The level of liquid kerosene rises from 85 ml to 153ml

Question

Question: You have a white crystallime solid, know to be onenofnthe potassium compounds listed below. To determine which, you measure its density. you measure out 18.82 g and transfer it to a graduated cylinder containing kerosene( in which those compounds will not dissolve). The level of liquid kerosene rises from 8.5 ml to 15.3ml. Calculate the density of the solid and identity the compound from the following list.

KF, d=2.48 g/cm³

KCl, d=1.98 g/cm³

KBr, d=2.75 g/cm³

KI, d=3.13 g/cm³