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Question- Consider the following reaction occurring at 298 K: BaCO3(s)?BaO(s)+CO2(g) PART A Show that the reaction is not spontaneous under standard conditions by calculating ?G?rxn. Part B If BaCO3 is placed in an evacuated flask, what partial pressure of CO2 will be present when the reaction reaches equilibrium? Part C Can the reaction be made more spontaneous by an increase or decrease in temperature? yes or no
Express your answer to two significant figures and include the appropriate units.
5.00 grams of magnesium bromide are dissolved in two liters of water. What is the total number of moles of ions in the resulting solution
An appropriate indicator is used. Ka for acetic acid is 1.7x10^-5. Calculate the pH in the flask after 300 mL of 0.100 M NaOH has been added
Look up the chemical compound that is methiocarb and describe briefly its chemistry and its pharmacology and what effects does Methiocarb have on the mammalian body? What other signs/symptoms would Jimmy display? Can this chemical cause death? Why?
Determine the pH and pOH for each of the following solutions: a)[OH^-]=1.0x10^-7 M b)[H3O^+]=4.2x10^-3 M c)[H3O^+]=.0001 M d)[OH^-]= 8.5x10^-9 M
Give an example of a biological reaction in which water participates as a reactant and a reaction in which it participates as a product.
The isomerization of methyl isocyanide, CH3NC CH3CN, follows first-order kinetics. The half-lives were found to be 161 min at 199°C and 12.5 min at 230°C. Calculate the activation energy for this reaction.
A semiconductor of n-type is know to have an electron concentration of 3 x 1018 m-3. If the electron drift velocity is 100 m/s in an electric field of 500 V/m
What is the formal charge on the central chlorine atom in the molecular ion [ClO4]-. Assume that all of the Cl-O bonds are single bonds
From the mean bond enthalpy data given below, estimate the enthalpy change for the complete combustion of one mole of butene at 298 K. (The molar enthalpy of vaporization of water is 45.0 kJ mol-1 at 298K)
What is the final temperature after 336J of heat energy is removed from 25.0g of Water at 19.6C
The combustion of 135mg of an unknown hydrocarbon produces 440mg of CO2 and 135mg of H2O. The molar mass of hydrocarbon is 270g/mol. determine the empirical and the molecular formulas of the hydrocarbon
What about formation of a monobrominated alkane -- from an alkene. What sort of addition reaction (see the list of possible reagents in section 4.6 (12.6) does give a monoborminated alkane, when reacting with an alkene.
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