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Question - A current of 5.34 A is passed through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 8.70 g of nickel?
Determine the solution for the above problem express your work in detail
What is the molarity of an unknown gas that weighs 0.110 g in a 63.5mL container at 752 torr and 23 C
Calculate the enthalpy change, , for the process in which 41.5 of water is converted from liquid at 2.1 to vapor at 25.0.
how do you determine the ph of the thing given the molarity?for example if there is .250m solutions of hno2 what would
The minimum frequency of light required to eject electrons from a metal is called the threshold frequency? Determine the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.55 × 1014 s-1.
Although the viscosity varies over a factor of more than two in the series from hexane to nonane, the surface tension at at 25 degrees Celsius increases by only about 20% in the same series. How do you account for this
What volumes of the stock solution will you have to pipet into the flasks to prepare standards and What mass of gas does the container contains If the volume of a container
Write a balanced chemical reaction describing the decomposition of ammonium nitrate, and calculate the standard heat of reaction using the appropriate enthalpies of formation
Three students in the class determine the weight of the crucible by repeated weighings on a simple balance. (A) Using the following information, which student has done the most accurate determination? (B) Which student has done the more precise de..
A chemistry graduate student is designing a pressure vessel for an experiment. The vessel will contain gases at pressures up to 210.0 MPa.
The resultant reaction produced a precipitate of barium sulfate, which was collected by filtration, washed, dried, and weighed. If 0.2635g of barium sulfate was obtained, what was the mass percentage of barium in the sample
1. a calculate thespeed that a gas phase oxygen molecule would have if it had thesame energy of an infrared photon
At its boiling point, the vaporization of 0.579 mol CH4 requires 4.76 kJ of heat. What is the enthalpy of vaporizating of methane?
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