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Questions
A. Give two reasons why we fillthe gas generator test tubes almost to the top with chemicals.
B. What happens to the zinc in the hydrogen generation experiment?
C. What happens to the manganese in the oxygen generation experiment?
D. Write a balanced equationfor the reactionbetween O2 and H2.
E. What is the function/purposeof the bromothymol blue in the CO2 experiment?
F. Bromothymol blue is blue in the presence of basic solutions, and yellow in the presence of acidic solutions.If your solutionis a murky green, what might you assume about the solution?
At 700 degrees C, the total pressure of the system is found to be at 3.45 atm. If the equilibrium constant Kp for this reaction is equal to 1.52, calculate the equlibrium partial pressures of CO2 and CO gases.
Problem- In a gas discharge tube filled with atomic hydrogen an incident proton (not photon!) excites an electron in H from the ground state to n=3
A piece of amber was cut into a rectangular solid measuring 5.18cm by 10.8cm by 2.85m . What is the volume in cubic centimeters
The ozone layer is about 20 km thick, has an average total pressureof 10 mm Hg(1.3 * 10^-2 atm ) , and has an average temperature of 230 K. The partial pressure of ozone in the layer is only about 1.2 * 10^-6 mm Hg( 1.6 * 10^-9 atm ).
Models do not necessarily have to be physical objects. They can be two-dimensional drawings or even mental constructs. Cite one or more examples of such models encountered outside of chemistry. Can you think of models that are used in your own..
Calculate the theoretical amount of 2.5 M NaOH (10%) solution needed to convert the benzoic acid to its water-soluble salt. Is the combined volume of NaOH used in the extractions sufficient for complete deprotonation of benzoic acid
A solution is prepared by dissolving 0.23 mol of acetic acid and 0.27 mol of sodium acetate in water sufficient to yield 1.00 L of solution. What is the pH change (pH) caused by the addition of 0.05 mol of HCl to this buffer solution
A 3.963-g sample of coal was burned in a tube furnace and the liberated SO2 was collected in dilute H2O2, which converts the SO2 to sulfuric acid:
How does the size of ions in a solution affect the solutions conductivity. Would you expect the conductivity of a solution containing an equal concentration of ions with a charge of +2 to be twice that of one containing ions with a charge of +1
Considering the combustion of propane, how many grams of O2 are needed to completely burn 32.1g of C3H8
Applying energy to dry ice causes the molecules to phase change straight from a solid to a gas, sublimation. When gas particles hit the walls of a container, they exert pressure. As we apply energy to dry ice, the gas molecules move faster which..
Sr(s) reacts very vigorously in excess 1 M H4NHCO3 as a ppt and H2 (g) are formed among the products. For this system in a closed container, write the correct equations for each half reaction and net redox reaction noting that incompatible product..
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