Gina S. answered • 06/22/23
Tutor
New to Wyzant
Highly Experienced High School Chemistry Teacher
Prepare two same size graduated cylinder (say 10mL). Put the empty GC on a balance, and zero the balance. Add exact 10mL of H2O2 mixture (doesnot matter as long as the same amount for both of the measurements), measure its mass. Do the same for pure water. Now you have two measurements: mass of 10mL H2O2 mixture, and mass of 10mL of pure water. The difference of the mass is the mass of H2O2 in 10mL mixture.
Gina S.
opps, missed the model plot. easy, take a few more measurements with different volume and mass as data plots. graph. use calculated density as x axis and concentration (mass % they want, I assume?) as y axis.
Report
06/22/23
Stanton D.
No, it isn't. The point of the question is to instill (if that is not too harsh a term?) the realization that mixtures of liquids are not necessarily ideal. That's why the model plot is required ....06/22/23