Chemistry Questions and Answers

  • Boiling Point and Freezing Point...?
  • Boiling Point Elevation/Freezing point?
  • Boiling Point of Alkyl Halides? Urgent?
  • Boiling Point Question. Check my Work!!?
  • Boiling point question?
  • Boiling Point?
  • Boiling points-?
  • Boiling water?
  • Boltzmann Distribution question?
  • Bomb Calorimeter Equation?
  • Bomb out of sparklers?
  • bond angles, shape of C2H6 and why?
  • bonding agents for pressing pills?
  • bonding question?
  • Bonding question?
  • Boron has two naturally-occurring and stable isotopes what do they look like?
  • Boron? how to find the atomic weight?
  • bottle of wine , 12.5% ethanol by volume.density .789 g/cm3, what is the solvent, grams of solute/solution?
  • boyles law deals with the effect of temperature on the volume of gas - true or false?
  • BRAFORD ASSAY!! lab?
  • Breathing.......?
  • Breeder ractors are used to convert nonfissionable nuclide 238over92 U to a fissionable product.?
  • BRIEFLY describe how reverse osmosis is used to purify sea water?
  • Bubbles of gas often form in tap water when left at room temperature. Do you think this gas is water vapor or?
  • buffer acid base help?
  • buffer question, pls help?
  • Buffer regions for polyprotic acid?
  • buffer solution HELP!?
  • Buffer solutions?
  • Buffer Solutions?
  • Buffered solutions?
  • Bunch of questions about Glycoside Hydrolase. Please help!?
  • Bunsen Burner Questions?
  • Burning Paper/Plastic?
  • burning/energy/heat problem?
  • butane collected over water; temp 25C, .95atm what is Partial pressure of butane in graduated cylinder 100mL?
  • Butyric acid?
  • By calculating the free energy change determine whether the following reaction?
  • By calculating the free energy change determine whether the following reaction is spontaneous at 298K?
  • By calculating the free energy change determine whether the following reaction?
  • By what factor does [OH-] change when the pH increases ...?
  • By what process can octane be converted into 2,2-dimethylhexane?
  • C(30)H(62) is a nonpolar compound that is solid and water is highly hydrogen-bonded but isn't, why?
  • c.How long does salivary digestion continue in the stomach?
  • C18 HPLC column?
  • C20H41OH is an alcohol.State and explain whether the alcohol is a solid,liquid,or gas at room temperature.?
  • C2H4O2 + NaOH yields??
  • C6H14 how to draw isomer structures??
  • C6H14 how to draw resonance structures??
  • c6h8no4p ---what chemical formula is this and how does its diagram look like?
  • Calcium carbonate reacts with dilute hydrochloric acid to produce carbon dioxide.?
  • calcium hydroxide and hydrogen = ?
  • Calcualte the # of moles of Al2O3 that are peoduced when 0.60 mol of Fe is peoduced in the following reaction.
  • Calculate Kp at this temperature for the reaction?
  • Calculate Kp at this temperature for the reaction?
  • Calculate Kp at this temperature for the reaction?
  • Calculate Kp at this temperature for the reaction?
  • Calculate Kp for the reaction...Please!!?
  • Calculate Kp for the reaction: 2H2S(g) + SO2(g) = 3S(s) + 2H2O(g)?
  • Calculate Kp for the reaction?
  • Calculate Kp for the reaction?
  • Calculate Kp for the reaction?
  • Calculate Kp for the reaction?
  • Calculate Kp for the reaction?
  • Calculate [ H + ] of a 0.210 M solution of Aniline C6H5NH2 Kb = 7.40e-10?
  • Calculate [ H + ] of a 0.270 M solution of Aniline C6H5NH2 Kb = 7.40e-10?
  • Calculate [ H + ] of a 0.310 M solution of Hydroxylamine HONH2 Kb = 1.10e-8?
  • Calculate [ H + ] of a 0.310 M solution of Hydroxylamine HONH2 Kb = 1.10e-8?
  • Calculate [ H + ] of a 0.340 M solution of Aniline C6H5NH2 Kb = 7.40e-10?
  • Calculate [ H + ] of a 0.370 M solution of Hydroxylamine HONH2 Kb = 1.10e-8?
  • Calculate [ H + ] of a 0.380 M solution of Hydroxylamine HONH2 Kb = 1.10e-8?
  • Calculate [ H + ] of a 0.400 M solution of Aniline C6H5NH2 Kb = 7.40e-10?
  • Calculate [ OH - ] of a 0.220 M solution of Hydroxylamine HONH2 Kb = 1.10e-8 ?
