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Following are balanced equations describing heterogeneous reactions. Choose the appropriate equilibrium expression for each.
a.) 2Na2O2(s) + 2CO2(g) ---> 2Na2CO3(s) + O2(g)
b.) NH4HS(s) ---> H2S(g) + NH3(g)
c.) 2H2S(g) + O2(g) ---> 2S(s) + 2H2O(g)
d.) MnS(s) + H2O(l) ---> Mn2+(aq) + HS-(aq) + OH-(aq)
Write an overall, balanced equation for the reaction of Na2SO3 with CH3CO2H, and name the reactants and products.
how many moles of hcl need to be added to 15.0 ml of 0.50 m naz to have a solution with a ph of 6.50? ka of hz is
Polonium crystallizes in a simple cubic lattice (the Po atoms are at the lattice points only). If the density of the metal is 9.31 g/cm3, what is the unit cell edge length in pm
A buffer is prepared by adding 3.00 g of sodium acetate (Formula Wt.=82.03g/mol) to 200 ml of 0.20 M acetic acid (Molec. Wt. = 60.053g/mol, Ka = 1.85x10-5). What will be the pH of this buffer. Assume adding the salt does not change the total volum..
What information is gained from the UV-VIS data. Compound does not contain a conjugated system.
Attractive intermolecular forces exist between the molecules in the gas. The effect of these attractive intermolecular forces in a real gas is to
The term water of hydration is applied to which to which of the following. A) water molecules required to dissolve a solid B) water molecules associated with ions in solution
Write balanced chemical equations and net ionic equations of KOH reacting with the following compounds (a) (NH4)2SO4, the reaction mixture is heated
If strong oxidizer spill occurs in the vicinity of barrels of flammable chemicals, with one of the barrels of flammable chemicals possible leaking as well, should water be used on the incident or how should mitigation proceed?
How much PV work is done in kilojoules for the reaction of 0.48 of with 0.24 of at atmospheric pressure if the volume change is -9.2
When the stopcock between the manifold and the flask is opened, the pressure in the system is 287 torr. Assuming no temperature changes, what is the volume of the manifold
A liquid placed in a closed container will evaporate until equilibrium is reached. At equilibrium, which of the following statements is false. The partial pressure exerted by the vapor molecules is called the vapor pressure of the liquid.
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