what volume of 0.125 copper(II) chloride solution required to react completely with 5.50g of aluminum?
The insulation alone is between 11-13the sheathing and drywall might give you one more but is not rated.
3 1/2 fiberglass has an R value of 13
The r-value is based on the insulationDrywall and OSB do not factor in the R ratingThe R-value can be found on the packaging of the insulation, and there are more than one typeThe only way that I know of that you can change the actual R value is by using a vapor barrier.
use molar mass to find moles 5.50g of aluminum 26.98 g/mol 0.2039 moles of Al by the equation: 2 Al 3 CuCl2 - 3 Cu 2 AlCl3 0.2039 moles of Al reacts with 3/2 's as many moles of Cu 0.3058 moles of Cu find volume 0.3058 moles of Cu 0.125 mol / Litre copper(II) chloride solution 2.446 Litres yoiur answer , rounded to 3 sig figs is 2.45 Litres of CuCl2 solution