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Utilize your recorded weight of cobalt (II) nitrate to compute the exact concentration of your stock cobalt (II) nitrate solution in the volumetric flask. I utilized 2.18 g of 0.15 M cobalt (II) nitrate to prepare as well as dissolve in 25mL of deionized water then added 35 more mL of rinsing to the volumetric flask. Explain what is the concentration?
Explain A common industrial unit for expressing the concentration of hydrogen peroxide is to state the relative volume of oxygen gas at 0 degrees Celsius as well as 1 atm, produced per volume of hydrogen peroxide solution that decomposes. Compute ..
Using the following thermochemical equation, determine the amount of heat produced per kg of CO2 formed during the combustion of benzene (C6H6). 2 C6H6(l) + 15 O2(g) ? 12 CO2(g) + 6 H2O(g) ?H°rxn = -6278 kJ
Determine the direction of a reaction in a solution containing initially 10-4M acetaldehyde, 0.1M ethanol, 0.1M pyruvate, and 10-2M lactate. What is the value of Gibbs' function for this reaction
CCl4 dipole-dipole dispersion ion-dipole ion-ion (b) CsBr dipole-dipole dispersion ion-dipole ion-ion (c) BaCl2 dipole-dipole dispersion ion-dipole ion-ion
The following reaction has an equilibrium constant of Kp = 3.5*10^4 at 1495 K: Br2(g) + H2(g) 2HBr(g). What is Kc for this reaction?
What is the FORMULA for the limiting reagent. What amount of the excess reagent remains after the reaction is complete. grams
What is the frequency of the photon emitted when a molecule of NaH drops from the second to first level?
The pH of 0.325g of aspirin (Molar mass 180.2) tablet in 0.5L water is 3.03, What is the pKa for weak, monoprotic acid aspirin? do not disregard x
Calculate the pre-equilibrium concentration of Fe3+(aq) in a solution made by mixing 2.8 mL of 2.010?3 M Fe(NO3)3 and 7.2 mL of 2.010?3 M NaSCN. Assume the final volume is 10.0 mL.
Write the net redox reaction that occurs in the galvanic cell. (1 pt) Zn(s) | Zn2+(aq) (1.00 M) || Pb2+(aq) (1.00 M)| Pb(s)
Draw the Newman projections and the corresponding potential energy diagram of n-butane conformers, rotating along C2-C3.
What is the composition in mole fractions of a solution that has a vapor pressure of 39 at 20 ? Express your answer using two significant figures.
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