

Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
cm3 in3. 1 mL = 1 cm3, 1 mL = 10−3 L. 1 in. = 2.54 cm. L. mL g kg ... 1 cm3 = 10-6 m3 = 0.000 001 m3 ... g/cm3. Convert the density to units of kg/m3.
Typology: Schemes and Mind Maps
1 / 2
This page cannot be seen from the preview
Don't miss anything!
Always write every number with its associated unit. Always include units in your calculation. you can do the same kind of operations on units as you can on numbers using units as a guide to problem solving is called dimensional analysis Conversion factors are relationships between two units Conversion factors can be generated from equivalence statements (e.g. 1 inch = 2.54 cm) Arrange conversion factors so the starting unit is on the bottom of the first conversion factor
Conceptual Plan
Systematic Approach to Problem Solving
Convert 5.70 L to cubic inches Sort Information Given: Desired:
in. 3 Strategize Conceptual Plan Relationships:
Follow the conceptual plan
3
Sig. figs. and round Round^ 347.835 in.^3 = 348 in.^3 (3 sig. fig.)
Check units are correct; number makes sense: in.^3 << L
Density as a Conversion Factor
What is the mass in kg of 173,231 L of jet fuel whose density is 0.768 g/mL? Sort Information Given: Desired:
173.231L, density = 0.768 g/mL Mass, kg Strategize Conceptual Plan Relationships:
Follow the conceptual plan
(^5) kg
Sig. figs. and round Round^ 1.3304 x 10^5 kg = 1.33 x 10^5 kg
Check units and number makes sense
1 mL = 0.768 g (from density) 1 mL = 10−^3 L, 1 kg = 1000g
Density (g/cm3, g/mL)
conversion factor Mass Volume
L mL cm^3 in 3 1 mL = 1 cm 3 , 1 mL = 10−^3 L 1 in. = 2.54 cm.
L mL g (^) kg
Volume ( 1 mL = 1 cm^3 ) solid volume (cubic centimeters, cm^3 ) liquid or gas volume (milliliters, mL) 1 m^3 = 10 6 cm^3 1 cm^3 = 10 -6^ m^3 = 0.000 001 m^3
1 mL = 0.001 L = 10 -3^ L 1L = 1 dm^3 = 1000 mL =10 3 mL
Practice Problems
References: Tro, Chemistry: A Molecular Approach 2 nd^ ed., Pearson Brown/LeMay/Bursten, Chemistry: The Central Science, 12 th^ ed., Pearson
Answers
. a)1.2 nm; b) 22 fs; c) 1.5 Gg; d) 3.5 ML 1
mg 8 e) 1.10 x 10 3 m -5 g; b) 0.40 nm; c) 575 μm d) 6.83 x 10 -2. a) 2.55 x 10 2 3. 808 kg/m^5^ g 3. 1.30 x 10^4 3. 50.35 cm^3