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A uniformly charged thin ring has radius 14.5cm and total charge 23.0nC . An electron is placed on the ring's axis a distance 30.0cm from the center of the ring and is constrained to stay on the axis of the ring. The electron is then released from rest.
Inorganic phosphorous is spectrophotochemically measured in blood serum by formation of a reduced heteropoly acid (heteropoly blue) and comparison of its absorbance with a standard treated by the same procedure.
In IR spectroscopy does the position of the stretch of the oxygen-hydrogen bond in alcohols depend on the concentration of the alcohol?
A scientist wants to make a solution of tribasic sodium phosphate, Na3Po4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 425 mL of a solution
How many grams of oxygen gas (O2) will it take to oxidize 1 pound of iron metal? Make sure to show the redox reaction and all work.
A state of dynamic equilibrium, Ag2CO3(s) 2Ag^+(aq) + CO3^2-, exists in solution. After water is added to the system and equilibrium is reestablished: what change in the number of moles of AG^+ (aq) occurs in the system? Explain.
What was the percentage by mass of Mg(OH)2 in the original sample? [Hint: When Mg(OH)2 or Al(OH)3 reacts with HCl(aq), the products are a chloride salt, water and CO2(g). Assume that all of the CO2(g) leaves the solution without reacting.]
Calculate the mass of silver bromide that will produce 0.023 mol Na3[Ag(S2O3)2].Answer in units of g.
the dilute acid solution and titrate it with standard solution. You need 19.0mL of the standard solution to reach the end point. what is the concentration of the original acid solution?
A certain dry mixture contains only three compounds: silver nitrate ( AgNO3), magnesium chloride (MgCl2), and barium nitrate Ba(NO3)2. When 1.253 g of the mixture was added to excess water, 0.114 g of a dry precipitate was recovered by filtration...
How much energy is needed to heat 69.0 grams of H20(s) by 24.0 celcius if specific heat is 2.087 J(g celcius)
Consider the titration of 50.0 mL of 0.450 M C5H11N(aq), piperidine solution (Kb = 1.3 x 10-3), with 0.350 M HNO3(aq). What is the pH of the solution when 15.0 mL of 0.350 M HNO3(aq) is added? Calculate the pH of the solution at the halfway point of ..
Molecular formula of a compound and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
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