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Equal volume of 0.220 M AgNO3 and 0.140 M ZnCl2 solution are mixed. calculate the equilibrium concentration of Ag+ and Zn2+
a hydrate of calcuim chloride contains 49.3% water and has a formula weight of 219g/mol calculate the molecular formula of the hydrate
Consider an amphoteric hydroxide, M(OH)2(s), where M is a generic metal. Estimate the solubility of M(OH)2 in a solution buffered at pH = 7.0, 10.0, 14.0
The density of iron is 7.87 . What is the mass of a 4.00 4.00 1.00 block of iron? Express your answer to three significant figures and include the appropriate units.
The following system is at equilibrium with [N2O4]= .55M and [NO2]=.25M. If an additional .10 M NO2 is added to the reaction mixture with no change in volume, what will be the new equilibrium concentration of N2O4
15g of steam at 373 K is added to 250g of H2O at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate changes in entropy for the process.
compute the quantity of workw that is associated with a 9.5 litre expansion of a gasnbsp againstnbsp the givennbsp
A silicon wafer is etched in a Cl2 plasma. A mass flow controller (used to meter the gas flow fed to the reactor) shows a reading of 100 sccm (sccm=standard cm3 per min; standard conditions are 273 K and 1 atm). The etching reactor operates at 100..
25.0 ml of 0.212 M NaOH ia neutralized by 13.6 ml of an HCl solution. The molarity of the NAOH solution is?
Draw the structural formula for the same. Explain the manner in which the structural formula of polar and non-polar amino acids would vary.
The excess EDTA from this reaction required 19.77 mL of 0.01883 M Pb2+ standard solution to reach an end point. Calculate [Cu2+] in the unknown
Co(H2O)62+(aq)+4Cl?(aq), which interconverts the blue CoCl42? ion and the pink Co(H2O)62+ ion. Will the equilibrium concentration of CoCl42? increase or decrease when the following changes occur?
The commercial synthesis of adipic acid involves the oxidation of cyclohexanol with nitric acid. List the hazards involved with this process, and briefly comment on both the environmental impact and personal exposure issues associated with the com..
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