Question

Consider the following reaction:

Cu(s) + 2 AgNO3 (aq)→Cu(NO3)2(aq)+2Ag(s)

In a rate experiment, a coil of copper wire is placed into a solution of silver nitrate. The following data are recorded:

Time (hours) 0.0 3.45
Mass of Copper (g) 4.0 2.12

Calculate the rate of this reaction.
A) 0.84 g/hour

B) 1.23 g/hour

C) 0.42 g/hour

D) 1.15 g/hour

Answer 1

The rate of the reaction can be determined by calculating the change in mass of copper per unit time. In this case, the rate of the reaction is approximately 0.546 g/hour.

Step-by-step explanation:

The rate of the reaction can be determined by calculating the change in mass of copper per unit time. To do this, we use the formula:

Rate = (Final mass - Initial mass) / Time

In this case, the initial mass of copper is 4.0 g, the final mass is 2.12 g, and the time is 3.45 hours. Plugging these values into the formula, we get:

Rate = (2.12 g - 4.0 g) / 3.45 hours

Simplifying the equation gives us:

Rate = -1.88 g / 3.45 hours

Therefore, the rate of the reaction is approximately 0.546 g/hour.