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Explain how many grams of nickel metal are plated out when a constant current of 15.0 A is passed through aqueous NiCl2 for 80.0 minutes?
43.8 g
14.7 g
48.4 g
21.9 g
Mild acid treatment of this compound produces a solution which reduces periodic acid. What is the structure of Michelleose? Explain your reasoning
What is the value of the reaction quotient, Q, for the cell that is constructed from the two half-reactions when the Zn2+ concentration is 0.0100 M and the Ag+ concentration is 1.25 M
calculate the mass, in grams, at 25 degrees celcius of 30.0mL of propylene glycol, which has a density of 1.036g/mL
Plot the 2p-orbital for H and find out the r-value when the probability of finding the electron is at a maximum.
determine whether or not the mixing of each of the two solutions indicated below will result in a buffer. 150 mL of .10M HF, 135 mL of .175M HF
question a 0.100 m solution of a certain weak acid ha is found to have a ph of 2.45. calculate the ionization for the
You determine the absorbance of a solution to be 0.355 when the concentration of the absorbing ion is 3.5 x 10-5 M. What is the molar absorption (extinction) coefficient of the ion
A farmer applies 1700.0 kg of a fertilizer that contains 10.0% of nitrogen to his fields each year. Fifteen (15.0%) percent of the fertilizer washes into a river that runs through the farm.
Nitric oxide reacts with chlorine to form nitrosyl chloride, NOCl. Use the following data to determine the rate equation for the reaction.
the half-life of tritium 31h is 12.3 years. if 55.0 mg of tritium is released from a nuclear power plant during the
Suppose that the microwave radiation has a wavelength of 10.8 . How many photons are required to heat 205 of coffee from 25.0 to 62.0 ? Assume that the coffee has the same density, 0.997 , and specific heat capacity, 4.184 , as water over this tem..
Calculate the energy in J of a photon in the radar region of the electromagnetic spectrum that has a wavelength of 24.3 cm. Express answer in scientific notation.
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