Chemistry: Limting Reactants

Question

So I have been struggling on the Analysis and Conclusion part of a virtual lab I'm doing for Limiting Reactants. Just wondering if anyone can help me out:

 

-Look at the results for the fourth reaction in the Limiting Reactant Data Table. Use the steps outlined below to analyze the reaction between 75.3 grams silver nitrate and 68.7 grams sodium chloride. Work out each step on your own so that you will understand the process fully.

 

4th Reaction = Pre Reaction: AgNO3(75.3g) + NaCl(68.7g) 

                      Post Reaction: NaNO3(37.7g) + AgCl(63.5)

                      Remaining Reactant Quantities: NaCl(38g)

1. Write the complete balanced equation for the chemical reaction.
2. Convert reactant quantities to moles, using dimensional analysis.
3. Identify the limiting reactant.
4. Calculate the moles of excess reactant.
5. Convert the moles of excess reactant to grams, using dimensional analysis.
6. Use the moles of limiting reactant to determine the quantities (in grams) of each product that forms.

Answer 1

The equation is AgNO3 + NaCl gives NaNO3 + AgCl.

This equation is balanced, so the next step is to figure out the moles of reactants from the weights given. Using that information, you can determine that you have more NaCl (twice the moles) than AgCl, indicating that AgCl will be consumed first, and that it is the limiting reagent.

At this stage, you have reached step 4, and you can do step 5 using the molar mass of NaCl, and verify step 6 using dimensional analysis.

Are you having trouble with dimensional analysis?