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Question - A current of 5.34 A is passed through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 8.70 g of nickel?
Determine the solution for the above problem express your work in detail
Why do dehydration reactions use acid as catalyst? Why can you not use base for dehydration reactions?
A 40hp, 1780 r/min, 460V, 3-phase, 60 Hz, drip-proof Baldor Super E premium energy induction motor. Calculate the cost of driving the motor during a 3 year period, knowing the cost of energy is 0.06$/kWh.
Calculate the energy released by the reaction when a 55.8 g sample of iron reacts completely with 1.00 mole of oxygen. The enthalpy of formation of Fe2O3(s) is -826. kJ*mol-1
The height of the mercury in the right arm open to atmospheric pressure (760 mmHg) is 100 mm and the height in the left arm is 120 mm. What is the pressure in the bulb
Although water and ammonia differ in molar mass by only one unit, the boiling point of water is over 100 °C higher than that of ammonia. What forces in liquid water that do not exist in liquid ammonia could account for this observation
phase induction motor rated at 10kW, 1450 r/min, 380v, 50Hz has to be connected to a 60 Hz line. What line voltage should be used, and what will be the approximate speed of the motor?
Consider the titration of a 24.0-mL sample of 0.110M HC2H3O2 with 0.125M NaOH. Determine each of the following:
A 300hp, 2300V, 3-phase, 60Hz squirrel cage induction motor turn at a full-load speed of 590 r/min. Calculate new power output. Calculate new I2R losses in rotor.
What is the molar mass of a gas when 50.0 g of the gas occupies 18.0 L at 125 C under 2.16 atm of pressure? If the gas in last question is 85.6% carbon and the remaining mass is hydrogen, what is the molecular formula of the gas
Consider the gas reaction of the formation of nitrogen dioxide from nitric oxide and oxygen. If 9.0 L of NO are reacted with excess oxygen gas at STP, what is the volume in microliters (use proper scientific notation) of the nitrogen dioxide produ..
A solution was made by mixing 50.00ml of .100 M HNO3 and 100.00 ml of .200 M HNO3. Compute the morality of the final solution of nitric acid
Calculate the enthalpy change for converting 10.00g of ice at -25.0°C to water at 70.0°C in kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K,.
Draw all of the resonance forms of 4-methoxybenzaldehyde which contribute to the reducwd electrophilicity of the aldehyde carbon relative to benzaldehyde.
The Ksp of cadmium hydroxide, Cd(OH)2, is 7.20 × 10-15. Calculate the molar solubility of this compound.
Problem- Calculate the pH of a solution prepared by dissolving 0.270 mol of formic acid (HCO2H) and 0.230 mol of sodium formate (NCO2H) in water sufficient to yield 1.00L of solution. The Ka of formic acid is 1.77x10^-4
Important information about Second Order Reaction, The reaction of CH3CH2NO2 + OH- --> H2O + CH3CHNO2 - is a second order and k at 273 K
A gas occupies 5.38 L when the temperature is 45.0oC and at 1.00 atm of pressure. What temperature change (in K) will be needed to change the volume to 6.30 L at constant pressure
Synthetic chemists often take IR and NMR spectra of crude reaction products, before further purification, looking for evidence that the reaction had afforded the expected product.
How many significant figures can you accurately report in the values for Ksp that you calculated in Parts 2 and 3 of the experiment? Are the two values different from each other to that number of significant figures?
What difficulties could you encounter trying to determine the cp of a chunk of metal that has a hollow center?
The pH of a 0.015 M ammonia solution is 10.72. What is its hydroxide-ion concentration
Provide the structure and name of the products produced from the following reactions.
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