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A) An HBR acid solution has a density of 1.25 g/ml the acid solution is 20% Explain what is the molarity and what is the molality?B) Define what is the normal concentration of 3.2M solution LiI?
The molar heat capacities of iron and gold are 25.19 J/(mol x degrees celsius) and 25.41 J/(mol x degrees celsius), respectively. What is the final temperature of the water and pieces of metal
the radioactive decay of t1-206 topb-206 has a half-life of4.20 minutes. starting with 5.00 x1022 atoms of t1-206
Diphenylethyne can be prepared from meso-1,2-dibromo-1,2-diphenylethane, by double E2 elimination via the corresponding alkene. a) Which alkene is initially formed?
What is the proper coeffcient for water when the following equation is completed and balanced for the reaction in the basic solution. C2O4^2-(aq)+MnO4^-(aq)--->CO3^2-(aq)+MnO2(s)s
Calculate the equilibrium concentrations if the initial concentrations are 2.30 M N2 and 0.51 M O2 . (This N2/O2 concentration ratio is the ratio found in air.)
A 40.0ml sample of 0.150 Ba(OH)2 is titrated with 0.400M NH)3 . Calculate the pH after the addition of the following volumes of acid, and plot the versus milliliters of added.
The half-life of U-235, an alpha emitter, is 7.1*10^8 yr.Calculate the number of alpha particles emitted by 9.1 mg of this nuclide in 8.0 minutes.
What is the expected boiling point of a solution prepared by dissolving 5.83 g of sodium iodide (NaI) in 59.2 g of water (H20)? For water, Tb = 100.00 degrees Celsius and Kb = 0.512 degrees Celsius m-1. The answer is 100.675. Please show a step by..
determine partial pressure and number of moles of each gas in a 17.25 L vessel at 30 degrees celsius containing a mixture of xenon and neon gases only.
What is the electron-pushing mechanism for the aldol condensation reaction of benzaldehyde and acetone forming dibenzalacetone
Consider a chromatogram containing a single analyte with retention time of 4 minutes. The mobile phase elution time is 0.2 minutes. What is the capacity factor (k') for the analyte in question?
What is the concentration (molarity) of chloride ions after combining 49.7 mL of 0.383 M barium chloride with 14.1 mL of 0.590 M cobalt(II) chloride
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