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Write an equation for the acid-base equilibrium of aniline and water. Label each species in the equilibrium as either an acid or la base
A Sample of water under study was found to boil at 102°C at normal atmospheric pressure is the water pure, will this water freeze at 0°C. comment.
In basic solution, hypochlorite ions, oxidize chromite ions, to chromate ions, and are reduced to chloride ions. Write the balanced net ionic equation for this reaction.
"Our energy supply is running out." true or false and why?
Derive an expression for isothermal reversible expansion of a gas from a volume
V1 to V2.
The reaction between solid white phosphorus and oxygen produces solid
tetraphosphorusdecoxide (P4O10).
a. Write the balanced chemical equation of the reaction. ( 5 points)
b. Determine the mass of tetraphosphorusdecoxide (P4O10) formed if 25.0 g of
phosphorus (P4) and 50.0 g of oxygen (O2) are combined. ( 5 points)
c. How much of the excess reactant remains after the reaction stops? (5 points)
Consider the following reaction in a container with a movable position:
A(l) + B(l) = C(g)
The ΔE for this reaction is 760 J. As the position moves up, the system absorbs 839 J of heat from it's surroundings.
1) Is work done on this system?
2) How much work?
In terms of heat flow, explain briefly:
1) Why silverware feels cold to touch
2) Why you feel cool after alcohol is rubbed on your skin
Consider the reaction MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O. If the both the
reactants have a mass of 100 grams, which of the two will be used up first? How
many grams of MnCl2 will be produced after the reaction? (MnO2 =
86.94 g/mol, HCl = 36.46 g/mol, MnCl2 = 125.8 g/mol)
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