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Typically, the concentration of hydronium, H+, or hydroxide,OH- , ions in an aqueous solution is less than 1M . It is not uncommon to have hydronium ion concentrations that are much smaller, such as 2.60*10^-5. , PH therefore, is a convenient way to restate the hydronium concentration. PH is equal to the negative log of a hydronium ion concentration in solution:
what would you expect to observe if KHCO3 reacted with H2SO4? what test would you perform to identify the product?
The liquid is allowed to stand in contact with the solid until equilibrium is achieved and then the liquid is poured off. What is the mass of solid remaining?
Consider a light-sensative reaction. What energy in joules per photon, is needed to drive the reaction if delta H of the reaction is equal to 793 kJ/mol. (Remember that there are Avogadro's number of photons per mole of photons.)
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M FeBr3, 0.6 M CaCl2, 0.5 M Ba(NO3)2, 0.2 M (NH4)2SO4, 0.9 M KOH
At the equivalence point of the titration of formic acid by NaOH, the pH of the solution is around 8 - 10. What would be a good indicator
How many grams of Cu(OH)2 will precipitate when excess KOH solution is added to 63.0 mL of 0.610 M CuSO4 solution.
Determine ΔSsys separately for the volume and temperature changes and show that ΔSsys=0 for a reversible adiabatic process. Also, if the expansion had instead occurred irreversibly against a constant external pressure of 1 atm
Calculate the equilibrium constant for the reaction
write the complete mechanism for the initiation and propagation steps using free radical notation for free radical notation mono-chlorination reaction of the alkane: 2, 4 - dimethylpentane.
What is the osmotic pressure of human blood at 37°C if human blood is isotonic to 0.16 M NaCl solution? Remember that NaCl almost completely ionizes in water.
You add 15.0 of iron to 25.5 of water and observe that the volume of iron and water together is 27.4 . Calculate density of iron.
calculate the theroretical yield of C2H5Cl when 123 g of C2H6 reacts with 220 g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl
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