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A voltaic cell is set up at 25º C with thefollowing half cells: Al3+ (0.0010 M) | Al and Ni2+(0.50 M) | Ni. Write an equation for the reaction that occurs when the cellgenerates an electric current and determinethe cell potential.
Calculate how many grams of Ni2+ are present in 3.36 moles of nickel(II) fluoride(NiF2) and also determine the number of moles of F- ion are present in 4.82 grams of nickel(II) fluoride.
The solubility of a gas in H2O at a temperature of 25 °C and a pressure of 1.2 atm is 0.042 M. What will the solubility of the same gas be in H2O at the same temperature at 3.4 atm.
Describe the hybrid orbitals used by the central atom in O 3 .and also determines what is the number of sigma and pi bonds present in O 3 .
process it is given that Rubidium has a heat of vaporization =69.0 kJ/mol at its boiling pt= (686°C). Compute ΔS for this process?
Europium (Europium is a chemical element with the symbol Eu and atomic number 63 )crystallizes in a body-centered cubic lattice compute the unitcell edge length in pm if The density of Eu is 5.26 g/cm3..
By Solving this problem student understand about isotopic abundance and how to calculate atomic weight (average atomic mass) of an element -
water has a molar heat of vaporization =40.79 kJ/mol, determine how many grams of water could be vaporized by 0.806 kilo Joules heat? Express your answer in units of g
when a metal was exposed to light at a frequency of 4.63*10^15 Hz, electrons were emitted with a kinetic energy of 3.10*10^-19 J.
Determine What is the ? Ssys for the process?(if it is given the specific heat capacity for ethanol is 2.42 J/g K.) express your answer in units of J/K
100 mol/h of n-octane is burned in 80.0% excess air to 95.0% conversion. What is the molar flow rate of N2 in the stack gas if The n-octane is converted to a mixture carbon monoxide, carbon dioxide, and water, where the ratio of CO2 to CO is 4:1?
Determine the pressure in a 14.6 L cylinder filled with 0.440mol of N2 gas at a temperature of 327K.
What is the concentration of the H 2 SO 4 if a chemist titrates 300.0 mL of Sodium Hydroxide NaOH with a 5.0 M solution of NaOH and needs only 3.4 mL of the base to reach the endpoint,?
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