Answer:
![\rho_t=1025000 gmL^{-1}](https://tex.z-dn.net/?f=%5Crho_t%3D1025000%20gmL%5E%7B-1%7D)
Explanation:
From the question we are told that:
Density of acetic acid ![\rho_a=205 gL^{-1}](https://tex.z-dn.net/?f=%5Crho_a%3D205%20gL%5E%7B-1%7D)
Density of Water ![\rho_w=820 gL^{-1}](https://tex.z-dn.net/?f=%5Crho_w%3D820%20gL%5E%7B-1%7D)
Generally the equation for Solution Density is mathematically given by
![\rho_t= \rho_w+\rho_a](https://tex.z-dn.net/?f=%5Crho_t%3D%20%5Crho_w%2B%5Crho_a)
![\rho_t=205+820](https://tex.z-dn.net/?f=%5Crho_t%3D205%2B820)
![\rho_t=1025 gL^{-1}](https://tex.z-dn.net/?f=%5Crho_t%3D1025%20gL%5E%7B-1%7D)
![\rho_t=1025000 gmL^{-1}](https://tex.z-dn.net/?f=%5Crho_t%3D1025000%20gmL%5E%7B-1%7D)
True! You can use the percentage to determine the amount of moles of each substance in the compound, and then use that information to find the empirical formula.