a compound contains only hydrogen and carbon. 1.17g of the compound takes up a volume of 400 at standard temperature and pressure. calculate the molar mass of the compound.

Which of the following is most likely true about water in chemical solutions?

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)

Match each statement with the state of matter it describes