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1. List all the strong aqueous acids. What is the difference between a strong acid and a weak acid? How do the concentrations of the strong and weak acids compare to the H3O+ in solution? You don't need to list all of the strong aqueous acids. I am guessing strong acid has more hydrogen ions? 2. What is pH? What happens to pH as the [H3O+] increases? Support your answer by comparing the pH of 0.50 M and 0.050 M HCl. For this one I know ph is the measurement of the acidity/baic of the solution 3. Why is the pH of basic solution greater than 7.0 while that of acids is less than 7.0? Would the pH of a 0.1 M weak acid be greater than or less than that of a 0.1 M strong acid ? 4. If the measured pH of a 0.10 M weak acid, HA, is 2.45, what is its experimental Ka value. 5. Give examples of a neutral salt, acidic salt and basic salt. Explain your choice.
A compound used to treat manic depressives has the formula Li2CO3. Which of the following is the correct name for this compound
the rate of the constants for the above gas pharse reaction is 1.438M^-2 s^-1 at exactly 642.5 Kelvin and 21.64 M^-1 s^-1 at exactly 838.1 Kelvin. What is the value of the activation energy of the reaction in KJ/mole?
The following data were recorded in the analysis of erythropoietin in a plasma sample, as mg/dL. Which of the results, if any, could be statistically rejected with 95% confidence?
In a study of hydrogen halide decomposition, 0.200mol hydrogen iodide is placed in a 2.00L flask and the temperature raised to 4530C. At equilibrium, [HI] = 0.078M. Calculate Kc.
Calculate the vapor pressure of a solution containing 25.3g of glycerin C3H8O3 in 125mL of water at 30.0C. The vapor pressure of pure water at this temperature is 31.8torr}. Assume that glycerin is not volatile and dissolves molecularly (i.e., it ..
What is the maximum number of grams of NaCl that can be added to 4.0 L of a 0.0090 M lead(II) chloride solution (without changing the volume significantly)
A 2 mL sample was taken of a solution of barium iodate at 10 degree C. the sample was mixed with 2 mL of 0.5 M KI and 2 mL of 1M HCl. The transmittance of the mixture was read and compared to a calibration curve which indicated a concentration of ..
If you dilute 750.00 mL of a 4.117 × 10-4 M solution into a 2.00 L volumetric flask and fill to the line with water, what would be the final concentration of the solution?
How much heat is required to convert 27.0 grams of ethanol at 28 degrees celcius to the vapor phase at 78 degrees celcius?
The decomposition of hydrogen peroxide is first order in H2O2. 2H2O2 -----> 2H2O + O2 The rate constant for this reaction at 20 C is 1.8 * 10^-5 s^-1
the open end of a melting point capillary tube allow you to measure the melting point of a compound that sublimes?
NaOH + CO2 - >Na2CO3 + H2O. If the average human body discharges 716 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft? Answer in units of mol.
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