Keq , for the following reaction at 298 Kelvin.?
  • Calculate the value of the equilibrium constant, Keq , for the following reaction at 298 Kelvin.?
  • Calculate the volume of KCl, for lab?
  • Calculate the wavelength of an electron travelling at 5.11 107 ms-1.?
  • Calculate the wavelength of the spectral line produced in the hydrogen spectrum?
  • Calculate the wavelength, in nanometers ...?
  • Calculate the weight of iron which will be converted into its oxide by the action of 18 grn of steam?
  • Calculate(show process)a)molality b)molarity c)mole frac. of KI if dnsity of 20%(mass/mass)aq. KI is1.202g/mL
  • Calculating concentrations of constituent ions in CaCl2 solution?
  • Calculating Delta H for a reaction?
  • Calculating Delta H?
  • Calculating free energy with standard cell potential?
  • Calculating grams, moles in the reaction?
  • Calculating Ka for a weak acid when ph and molality are known.?
  • Calculating Keq using 螖G?
  • Calculating Kp and Kc?
  • Calculating Kp and Kc?
  • Calculating mass of silver nitrate..?
  • Calculating molar Solubility of a saturated solution?
  • Calculating number of CO2 molecules and weight during reaction?
  • Calculating partial pressures between NO and O2?
  • Calculating pH of a solution?
  • Calculating pH.?
  • Calculating pH?
  • Calculating pKb.?
  • Calculating the # of calories of heat energy?
  • Calculating the [OH-] using the pOH?
  • Calculating the final temperature?
  • Calculating the initial concentration of a weak acid?
  • Calculating the Kb value of an unknown base?
  • Calculating the mass of silver produced from the reaction of 6.35 g of copper according to the reaction:?
  • Calculating vapor pressure?
  • Calculating Work Done On A System(Wsystem).?
  • Calculation?
  • Calculation?
  • Calculations problem...help!!!...mayday?
  • Calculations with a chemical reaction. help me balance sodium carbonate solution and calcium chloride solution
  • Calling all chemistry geniuses.?
  • Calorimetry Done?
  • Calorimetry...?
  • Camphor value?
  • Can 2 solid phases co-exist at equilibrium?
  • Can a Casio fx-7400G Plus calculator solve matrices?
  • Can a diluted solution be saturated? Yes, but explain?
  • Can a electromagnet float using the meissner effect?
  • Can a pistol blow up a car?
  • Can a solution with undissolved solute be supersaturated?
  • Can an chemical reaction involve more than one activated complex? Explain.?
  • Can an insoluble ionic compound be electrolytic?
  • Can any O-Chemistry buffs tell me if you can hydrogenate the double bond in one of the rings of cholesterol?
  • Can any one explain dilution and concentration of liquids, or a good site to find info on thank-you.?
  • Can Any one explain me Otto Hahn's Experiment using Uranium?
  • Can any one help with chemistry?
  • Can any one tell me hoe to draw 75 isomers of decane?
  • Can any one tell me if glass detoriates in high / low pH?
  • Can any radioactive isotope fission?
  • Can any tell me how to do this chemistry problem?
  • Can any1 help me balance this equation? Al(OH)3 + HNO3----------------------> H2 + KOH?
  • Can any1 plz help me with this fluorine question!!!???
  • Can anybody calculate this?
  • Can anybody help me? Please?
  • Can anybody help with Chemical Equilibium?
  • Can anybody provide me with a simple method on how to test for cations and anions?
  • Can anybody recommend a good way of cleaning volumetric flasks?
  • Can anybody tell me if all types of honey crystalize , and why it happens?
  • Can anybody think of a slogan for the element fluorine?
  • Can anyone answer any of these questions?
  • Can anyone answer/?
  • Can anyone balance these chemical equations??
  • Can anyone balance these equations?
  • Can anyone check this answer on soubility?
  • Can anyone design a simple experiment to create global warming???
  • Can anyone draw the following structure(s) :Propyl Cyclohexane, 1-ethyl-3-methyl benzene, Butyl Cyclohexane?
  • Can anyone explain to me about atoms, electrons, protons and neutrons .... as well as ions???
  • Can anyone get this practice chemistry ?n?
  • Can anyone give an example of the use of UV spectroscopy to monitor a biochemical process?
  • Can anyone give me list of NABL approved labs in INDIA.?
  • Can anyone give me more information about this lab experiment?
  • Can anyone help me make up a slogan for the element Lead?
  • Can anyone help me solve a chemistry problem involving Ksp..?
  • Can anyone help me w/ chemistry!!!?
  • Can anyone help me with chemistry?Dot and cross diagrams and shapes of molecules?
  • Can anyone help me with the birth of elements?
  • Can anyone help me with these please?
  • Can anyone help me with this buffer question and finding its pH??
  • Can anyone help me with this Chemistry question?
  • Can anyone help me with this equation?
  • Can anyone help me with this please? i did it before but they were wrong?
  • Can anyone help me with this qn? Molecular shapes of ICl5?
