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1. Which solution is more acidic, one with a pH of 6.0 or one with a pOH of 9?
2. A solution with a pOH of 7.30 is expected to be a (weak, strong, acidic or basic?
3. Calculate the OH- concentration of a solution that has a [H3O+] of 3.5 x 10-10 M
A mixture containing 80.0 nM iodoacetone (designated A) and 64.0 nM p-dichlorobenzene (designated B) gave the relative detector response (peak area of A)/(peak area of B) = 0.71 in a chromatography experiment.
Calculate the number of grams of H2 formed If the wet Hydrogen gas formed occupies a volume of 9.67 Litres
Estimate the pH at the equivalence point of an HOAc solution if 25.5 mL of this solution required 37.5 mL of 0.175 M NaOH to reach the equivalence point (Ka = 1.8 x 10-5).
Glucose oxidation in the human body releases 6 mol of carbon dioxide per mole of glucose. How many moles of glucose are required to produce the amount of carbon dioxide
A 250.0 mL aliquot of 2.50 M H2SO4 solution is mixed with a 250.0 mL aliquot of 4.00 M HNO3 solution. What is the molarity of hydrogen ions in the combined solution.
Lead(II) sulfide reacts with hydrogen peroxide to form lead(II) sulfate and water. How many grams of hydrogen peroxide are needed to react completely with 265 g of lead(II) sulfide?
Suppose that each sphere represents 6.7×1021 molecules and that the volume of the container is 1.0 L. What is the rate constant for the reaction in the usual units?
95.0 mL of H_2O is initially at room temperature (22 C). A chilled steel rod at 2 C is placed in the water. If the final temperature of the system is 21.4 C, what is the mass of the steel bar?
a mixture of gases contains 0.290 mol ch4 0.250 mol c2h6 and 0.270 mol c3h8. the total pressure is 1.60 atm. calculate
How did the Dulong-Petit law fail to reproduce heat capacities of monatomic metals at low temperatures and how did Einstein explain and rectify this failure
Write the net ionic equation describing the oxidation of mercury to HgO by O2 in a basic aqueous solution.
Water expands when it freezes. how much work does 100. g of water do when it freezes at 0 degrees celcius and pushes back the metal wall of a pipe that exerts opposing pressure of 1070 atm?
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