How is stoichiometry used to calculate the mass of a substance?
o
a. unit conversion factors are used to convert between units of
grams and moles.
o
b. oxidation numbers are used to convert from moles of one
molecule to moles of another molecule.
o
c. subscripts in chemical formulas are used to calculate amounts of
substances.
o
d. percent contributions are used to convert between molar mass
and mass.
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Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

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)