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what volume of a 0.400 mM solution of nickel (II) acetate (FW 247.7 g/mol) is required to provide 20mg of nickel (atomic mass of nickel 8.69)?
Show work please. The 20 mg of Nickel is screwing me up
In a Titration 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00mL hydrofluoric acid solution. What is the molarity of the hydrofluoric acid solution?
Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. What type of electromagnetic radiation is emitted in each transition?
In a calorimeter, 10.0 g of ice melts at 0oC. The enthalpy of fusion of the ice is 334 J/g. How much heat was absorbed?
How much ammonia would be spent to remove the NOx generated, expressed in kg of of NH3 per 100 kg of fuel?
What difference would you predict would occur in the graphing of the data if carbon dioxide was used instead of the components of air?
what polymer is made from the monomer vinylidene chloride
if you had 21 moles of oxygen and 8 moles of ethane, what is the most moles of carbon dioxide possible?
aluminum may be formed by the passage of 60,714 C through an electrolytic cell that contains a molten aluminum salt.
It takes 49.0 to raise the temperature of an 8.00 piece of unknown metal from 13.0 to 24.5. What is the specific heat for the metal?
A certain first-order reaction (products) has a rate constant of 6.90×10-3 s^{-1} at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
A 47 kg sample of water absorbs 388 kj of heat. If the water was initially at 27.6 Celcius, what is its final temperature?
95.0 mL of H_2O is initially at room temperature (22.0C). A chilled steel rod at 2.0C is placed in the water. If the final temperature of the system is 21.5C, what is the mass of the steel bar?
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