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Calculate the cell potential for the following reaction as written at 69 °C, given that [Mg2 ] = 0.876 M and [Fe2 ] = 0.0160 M. Standard reduction potentials can be found here.
Assume that the electrode follows the Nernst equation, the temperature is at 25°C, and that the activity coefficient of X is 1.
Carbon monoxide gas burns in oxygen to form carbon dioxide gas. Write a balanced equation for the reaction and determine the volume of oxygen needed to react completely with 561 mL of CO at 40.0°
Calculate the formate ion concentration and pH of a solution thatis 0.050M in formic acid (HCHO2; Ka=1.8*10^-4) and 0.10M inHNO3
What is the total force on the bottom of a swimming pool (20m by 10m), if the pool has an average depth of 1.50 m
If your titration solution is 0.431 M in NaOH, and the endpoint occurs at 13.20 mL of titrant, how many mmol of NaOH are required to reach the endpoint
A 5.0-kg projectile is fired over level ground with a velocity of 200.0 m/s at an angle of 30.0 degg above the horizontal. Over the entire trip the work done by the air forces is
A spherical ball of material is rotating about its center at 35 rad/s. It has a mass of 2.0 kg and a radius of 0.11 m. what will be its rate of rotation
A 6.00 kg mass is located at (2.00m, 2.00m, 2.00m) and a 5.00 kg mass is located at (-1.00m, 3.00m, -2.00 m). find the moment of inertia of this system
what is the final temperature once thermal equilibrium is reached. c) how much ice remains once thermal equilibrium is reached.
a 900.0 N hiker stops 1/3 of the way across a 3600.0 N bridge. Find the normal force acting on concrete supports at each end of the brige
A 1.50 g sample of solid NH4NO3 was added to 35.0 mL of water in a styrofoam cup (insulated from the environment) and stirred until it dissolved. The temperature of the solution dropped form 22.7 C
A disk of inertia .10 kgxm2 is rotating with an angular speed of 1.0 rad/s. A non-roatating ring of mass .5 kg, What is the new angular speed of this combination
A bicycle wheel is spinning with an angular velocity of 20 rad/s. How long does it take the wheel to come to rest
When a piece of metal is irradiated with UV radiation (wavelength = 162 nm), electrons are ejected with a kinetic energy of 5.96*10^-19 J. What is the work function of the metal? (in joules)
What is the pH (to nearest 0.01 pH unit) of a solution prepared by mixing 87.0 mL of 0.0601 M NaOH and 71.0 mL of 0.0138 M Ba(OH)2
A 5.0-kg mass attached to a spring is displaced 8.0 cm from equilibrium position. What is the frequency of the oscillation
Calculate the energy in joules required to ionize a hydrogen atom when its electron is initially in the n = 4 energy level.
How the scanned record will be managed and the standards or legislation that are required to be followed.
Elemental phosphorus reacts with chlorine gas according to the equation: P4 (s)+ 6Cl2 (g) --> 4PCl3 (l) A reaction mixture initially contains 45.11 g P4 and 132.0g Cl2. Once the reaction has occu
A 1200 kg car coasts in neutral down a 2.0° hill. The car attains a terminal speed of 23.0 m/s. How much power must the engine deliver to drive the car on a level road at 23.0 m/s
A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL. If s = 0.40 is a good approximation of lower case sigma
A car goes 13 miles east, then due North ending up 25 deg North of East from its initial position. How far due North did it travel
What is the subshell corresponding to the following sets of quantum numbers. An example of a subshell is 2s. A) n=3,l=2 b) n=3, l=1
Draw the correct molecular geometries of the following covalent compounds. Use the electronegativity differences between the atoms in each bond pair to determine the presence and direction of indivi