1. Matter and Measurement
Chapter 1 Examples
Matter and Measurement

2. - To those whom much is given, much is expected.
John F. Kennedy

3. Chemistry Help Center
M-Th 7:30-9:30 Keyes 104

4. Calculate the mass of 10.0 mL of CCl4 (l).
Given: d = g cm-3

5. Calculate the mass of 10.0 mL of CH4 (l). Given: d = 1.595 g cm-3
w = g/mL 10.0 mL = g
w = d V

6. Always check units– helps to correct mistakes
always give units
ratios are always unitless: mass % = (15 g/100 g) 100% = 15 %

7. Find – 11.2

8. Find 12.56 – 11.2 11.2 1 SFPDP 1.36 Final answer: 1.4 1 SFPDP
Align the decimal points: SFPDP
SFPDP
1.36
Final answer: SFPDP