  • Calculate [ OH - ] of a 0.270 M solution of Hydroxylamine HONH2?
  • Calculate [ OH - ] of a 0.330 M solution of Pyridine C5H5N Kb = 1.70e-9?
  • Calculate [ OH - ] of a 0.380 M solution of Aniline C6H5NH2 Kb = 7.40e-10?
  • Calculate [H], [OH] and ph for a solution of 49.9 mL concentrated HCl and 18.4 mL concentrated HNO3 and 1L H2O
  • Calculate [H+]?
  • Calculate Binding Energy...?
  • calculate concentration?
  • calculate delta H for the reacton HCl + CH(g) --> CH3Ch2Cl(g)?
  • Calculate entropy universe in J/mol-K at 298.15 K?
  • Calculate Kc for the reaction at this temperature. 4 NH3(g) + 3 O2(g) <---> 2 N2(g) + 6 H2O(g)?
  • Calculate Kc for the reaction at this temperature. H2(g) + I2(g) <-----> 2HI(g)?
  • calculate Kp at the same temperature?
  • calculate Kp at the same temperture?
  • calculate Kp at the same temperture?
  • calculate Kp at the same temperture?
  • Calculate Kp at this temperature for the reaction ?
  • Calculate Kp?
  • Calculate number of moles of hydrogen produced if there are 3.7 moles of sodium?
  • Calculate OH and pH for?
  • Calculate pH of sol prepared by adding .296g HCl to 250mL H20?
  • Calculate the atomic mass of the element having the following distribution of isotopes.?
  • calculate the average atomic mass of chromium. its composition is: 83.79% with a mass of 51.94amu?
  • calculate the change in free energy (kJ) for the reaction NO(g)+O3----NO2(g)+O2(g)?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the change in free energy (KJ) for the reaction?
  • Calculate the composition of the vapor (in terms of mole fractions)?
  • Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.?
  • calculate the concentration of the H^3O+ and OH- ions in an aqueous solution of pH 5.0?
  • Calculate the concentration?
  • Calculate the concentrations of all species present in a 0.29 M solution of ethyleneammonium chloride?
  • Calculate the empirical formula of the compound whose composition is 56.4% Mn and 43.6% S.?
  • Calculate the energy of one photon of yellow light whose wavelength is 589 nm?
  • Calculate the enthalpy of hydration (KJ) of 0.670 moles of CsOH?
  • Calculate the enthalpy of hydration (KJ) of 1.150 moles of CsI.?
  • Calculate the enthalpy of hydration (KJ) of 1.150 moles of CsI.?
  • Calculate the enthalpy of hydration (KJ) of 0.750 moles of CsI.?
  • Calculate the enthalpy of solution (KJ) of 0.670 moles of KCl.?
  • Calculate the enthalpy of solution (KJ) of 1.090 moles of KCl.?
  • Calculate the enthalpy of vaporization.?
  • calculate the equilibrium concentration of NH3 (mol/L).?
  • Calculate the final pH when the following pair of solution is mixed.?
  • Calculate the formula mass?
  • Calculate the freezing point of 50% aqueous soln of ethylene glycol [C2H4(OH)2]?
  • calculate the freezing point of a 0.2 m CaCl2 aqueous solution, assuming it dissociates completely to form ion
  • Calculate the heat required to convert 27.3 g of C2H6O, from a solid at -140oC into thegaseous state at 102oC
  • Calculate the heat liberated when .200 mole of Ba(OH)2 reacts with excess HCl if:?
  • Calculate the increase in Temp.?
  • Calculate the kilojoules for 2NH3+Cl2->N2H4+2HCl?
  • calculate the longest possible wavelength, in nanometers, of light that can ionize the metal.?
  • Calculate the mass in grams of hydrogen chloride produced when 5.6 L?
  • calculate the mass of 600ml of helium if the density is 0.0002g/ml?
  • Calculate the mass of Na2Cr2O7 to dissolve in 200g of water to prepare 1.5 m Na2Cr2O7(aq) solution.?
  • Calculate the mass of Na2Cr2O7 to dissolve in 200g. of H2O to prepare 1.5% by mass Na2Cr2O7(aq) solution.?
  • calculate the mass of the given element in each of the following compounds?
  • Calculate the molalities of the following aqueous solutions?
  • Calculate the molality of each of the following solutions.?
  • Calculate the molality of the solute.?
  • Calculate the molality of the solute?
  • Calculate the Molar Absorptivity?
  • Calculate the molar concentration of OH- ions in a 0.050 M solution of C2H5NH2, (Kb = 6.4 x 10-4).?
