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How long will it take to deposit 89 g of magnesium from an electrolysis cell containing Mgo at a current of 12.5. A magnesium formation is the only cathode reaction mg = 24glmol.
a, The height of Niagra Falls is 51 meters. Calculate the Potential Energy of 1g of water at the top of the falls relative to the ground level. b, What would be the increase in temperature of the water if all Kinetic Energy were converted to heat.
At 25 degrees Celsius, the reaction: H3O+ + NH3 --> NH+ + OH- is first order in each reactant, and has a rate constant of 4.3x 10^10 M^-1 s^-1
A mixture of carbon and sulfur has a mass of 9.0g . Complete combustion with excess O2 gives 23.0g of a mixture of CO2and SO2. Find the mass of sulfur in the original mixture.
Consider a container sealed with a small opening. A mixture of several gases are added to the container. Assuming the gases do not react, indicate the order that the gases escape out of the container
carbonic acid solution with [H_2CO_3] = 0.00735 M is titrated with 0.100 M KOH. Determine the pH of the solution when 70.00mL of OH have been added.
What is the total number of joules absorbed by 65.0 g of water when the temperature of the water is raised from 25.0 degrees celsius to 40 degrees celsius?
Calculate the number of collisions per second of one hydrogen molecule at 24 °C and 8.00 bar. The diameter of a hydrogen molecule is 270 pm. I am having trouble with the calculations. Is there a specific way to put this in my calculator
If a non-cyclic alkane shows a molecular ion peak at m/z 2.40 × 102, what is the chemical formula
What is the molecular formula of the compound 2,3-dimethyl-4-cyclopentyl-5-ethyldecane?
A .692 L NaCl solution is diluted to a volume of 1.25 L and a concentration of 4.00 M. What was the initial concentration?
What is the volume of a balloon that contains 34 moles of calcium bicarbonate?
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
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