Answers+to+Ch7

014 m ag 2 so4 2 0028 m ksp 0 0282 0

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: From (a) assume [HCO 3- ] = 1.000 M , then [H2 CO3] = 0.091 M [H2 CO3 after conversion = 0.091 − (0.15 ×0.091) = 0.077 M [HCO 3- after conversion = 1.000 + (0.15 ×0.091) = 1.014 M [H+ ] = 4. 4×10−7×(0. 077/1. 014)= 3. 34×10−8 M ; pH = 7.48 3 53. pH = 4.50 ; [H+ ] = 3. 2×10−5 M mol Lac− = mol NaLac = (250.0 g)(1 mol/112.1 g) = 2.230 mol [H+ ] = Ka (mol HLac...
View Full Document

This note was uploaded on 02/13/2014 for the course CHEM 1024 taught by Professor Dr.zhifengding during the Winter '12 term at UWO.

Ask a homework question - tutors are online