CHEM 1011 Study Guide - Final Guide: Methylamine, Ammonium Chloride, Buffer Solution

• School: Dalhousie University
• Department: Chemistry
• Course: CHEM 1011
• Professor: Patricia Laws

Document Summary

1) a 1. 00 g sample of a compound is combusted in excess oxygen. The products of this combustion are 2. 492 g of co2 0. 6495 g of h2o. What is the pkb of this solution: the pka of a weak acid is 4. 23. What is the new ph of the solution after. 7. 5 ml of 0. 1 m naoh is added: 90 ml of 0. 6 m nh3 is added to 10 ml of 0. 5 m hcl. What is the ph of this new solution: describe the procedure to prepare a buffer solution with a ph of 3. 34. 1)determine the volume (in ml) of 0. 0470 m strontium hydroxide (sr(oh)2) that must be added to 10. 4 ml of 0. 0877 m pyridinium chloride (c5h5nhcl) to yield a ph of. Assume the 5% approximation is valid and report your answer to 3 significant figures. 2)determine the mass (in g) of ammonia (nh3) that must be added to 904 ml of 0. 402.