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Chemistry Lab

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What would happen to the reaction rate of a solution if 10 mL or more of water is added? Will the reaction rate increase or decrease?

The following reaction occurs without a change in the color
2A (g) + B2(g) --- 2AB (g)
a) How could you monitor the concentration of the reactants?
b) How would you determine the reaction orders?
c) How would you find the rate constant and the units for the rate constant?

  • Chemistry Lab -

    Doesn't adding water dilute the solution? How would lowering the concn of the reactants affect the rate?

  • Chemistry Lab -

    2a) Since all of the molecules are gases, I see three moles on the left and two moles on the right. So would that affect the pressure? Could you monitor the pressure change?
    b)& c). I assume you have had this in class. Change concn of A while holding B constant and measure rate. Do same for B and A (but reversed). That will give orders. Then plug in rates, concns, and orders to determine k.

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