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Which one is true or false f) HCLO4 is an oxoacid g) the name of HCLO4 is chloric acid i) in the redox reaction 4fe(s) + 3O2 (g) ---2Fe2O3(s) Fe is oxidized and oxygen is reduced
The following measurements refer to the same solution, but one is incorrect. Identify the incorrect value and enter the correct value in the space below. Enter exponents using "e-notation
680 mL of a solution of unknown concentration is diluted to a final volume of 1700 mL where the concentration is found to be 1.2 M. What was the initial molarity
A 17.0 m-long copper wire, 2.10 mm in diameter including insulation, is tightly wrapped in a single layer with adjacent coils touching, What is the length of the solenoid
Identify the oxidizing agent in the chemical reaction 2MnO4? + 5H2SO3 ? 2Mn2+ + 5SO42? + 4H+ + 3H2O. Answers: MnO4? H2SO3 Mn2+ SO42? H+
The image produced by a concave mirror is located 25 cm in front of the mirror. How far in front of the mirror is the object located
The following half-reactions occur in the mercury battery used in calculators. If E°cell = 1.357 V, calculate the equilibrium constant for the cell reaction at 25°C.
The starship Enterprise speeds by you at a speed of 0.960c. It is measure in your frame to be 100 m long. What will be it's length at rest
The outside mirror on the passenger side of a car is convex and has a focal length of -6.9 m. find the magnification of the mirror
Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. O2(g) + 4H+(aq) + 4e- Picture 2H2O(l); E° = 1.229 V Al3+(aq) + 3e- Picture Al(s); E° =
Consider a fusion reaction in which two deuterium nuclei fuse to form a tritium nucleus and a proton, How much energy is released in this reaction
A block in the shape of a rectangular solid has a cross-sectional area of 4.50 cm2 across its width, a front-to-rear length of 16.0 cm, Whats the conductivity of the material
Suppose a muon produced as a result of cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v = 0.9500c. What distance is this in the muon's frame
At rush hour, the noise from a highway is 1.0 *10^-4 W/m^2 with 100 cars passing a given point a minute. At night the average noise is reduced to 1.0*10^-6 W/m^2. How many cars are now driving on th
a 200 ohms resistor and a .4 H inductor are connected in series with a voltage source having amplitude of 30 v, what is the current amplitude
Although the mechanism of the coupling process is not well understood, it is known that ratre appears to depend on the square of the concentration of the halide.
What is the empirical formula of a compound composed of 3.25% hydrogen, 19.36% Carbon, and 77.93% oxygen by mass
An AC adapter for a telephone answering machine uses a transformer to reduce the line voltage of 120 V to a voltage of 7.00 V. What is the power drawn from the electric outlet
Balnace the following half reactions in an acidic solution a) MnO4 -(aq)---- MnO2(s) b) IO2- (aq)----Io4-(aq) based on (a) and (b) above, write balanced redox eqautions of (A) in an acidic solution
suppose the original experiment is done on the Moon, where g, the acceleration due to gravity, how will the graph compare to the original graph
How many L of solvent should be added to 0.46 L of a 0.28 M solution if you want a final concentration of 0.13 M.
Based on this information and what you learned in this chapter about the action potential, estimate the total number of sodium ion channels in the membrane of a nerve cell
Z- is a weak base. An aqueous solution of NaZ is prepared by dissolving .350 mol of NaZ in sufficient water to yield 1.0 L of solution. The pH of the solution was 8.93 at 25.0 C. The Kb of Z- is
Suppose that 35.47 g of ice at -13.7°C is placed in 46.51 g of water at 96.7°C in a perfectly insulated vessel. Calculate the final temperature.
What is the pH of a solution made by mixing 100.00 mL of .20 M HCl with 50.0 mL of .10 M HCl. Assume that the volumes are additive