Physical Chemistry Answers

How much heat in kilocalories is required to melt 1.2mol of isopropyl alcohol (rubbing alcohol; molar mass = 60.0 g/mol)? The heat of fusion and heat of vaporization of isopropyl alcohol are 21.4 cal/g and 159 cal/g, respectivel

Hello,
We've done some lab work about polymer and we had to analyse an amouth of PET with the DSC methode, and we are asked to calculate the degree of cristalinity using the DSC curve, I don't know what to do, could you please guide me?
Thank you

How to co-relate structure and property of a Lithium Titanate nano cell?

Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.04 M and [H2] = 0.08 M.
Use the formula you found in Part B to calculate the concentration of CH3OH.

If 0.5 mole of BaCl2 is mixed with0.2 mole of Na3PO4 the maximum number of mole Ba3(PO4)2 that can be formed is?

X+Y --> W+Z. Reactant X contains 199.3 J of chemical energy. Reactant Y contains 272.3 J of chemical energy. Product W contains 41.9 J of chemical energy. If the reaction loses 111.6 J of chemical energy as it produces, how much chemical energy must product Z contain?

A colourless compound weighing 0.84 on heating gives 0.22 g of CO2(carbon dioxide) and 0.09 g of H2O(water) and leaves a white residue.What is the molecular mass of the compound? Pls give the steps

35 L of oxygen at 85 C and 92,000 N m-2 is added to a 40 L stainless steel cylinder
containing carbon dioxide at 40 C and 70,000 N m-2. Calculate the final pressure in
the cylinder if after the addition the final temperature is 55 C.

Why Saturated solution of KNO3 is used to make 'salt bridge'?

PV=nRT
propane is a gas commonly used as a home fuel for cooking and heating.
calculate the volume that 0.540 mol of propane occupies at STP.
think about the size of this volume and the amount of propane that it contains. why do you think propane is usually liquified before it is transported?