  • calculate the molar mass of a gas that diffuses three times faster than oxygen?
  • Calculate the molar mass of magnesium chloride, MgCl2.?
  • Calculate the molarity and the molality of an NH3 solution made up of 25.0 g of NH3 in 70.0 g of water.?
  • Calculate the molarity of the solute?
  • Calculate the molarity: 40 grams of sodium hydroxide (NaOH)?
  • Calculate the most probable speed and average kinetic energy per mole for each of the following.?
  • Calculate the normal boiling point (Kelvin).?
  • calculate the number of molecules in 16 g O2 and 288g of Cl2?
  • calculate the number of moles of HCl that must be added to 1L of 1M NaC2H3O2 to produce solution at pH:pKa&4.2
  • Calculate the percent composition of K in potassium chlorate..?
  • Calculate the percent ionization in a solution of 0.10 M NH3?
  • Calculate the percent ionization of benzoic acid at the following concentrations?
  • Calculate the percent ionization of hydrofluoric acid at 0.60 M:?
  • calculate the percentage of water in each of the following hydrates.?
  • Calculate the pH after 0.13 mol of NaOH is added to 1.00 L of 0.60 M HF and 1.04 M KF?
  • calculate the pH at the stoichiometric point of the titration of 25.00 ml of 0.020M NH3 with 0.015 HCL (AQ)?
  • calculate the pH during titration??
  • Calculate the pH for .250M Ca(OH)2?
  • Calculate the pH for .455 M HNO3?
  • Calculate the pH for a titration of 0.20M CH3COOH (aq) with 0.20 M NaOH (aq)?
  • Calculate the pH of .100M of H2CO3?
  • Calculate the pH of 0.100 M H2CO3?
  • Calculate the pH of a 0.100 M solution of NaNO2?
  • Calculate the pH of a 0.120 M solution of NaNO2?
  • Calculate the pH of a 0.130 M solution of NaNO2??
  • Calculate the pH of a 0.190 M solution of NaNO2?
  • Calculate the pH of a 0.190 M solution of NaNO2?
  • Calculate the pH of a 0.190 M solution of NaNO2?
  • Calculate the pH of a 0.200 M solution of NaNO2?
  • Calculate the pH of a 0.380 M solution of NH4I?
  • Calculate the pH of a 0.380 M solution of NH4I?
  • Calculate the pH of a 0.390 M solution of NH4I?
  • Calculate the pH of a 0.420 M solution of NH4I?
  • Calculate the pH of a 0.430 M solution of NH4I?
  • Calculate the pH of a 0.450 M solution of NH4I ?
  • Calculate the pH of a 0.460 M solution of NaOCl?
  • Calculate the pH of a 0.470 M solution of NaOCl?
  • Calculate the pH of a 0.490 M solution of NaOCl?
  • Calculate the pH of a .44M solution of NaOCl with a congjugate acid Ka of 3.5x10-8.?
  • Calculate the pH of a 0.010M solution of NaCN. The Kb of CN- is (2.1)(10^-5)?
  • Calculate the pH of a 0.0316 M solution of the strong base RbOH?
  • Calculate the pH of a 0.430 M solution of NH4I; i have no idea how to attempt this.?
  • Calculate the pH of a 0.59 M CH3COONa solution.?
  • Calculate the pH of a 3.26 x 10-8 M solution of HBr.?
  • Calculate the pH of a buffer solution that is 0.04 M NH4Cl (aq) and 0.030M NH3 (aq?
  • Calculate the pH of a buffer solution?
  • Calculate the pH of a mixture containing equal volumes of .140M NH4Cl and .14M NH3.?
  • Calculate the pH of a mixture containing equal volumes of?
  • Calculate the pH of a mixture containing equal volumes of?
  • Calculate the pH of a mixture containing equal volumes of?
  • Calculate the pH of a mixture containing equal volumes of?
  • Calculate the pH of a mixture containing equal volumes of?
  • Calculate the pH of an acetic acid and sodium acetate solution?
  • 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 resulting when 10.00 ml of 0.150 M NaOH (aq) is added to 25.00 ml of 0.100 M?
  • Calculate the pH of the solution resulting when 10.00 ml of 0.150 M NaOH (aq) is added to 25.00 ml of 0.100 M?
  • Calculate the pH of the solution that results from the addition of 0.030 moles of?
  • Calculate the pH of the solution that results from the addition of 0.040 moles of HNO3 to a buffer?
  • Calculate the pH of the solution that results from the addition of 0.040 moles of HNO3 to a buffer made


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