3) We are tasked with figuring out whether an iron paperweight is hollow. It has a mass of 239.0 g and
a volume of 43.0 mL. Solid iron has a density of 7.8
g/mL. What is the density of the paperweight, and
could it be hollow?

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Word equation for k+ h2o yield koh + h2