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Gen Chem 2
Chem 2
5
Chemistry
Undergraduate 1
11/03/2012

Additional Chemistry Flashcards

 


 

Cards

Term
Activation Energy
Definition

Ea=-R[ln(k2/k2)][(1/T2)-(1/T1)]^-1

Term
Changes that increase reaction rate
Definition

Increasing concentration of reactions

 

Increasing surface area of reactants

Term
Calculate pH in various points with titration of weak acid and strong base
Definition

At equivalence point, the pH calculation depends on the conjugate base A¯ and H2O

Initial [H3O+] is calculated from [HA]initial and Ka

At the equivalence point, [A¯]= initial moes of HA/ total volume.

Term
For ionic compounds that have the same totatl number of ______ in their formulas, the larger the Ksp vlue, _____ soluble the compound.
Definition
ions, more
Term
The solubility of MgCO3 in water at 25°C is equal to 1.6X10¯³ g per 100mL. Which of the following options correctly reflect the steps required to calculate Ksp for this compound?
Definition

The molar solubility will give both [Mg²+] and [CO3²-].

 

Calculate molar solubility by converting g/100mL to mol/L.

 

Calculate the molar mass MgCO3.

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