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Consider the galvanic cell with Sn2+/Sn and Ag+/Ag both prepared with NO3- as their anion and all solutions prepared at 1.0 M.
Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. What is the pH in the Pt | H+ | H2 half-cell? What is the value of the equilibrium constant for the reaction occ
How many moles of carbon dioxide are contained in 7.75 grams of carbon dioxide.
At what rate must the potential difference increase across a 1.50 u F capacitor to create a 0.900 A displacement current in the capacitor? ( V/s)
The oscillations of an actual spring-block system slowly reduce in amplitude and finally the system comes to a halt. What happens to the energy of the system?
A person who weighs 653 N steps onto a spring scale in the bathroom, and the spring compresses by 0.788 cm. (a) What is the spring constant? (b) What is the weight of another person who compresses t
The value of Delta g for the conversion of 3-phosphoglycerate to 2-phosphoglycerate (2PG) is +4.4 kj/mol. If the concentration of 3-phosphoglycerate at equilibrium is 2.55 mM, what is the concentrac
Question: Both HIO( Hypoiodous acid) and HIO3 (Iodic acid) are both weak acids. a. What is the oxidation state of the iodine atom in each acid?
A car is hauling a 85.8-kg trailer, to which it is connected by a spring. The spring constant is 2360 N/m. The car and the trailer are moving with a constant acceleration of 0.487 m/s2. By how much
The balanced equation for the combustion of ethanol is. How many grams of dioxygen are required to burn 5.9 g of C2H5OH?
1. What is the minimum necessary power output rating of the water pump in watts? 2. What is the minimum necessary power output rating of the water pump in horsepower?
Calculate ΔS (universe) for the decomposition of 1 mol of liquid water to form gaseous hydrogen and oxygen. Is this reaction spontaneous under these conditions at 25 °C?
A 2.0-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of the spring/mass system is 2.8 J. What is the elastic potentia
A piece of angle iron is hinged at point A. Determine the resultant torque at A due to the two acting forces. Replace the 60 N force by a 40 N force and the 80 N force by a 100 N force. Please show
Find the resultant force on the donkey if the angle between the two ropes is a) 60°, b) 90°, c) 120°. One end is pulled with a force of 60 lb and the other is with a force of 30 lb. Use
When 5.00 g of fructose, C6H12O6, (FW 180.16 g/mol) is burned in a calorimeter whose heat capacity is 29.7 kJ/oK, the temperature increases by 2.635oK. Calculate the heat of combustion of fructose i
A bulb emits light uniformly in all directions. The average emitted power is 150W. At a distance of 5m from the bulb, determine. The average intensity of the light, the end value of the electric fie
The temperature of moist air leaving the dehumidifier unit, in°C. The volumetric flow rate of air entering the air conditioner,in m3/min. The rate of water condensed, in kg/min.
A 2400 resistor and a 1.8 if capacitor are connected in series across a generator(60hz 120v rms). Determine the average power delivered to the circuit.
Eliminate the parameter from the parametric equation:
Express as a sine or cosine function. 4cosxsin(x/2)cos(x/2)
Why does the introduction of a para nitro group have a much greater effect on the acidity constant of phenol than it does on benzoic acid? Justify your response by using appropriate resonance struct
Question: A sealed bottle of carbonated water (CO2 dissolved in water) has an initial pressure of 1.64 bar at 1 C. If the lid develops a small leak so that the system comes to equilibrium at PCO2 =
Describe two different energy alternatives to fossil fuels in detail. Discuss how they work, how they compare with fossil fuels, and their relative advantages and disadvantages.
Find the center, radius, and intercepts of the circle x^2+y^2+4x+2y-20=0