electron flow (amperage or current) and time are measured in order to obtain the number of electrons passing through the electrochemical cell. The number of atoms in a weighed sample is related to electron flow to calculate Avogadro's number. ...
How to calculate the rate of reaction in chemistry? How many grams of N2 will be produced in 49.26 L of H2 that reacts at a temperature of 300 K and 3 atm pressure? N2+ 3H2 rightarrow 2NH3 How do you find the rate constant of a reaction?
How to calculate the energy change in the reaction N_2(g) + 3H_2(g) rightarrow 2NH_3(g)? What is the relationship between a compound's stability and its enthalpy of formation? How to measure energy What's the difference between heat of reaction and heat of formation?
ain order to calculate their effect on electrolysis efficiency 为了计算他们的作用对电析效率[translate] aLove is not about finding the right person, but creating a right relationship. It's not about how much love you have in the beginning but how much love you build till the end And Love ...
English units of torque are pound-inches or pound-feet; the SI unit is the Newton-meter. Notice that the torque units contain a distance and a force. To calculate the torque, you just multiply the force by the distance from the center. In the case of the lug nuts, if the wrench is...
Fuel cells might be the answer to our power problems, but first scientists will have to sort out a few major issues. Cost A major issue that hydrogen energy production faces is the cost of fuel. TheDepartment of Energy estimatedthat the 2020 cost of switching over to hydrogen electrolysis wa...
One electrode is exposed to atmosphere and the other is exposed to a reference chamber (more on this later). At the electrodes, the following reactions occurs: With this reaction occurring, a current can be generated. Using the Nernst equation, one can calculate the EMF produced under a no...
The detected intensities from the mass spectrometer were calibrated by linear regression, and then the equation of the calibration curve was used to calculate concentrations of dissolved ions in the electrolyte. The dissolution rate of Al is converted by subtracting the solute contribution from the ...
Calculate the mass of aluminum (in grams) of 6.73 moles of aluminum? How many moles of aluminum are equal to 6.5 x 1024 atoms of aluminum? How many grams of aluminum are there in a sample that contains 4.85 mol of Al? Determine the number of moles of aluminum in 38.8 grams of Al. ...
Born -Haber cycle is used to examine reaction energies when a metal and a halogen combine to form an ionic compound. It can be used to calculate lattice enthalpy. It is known that the formation of an ionic bond depends on lattice enthalpy. ...