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Be sure to answer the parts.
How many molecules are contained in each of the following number of moles?
Report your answer using two significant figures.
a. 1.9 mol of penicillin molecules
b. 0.71 mol of NH3 molecules
24
a./1.1
lecules
23lecules
b. 4.8
x Lol

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)