tut9 - CHEM 1E03 TUTORIAL # 9 _ 1. Are solutions of the...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
CHEM 1E03 TUTORIAL # 9 ______________________________________________________________________________ 1. Are solutions of the following salts acidic, basic or neutral? Write balanced chemical equations for the reactions causing the solution to be acidic or basic, as appropriate. (a) KBr (b) NaCN (c) (C 5 H 5 NH)ClO 4 2. You have 0.10 M aqueous solutions of HClO 3 , NaClO 3 , HClO 2 and NaClO 2 . Which answer below correctly lists these solutions in order of increasing pH (from lowest pH to highest pH)? (A) HClO 3 < NaClO 3 < HClO 2 < NaClO 2 (B) HClO 2 < HClO 3 < NaClO 3 < NaClO 2 (C) HClO 3 < HClO 2 < NaClO 2 < NaClO 3 (D) HClO 2 < HClO 3 < NaClO 2 < NaClO 3 (E) HClO 3 < HClO 2 < NaClO 3 < NaClO 2 3. Identify the CORRECT statement(s): (i) S may be given in units of J·mol -1 . (ii) S(system) > 0 for the dissolution of NaCl(s) in water. (iii) The sign of S(reaction) is determined by the sign of H(reaction). (iv) A reaction is always spontaneous if
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/18/2010 for the course ENGINEERIN 1E03 taught by Professor Okon during the Spring '10 term at McMaster University.

Page1 / 2

tut9 - CHEM 1E03 TUTORIAL # 9 _ 1. Are solutions of the...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online