No sorry I wrote:

Volume = mass/density

In this case it was:

Mass = Density/Volume

You have to take the volume of water and substract it from the final volume from when you added the lead:

42.6mL - 31.0mL = 11.6mL

**11.6mL** is the **volume** of the lead

the **Density** of lead is **11.34 g*cm-³**

*remember: cm-³ = mL so just change it to ***11.34 g*mL** so mL gets canceled.

Now you:

Mass = Density/Volume

Mass = 11.34 g*mL/11.6mL

you divide 11.34 into 11.6 and the mL get cancelled

you get:

Mass = 0.977586

with scientific notation

Mass = **9.8 x 10^-1g**