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Carbon dioxide is dissolved in blood pH 7.4 to form a mixture of carbonic acid and bicarbonate. Neglecting free CO2 what fraction will be present as carbonic acid? Would you expect a major amount of carbonate (CO3-2)
What is the molar solubility of PbI2 in water? For PbI2, Ksp=7.9x10-9. You may assume that the ions do not form ion pairs in solution. Give your answer in moles per litre, accurate to two significant figures
Write the expression for the equilibrium constant. b. Which way would the reaction shift in each of the following cases?
The standard enthalpy of formation for ammonia NH3 is -46.2kj/mol. How much heat is released/absorbed when 1 mole of N2 is reacted with three moles of H2 to produce ammonia
Calculate the molarity of the ions present in these salt solutions. Assume each salt to be 100% dissociated. Please show all work.
Explain a sodium-23 nucleus has a mass of 22.99373amu. Explain how much energy, in KJ is needed to separate the following into individual protons and neutrons
Water cannot be used as a solvent for the Maleic anhydride + 1,3 cyclopentadiene because. so far all i have got is that anhydrides react toward water, and use dry reagents/apparatus. For a better yield of the cycloadduct.
Use the following data to plot the inflection points for the heating curve of 1 mole of solid octane at its melting point, -56.8 degrees C. The first point should be at -56.8 and the last point should be at 150 degrees celcius.
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..
When cobalt chloride is added to pure water, the CO ^2+ ions hydrate. The hydrated form then reacts with the Cl^- ions to set up equalibrium shown here
A solution is prepared by mixing 13.00ml of 0.0021M (aq) Hg2(NO3)2 with 25.0ml of 0.015M HCl. Assume that volumes are additive. A. Will precipitation occur?
What is the PH of a 0.085M solution of ammoniun chloride. Kb for ammonia is 1.8 times, Calculate the pH fo a solution made by mixing 125ml of .200M HCl and 500 ml fo 0.0500M KOH
When waves of equal amplitude from two sources are out of phase when they interact, it is called __________. a) destructive interference b) diffraction c) constructive interference d) effusion e) amplitude
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