  • Can anyone help me with this qn? Molecular shapes of ICl5?
  • Can anyone help with a lab write up. production of hydrogen by replacement?
  • Can anyone help!please?
  • Can anyone make up a clever slogan for the element~Boron?
  • Can anyone please name some mild alkalies, and please no formulas, but with general names?
  • Can anyone please solve the Stoichiometry question with work?
  • Can anyone please teach me how to balance the following chemical equation?
  • Can anyone solve these Stoichiometry problem with work?
  • Can anyone solve these Stoichiometry problem with work?
  • Can anyone solve these Stoichiometry questions with work?
  • Can anyone solve these Stoichiometry questions with work?
  • Can anyone solve these Stoichiometry questions with work?
  • Can anyone solve this chemistry problem?
  • Can anyone solve this molarity problem?
  • Can anyone suggest a good reference source about buffer systems for controlling the pH of cosmetic formulae?
  • Can anyone suggest a quick easy way to make biodiesal?
  • Can anyone teach me how to solve a chemistry problem?
  • Can anyone tell me about the chemistry behind epoxy bond?
  • Can anyone tell me all the orbit of electrons?
  • Can anyone tell me and show me proof of the word "nothing" please give me a reasonable explanation for nothing
  • Can anyone tell me the best way to calculate the euilibrium constant please?
  • Can anyone tell me what is meant by 20-volume of hydrogen peroxide?
  • Can anyone tell me what types of reactions these are?
  • Can anyone tell me why does a charge have a field around it? In simple terms please.?
  • Can anyone write the balanced chemical equation for the dissociation of Cu(OH)2 (s) in aqueous solution?
  • Can aqueous calcium chloride conduct electricity when dissolved in a solution.Please post a reliable source.?
  • Can barium sulphate be used in the body?
  • Can CH3F, CH2Cl2, or XeCl2F2 have isomers?
  • Can chloral hydrate be made at home?
  • Can chromatography be used to test if sugar crystals are pure?
  • Can clouds catch fire?
  • Can Cr displace H+. Explain your answer?
  • Can earthworms especially Eisenia fetida survive in EDTA?
  • Can heavy fuel oil be refined into kerosene?
  • Can HNO3 be made by electrolysis of KNO3 solution?
  • Can Human hair be used as a fertilizer?
  • Can hydrogen peroxide be evaporated and used to enhance combustion?
  • Can hydroxyapatite be combined together with fluoroapatite & chloroapatite in its molecule?
  • Can hydroxyapatite be degraded naturally?
  • Can hydroxyapatite be used to make artificial teeth?
  • Can i buy pure ephedrine in europe?
  • Can I cut salt from any food?
  • Can i have some help with this equation?
  • Can i knew some examples of second order reaction in chemical industry?
  • Can i shoot this all over you...?
  • Can I use a petri dish to find bacteria in a soda?
  • Can i use pepsi instead od diet coke for the mentos and diet coke rocket??
  • Can iron be turned into gold by means of a nuclear reaction?
  • Can Lead really be turned into gold?--No really.!?
  • Can ne one answer!?
  • Can Ozone be replenished artificially?
  • Can Ph=0??
  • Can plants live without Carbon Dioxide?
  • Can Rock Candy Melt In Liquid Or Water?
  • Can salt peter be made at home with simple supplies?
  • Can silver and limestone be in the same place?
  • Can Sodium metal be produced from molten NaOH.?
  • Can some help me, explain chemical mechanism for detecting indole use kovacs in bacteria culture?
  • Can some one do my chemisty home work for me?
  • Can some1 plz help me calculate the volume in cm^3 of the conc reagant: 10 M HCL to make 200 cm^3 0.4 M HCL?
  • Can some1 plz help?
  • Can somebody help me with a Chemistry question?
  • Can somebody help me with some Chemistry questions?
  • Can somebody help me write an equation?
  • Can somebody list all the chemical elements that are poisonous?
  • Can somebody list down the usage of hydroxyapatite in medical purposes? Thanks!?
  • Can somebody please write me an introduction 4 the element copper???
  • Can somebody pls explain to me the step by step process of problem solving with dimensional analysis chemistry
  • Can somebody tell me a good website about chemistry to help me further understand it? Please and thank you!!!!
  • Can someone answer this Chemistry Question about Neutralization?
  • Can someone answer this question or give me a website about this question.?
  • Can someone balance this equation for me? NH4OH + H2SO4 ---> (NH4)2SO4 + H2O?
  • Can someone calculate these for me?
  • Can someone calculate this for me i dont have a scientific calculator?
  • Can someone direct me to the 1994 Advanced Placement Chemistry Multiple Choice Answers?
  • Can someone explain hydrolysis in an understandable format?
  • Can someone explain oxidation and emulsion?
  • Can someone explain oxidation reduction to me in simple terms? Have test tonite so I need answers ASAP! Thanks
  • Can someone explain salt hydrolysis to me?
  • Can someone explain this hybrid orbital chem problem?


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