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Hydrolysis of the compound B5H9 forms boric acid, H3BO3. Fusion of boric acid with sodium oxide forms a borate salt, Na2BO7. Without writing complete equations, find the mass (in grams) of B5H9 required to form 156g of the borate salt by this reaction sequence.
Calculate the Root Mean Square Speed and its average kinetic energy per molecule of Nitrogen and water vapor
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
What can we say about the temperature change of a sample of water when the value of q is negative
Tetrahedral complexes of Co2+ are quite common. Use a d-orbital splitting diagram to rationalize the stability of Co2+ tetrahedral complex ions.
occurring at 800 K and 1atm. The initial mixture contains 1 mol of SO2 and 0.5 mol of O2. The reaction mixture can be considered to be an ideal gas.
Toxic cyanide ions can be removed from wastewater by adding hypochlorite: 2CN-(aq)+5OCl-(aq)+H2O(l) --> N2(g)+2HCO3-(aq)+5Cl-(aq) How many liters of 0.125M OCl- are required to remove the CN- in 3.4X10^6L of wastewater in which the CN- conentratio..
When a molecule forms a hydrogen-bonded dimer as shown in your lab manual on pg 162 or is an electrolyte, you need to account for Van't Hoff factors. For the dimer shown in manual
The element silicon has 3 isotopes with the masses and natural abundances shown in the table. Mass of Isotope Natural abundance 27.97693 92.23 28.97649 4.67 29.97376 3.10 What is the average atomic mass of silicon
Suppose you did the bromination of cholesterol using bromine in DMSO(dimethyl sulfoxide)/H2O mixture (instead of acetic acid). What product(s) would you get?
What are the concentrations of the following ions at the equivalence point. Na+, H3O+, OH- C6H5CO2- M Na+ M H3O+ M OH- M C6H5CO2- What is the pH of the solution
The following set of data was obtained by the method of initial rates for the reaction: S2O8^2- (aq) + 3 I- (aq) ==> 2 SO4^2- (aq) + I3- (aq) What is the initial rate when S2O8^2- is 0.15M
What is the level of orbital hybridization around the central atom of molecules that belong to the following AXE classes: Select the one answer that is correct in all three columns.
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