The density of Unknown Metal B is $65\mathrm{.}68l\frac{b}{g}al.$ What is the density of Unknown Metal B in units of $\frac{g}{m}L?(1$gal$=3\mathrm{.}785L$ and $1lb=453\mathrm{.}592g$ Be sure to round your answer to the correct number of significant figures. $\frac{g}{m}L$ The density of Unknown Metal B is $65\mathrm{.}68l\frac{b}{g}al.$ What is the density of Unknown Metal B in units of $\frac{g}{m}L?(1$gal$=3\mathrm{.}785L$ and $1lb=453\mathrm{.}592g$ Be sure to round your answer to the correct number of significant figures. $\frac{g}{m}L$