To help some people sleep, they $11$ have a glass of milk before bed. The reason is that

milk contains the amino acid tryptophan, which produces serotonin, which can calm

the brain's activity and help to bring on sleep. Calculate the mass $($in g$)$ of tryptophan

in a $0\mathrm{.}25$ quart of milk. Assume there is $2\mathrm{.}0\%$ tryptophan in milk, the density of milk

is $1\mathrm{.}04k\frac{g}{L},$ and $1L$ is $1\mathrm{.}05669$ quarts.