Chapter_3b-B

Chapter_3b-B - Chapter 3b(3.4 3.6 3.11 Stoichiometry...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 3b (3.4 – 3.6 & 3.11) Stoichiometry
Background image of page 1

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

View Full DocumentRight Arrow Icon
Counting molecules/atoms How many molecules of methanol, CH 3 OH, (32.042 g/mol) are there in 25.0g of methanol. 25.0 g CH 3 OH x x = 4.70 x 10 23 C atoms 4.70 x 10 23 O atoms 1.88 x 10 24 H atoms
Background image of page 2
Chemical Equations At the heart of chemistry is Chemical change = C 6 H 12 O 6(s) + 4KClO 3(l) 6CO 2(g) + 6 H 2 O (l) + 4 KCl P 4(s) + Cl 2(g) 2 Mg(s) + O2(g) Chemical equations are to chemistry what Formal structure of communicating chemical change
Background image of page 3

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

View Full DocumentRight Arrow Icon
Chemical equations must include: 1. Yield indicating ( left to right, generally) 2. Correct of (starting chemicals) 3. Correct of (ending chemicals) 4. (1 may be excluded) Represent ratios of moles or atoms / molecules C C 6 6 H H 12 12 0 0 6 6 (s) (s) + 4 KClO + 4 KClO 3 3 (l) (l) + 6 H + 6 H 2 2 0 0 (l) (l) + 4 KCl + 4 KCl (aq) (aq)
Background image of page 4
Chemical equations may include: 1. Energy required (hν) (Δ) 1. States of matter 1. Time required C C 6 6 H H 12 12 0 0 6 6 (s) (s) + 4 KClO + 4 KClO 3 3 (l) (l) 6 CO 6 CO 2 2 (g) (g) + 6 H + 6 H 2 2 0 0 (l) (l) + 4 KCl + 4 KCl (aq) (aq)
Background image of page 5

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

View Full DocumentRight Arrow Icon
Chemical equations do not include: 1. involved 2. as a reactant / product C C 6 6 H H 12 12 0 0 6 6 (s) (s) + 4 KClO + 4 KClO 3 3 (l) (l) 6 CO 6 CO 2 2 (g) (g) + 6 H + 6 H 2 2 0 0 (l) (l) + 4 KCl + 4 KCl (aq) (aq)
Background image of page 6
All equations must be balanced!
Background image of page 7

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

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 21

Chapter_3b-B - Chapter 3b(3.4 3.6 3.11 Stoichiometry...

This preview shows document pages 1 - 8. Sign up to view the full document.

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