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Write the chemical equation for the dissociation of the salt into its ions. Write the expression for Ka or Kb and give the value of Ka or Kb 1. 1.0M NaC2H3O2 pH=7.45 2. 1.0M NaHCO3 pH=8.60 3. 1.0M Na2CO3 pH=11.62 4. 1.0m NH4Cl pH=3.98
what is the total pressure in the reaction flask at the end of the reaction? What are the partial pressures of the gases in the flask? 6A(g) + 2B(g) %u2192 2A3B(g)
the pH of the two equivalence points and the volume
Electromagnetic radiation with a wavelength of 425 nm appears as violet light to the human eye. The energy of one photon of this light is 4.68 × 10-19 J. Thus, a laser that emits 1.3 × 10-3 J of energy in a pulse of light at this wavelength produc..
calculate the pH of the solution that results when 40.0 mL of 0.100 M NH3 is mixed with 20.0 mL of 0.100 M HCl solution
The reaction described in Part A required 3.50L of calcium chloride. What is the concentration of this calcium chloride solution
Calculate the amount of heat required to heat a 3.8kg gold bar from 27 degree celsius to 63 degree celsius.
A 25.95 -g sample of methanol at 35.6°C is added to a 38.65-g sample of ethanol at 24.7°C in a constant pressure calorimeter. If the final temperature of the combined liquids is 28.5°C and the heat capacity of the calorimeter is 19.3 J/°C, determi..
15.0 mL of 0.50 M NaOH is added to a 100.-mL sample of 0.376 M NH3 (Kb for NH3 = 1.8 x 10^-5. What is the equilibrium concentration of NH4^+ ions? The answer is 9.0 x 10^-5 M.
Describe in detail(ex:individual resins used, etc) the purification of a protein from bovine liver that has the following characteristics
Given a free energy change for a reaction of -0.125 kcal/mol, what is the equilibrium constant at 18 degrees C (r=8.314 J/mol*K)
compound of carbon and oxygen contains 3.00g of carbon and 8.00g of oxygen, what is the mass percent of carbon in the compound?
The general molecular formula for alkanes is CnH2n+2. What is the general molecular formula for cycloalkanes with two rings
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