Increasing the surface area of a reactant increases the frequency of collisions and increases the reaction rate. Several smaller particles have more surface area than one large particle. The more surface area that is available for particles to collide, the faster the reaction will occur.
This is a redox reaction.
Cu²⁺ + 2e⁻ = Cu⁰ copper is the oxidizing agent
Fe⁰ - 2e⁻ = Fe²⁺ iron is the reducing agent
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Answer:
How does the decrease in confidence affect the sample size required
is approximately 141
Explanation:
Compute Sample Size
n = (Z a/2 * S.D / ME ) ^2
Zα/2 at 0.01% LOS is = 2.58 ( From Standard Normal Table )
Standard Deviation ( S.D) = 18.4
ME =4
n = ( 2.58*18.4/4) ^2
= (47.472/4 ) ^2
= 140.849 ~ 141