You've decided to protect your house by placing a 5.7-m-tall iron lightning rod next to the house. the top is sharpened to a point and the bottom is in good contact with the ground. from your research, you've learned that lightning bolts can carry up to 45 ka of current and last up to 50 μs. how much charge is delivered by a lightning bolt with these parameters?

Explanation:

A lightning rod or a lightening conductor is a metallic rod installed from the top of the building to a depth in the ground where a wide metallic plate of copper is connected to it.

We know that current is the rate of flow of charge.

Mathematically,

...........................(1)

where:

Given:

To determine the charge that is delivered with the above parameters:

Using the eq.(1)

  1.the balanced   chemical equation is as below

cu +   2 ag(no)₃ → cu(no₃)₂   +2 ag

2.the   much silver   produced   is   50.9 g

step 1: find the   moles of cu

moles =   mass÷   molar mass

  from periodic table the molar mass of cu = 63.5 g/mol

moles is therefore = 15.00 g÷ 63.5 g/mol = 0.236   moles

step 2: use the mole ratio to determine the   moles of ag

from equation above   cu: ag   is 1: 2

therefore the moles of ag   =0.236   moles   x 2/1 =0.472   moles

step 3: find the mass   of ag

mass = moles x molar mass

from periodic table   the molar mass of ag =107.87 g/mol

mass   = 0.472   moles x 107.87 g/mol = 50.9 g

3.   the   much   silver   collected worth is   1.797 oz

  convert   50.9 g   to oz

that is   1 gram = 0.0353 oz

          50.9 grams =?   oz

by cross multiplication

={(50.9 grams x 0.0353 oz) / 1   gram}   =1.797 oz

the answer is kevlar