with the density given, you can use to convert volume (mL) to mass (g)_, and vice versa. you can use the density as a conversion factor.
so if the density is 0.780 g/mL, then 0.789 g= 1 mL
now let's use this conversion factor to convert the mL to grams.
[tex]151 mL ( \frac{0.789 grams}{1 mL} )= 119 grams[/tex]
