Lecture 3 (10am) Chapter 3 and 4 September 8 2009

# Lecture 3 (10am) Chapter 3 and 4 September 8 2009 - Exam...

This preview shows pages 1–6. Sign up to view the full content.

Exam Room Assignments (These are also posted on our LMS site) 1110-01 DCC 318 1110-04 DCC 330 1100-09 Sage 3303 1100-11 DCC 308 Extra Time Students Walker 3221 Reminder: “High School Knowledge Exam” is on Wednesday (September 9 th ) at 8am. Make sure that you bring a #2 pencil and a scientific calculator (NO Graphing Calculators Allowed)

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

View Full Document
Chapter 3 and 4 Lecture 3 September 8 2009
Preparing and Diluting Solutions How to prepare 1 Liter of a 2.0M aqueous solution of X: 1.weight out appropriate amount of X 2.dissolve X in ~500mL of H 2 O (solvent) in 1.0L volumetric flask (see picture on right) 3.Fill volumetric flask to mark with H 2 O (cap and invert to mix thoroughly)

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

View Full Document
Sodium chlorate is used as an oxidizer in the manufacture of dyes, explosives and matches. Calculate the mass of solute needed to prepare 1.575 L of 0.00250 M NaClO 3 (Molar Mass = 106.45 g/mol) A. 419 g B. 169 g C. 0.419 g D. 0.169 g E. 0.00394 g
dissolve exactly one mole of X in exactly one liter of water. A. True

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

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

{[ snackBarMessage ]}

### Page1 / 30

Lecture 3 (10am) Chapter 3 and 4 September 8 2009 - Exam...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online