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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 122 piece of metal is heated to 285 and dropped into 84.0 of water at 26. If the final temperature of the water and metal is 58.3, what is the specific heat of the metal.
Green light of a wavelength 516 nm is absorbed by an atomic gas. What is the energy difference between the two quantum states involved in the transition.
A 17.0-g sample of ice at -19.0°C is mixed with 101.0 g of water at 87.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
Lakes that have been acidified by acid rain can be neutralized by liming, the addition of limestone (CaCO3 ). How much limestone in kilograms is required to completely neutralize a 3.8 x109 lake with a pH of 5.5.
85.0 mL of H2O is initially at room temperature (22. 0C). A chilled steel rod at 2.0 C is placed in the water. If the final temperature of the system is 21. 0C
You dissolve 650.0 g of sugar (C12H22O11) in 726 mL of water. The density of wat is 1.00 g/mL.
Heat is lost to the styrofoam calorimeter. Assuming a 6.22 C temperature change for the reaction of HCl(aq) with NaOH(aq), calculate the heat loss to the inner 2.35-g styrofoam cup. The specific heat of styrofoam is 1.34 J/gC.
Write the structures of the saytzeff elimination
If you wanted to prepare a 1.45 L buffer with a total phosphate concentration of 0.0500 M, how many grams of NaH2PO4 and Na2HPO4 would you mix together? How many grams of conjugate acid do you need? How many grams of conjugate base do you need?
Show the reaction energy diagram of two competing reactions, A & B and A & C, for which the kinetic product (C) is different from the thermodynamic product (B). Both reactions follow a one-step mechanism.
If the solution is 40.0% K2CO3 by mass, what is the predicted freezing point of this solution in °C, assuming full ionization.
sample of a gas at 25.0 oC and at a pressure of 3 atm, what will the pressure be if the temperature is raised to 50.0 oC?
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