A student based the analysis of Cu(II) in a sample on the formation of the blue complex [Cu(H2O)6]+2. A standard solution was made when 1.276g of pure copper wire (MM= 63.546g/mol) was weighed, dissolved in concentrated HNO3, and diluted to 1.00x102mL.

Question

A student based the analysis of Cu(II) in a sample on the formation of the blue complex [Cu(H2O)6]+2. A standard solution was made when 1.276g of pure copper wire (MM= 63.546g/mol) was weighed, dissolved in concentrated HNO3, and diluted to 1.00x102mL. 
The stock solution was used to make a dilution by mixing 4.00mL of stock solution with 46.0mL of deionized water. Colorimetric determination gave that the absorbance of the sample was 0.1776 when the path length of the light through the solution was exactly 1cm. 
Calculate the transmittance of the solution.

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