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When a magnetic sector instrument was operated with an accelerating voltage of 2500 V, a magnetic field of 0.4 Tesla was required to focus the CH4 + on the detector.
(a) What range of magnetic field strength would be required to cover the mass range between 16 and 625, for singly charged ions, if the accelerating voltage is held constant?
(b) What range of accelerating voltages would be required to cover the mass range between 16 and 625, for singly charged ions, if the field strength is held constant?
If you used 8,400 kilojoules you expend in energy in one day to heat 49,000 grams of water at 18 degrees celcius, What would be the rise in temp?, and What would be the new temp of the water?
The vapor pressure of water at 29 ^circ rm C is 30.0 rm torr. What is the mass percentage of aluminum in this alloy?
Potassium hydrohen phthalate, KHC8H4O4, functions as monoprotic acid. If a 1.46 g sample of impure KHC8H4O4 requires 34.3 ml of 0.145 M NaOH
The empirical formula of a solid is AB2 and it dissolves to form the cation A2+ and the monoanion B-.Solid AB2 is added to water and allowed to reach equilibrium.
Consider the heterogeneous equilibrium process shown below. C(s) + CO2(g) 2 CO(g) At 700.°C, the total pressure of the system is found to be 3.20 atm. If the equilibrium constant KP is 1.52,
Weight of Water Required, Calculate the weight of water required to steam distill 500mg of bromobenzene at 95 degrees Celsius.
A mass of mercury occupies 0.750 L. What volume would an equal mass of ethanol occupy? The density of mercury is > and the density of ethanol is 0.789 g/mL.
A plant engineer has to keep the pressure of chlorine in the tank below 85.0 atm for the plant to operate under conditions of pressure maxima. How many molecules of Cl2 gas will be present in the tank of 225 gallons to 25 Celcius.
The half-life of carbon-14 is 5,730 years. If you started with 100.0 g of carbon-14, how much carbon-14 would remain after 4 half-lives.
Determine how long will it take for a sample of N2O5 to decay to sixty percent of its initial value?
moles of dye in 50 mL of solution is consumed in 188 seconds, what is the average rate of consumption of dye in mol/L.s?
The initial temperature of the HCl and Ba(OH)2 solutions is the same at 20.48°C. For the process H+(aq) + OH-(aq) H2O(l), the heat of neutralization is -56.2 kJ/mol. What is the final temperature of the mixed solution?
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