Using R=0.0821, calculate the volume that 0.540 mol of propane gas takes up at STP

Does the energy in a solid increase or decrease when changing to a liquid?

Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)