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Explain a wavelength of 925.4 nm has been detected from the emission of a hydrogen gas tube while under excitation from a high voltage source in a lab. This was caused by an electron dropping from a higher voltage source. This was caused by an electron dropping from a higher energy level to the N= 3 level. Find out the energy level number of the higher level
1. 112.153.54.95.17
methanol ch3oh is used as a fuel in race cars.a write a balanced equation for the combustion of liquid methanol in
A saturated solution of Mg(OH)2 is prepared and allowed to equilibriate at 25 degrees celcius. A 25.00 mL sample of the 25 degrees celcius solution is titrated with 0.00508M HCL solution. 1.38 mL of the HCL solution are required to fully react the..
what is the ph at the stoichiometric point end point for the titration of 50 ml of 0.20 m methyl amine ch3nh2 aq with
How many moles of NiCl can be formed in the reaction of 5.00 mol of Ni and 10.0 mol of HCl
For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt.
a 2.55-g sample of a mixture of fecl2 znd feno32 is treated with excess agno3aq. the recipitate is filtered off dried
Calculate the number of theoretical plates N in the column of length L in 17 cycles. The observed resolution is 1.51.Now, calculate the plate height in the column in ?m.Estimate the resolution in 2 cycles
the specific heat of ethanol is 2.44jg times degrees celcius. how many kilojoules of energy are required to heat 50.0 g
Permanganate ion will oxidize Cr3+ in acidic solution to produce Mn2+ and what other product. The answer is dichromate, but why.
The solubility product of Mg(OH)2 is 1.2E-11. What minimum OH- concentration must be attained (for example, by adding NaOH) to decrease the Mg2+ concentration in a solution of Mg(NO3)2 to less than 1.9E-10 M?
The solubility product for CuI(s) is 1.1x10-12. Calculate the value of the cell potential for the following half-reaction.
What are the similarities between enzyme catalyzed DNA synthesis and solid phase DNA synthesis
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