Please enable JavaScript.
Coggle requires JavaScript to display documents.
Stephanie Yeung Per. 3 (Empirical (Carbon dioxide, Water, and Nitrogen…
Stephanie Yeung Per. 3
Empirical
percent to mass
Assume that there is 100 g of each substance. For example, if there is 50% of H, 33% of C, and 17% of C, asume that there is 50 g H, 17 g C, and 17 g C.
mass to mol
Mass of substance times 1mol/atomic mass. For example, 50 g H × 1 mol/1.01 g
-
multiply till whole
If any mol is a decimal, multiply each mol by a number until all of the moles are whole numbers. For example, if there is 1.50 g H, mulitply all moles by 2, so H is 3, a whole number.
Carbon dioxide, Water, and Nitrogen compound
-
-
-
-
-
Gas
PV = nRT
-
-
-
-
P = pressure in atm, mmHg/torr, Pascals
-
-
PVnRT = PVnRT
If a substance is collected over water, find the water vapor pressure using Daton's Law of Partial Pressures. Ptotal = Psubstance+ Pwater vapor ... Water vapor pressure can be found using a chart based on its tempature (°C).
-
Thermoenergy
-
Solving for q (Joules)
When solving for Joules, make separate equations each time water has a phase change. Then, add up those Joules to get the total heat gained (+) or lost (-).
-
-
Other
-
-
convert basic unit to kilo: g - kg, Pa - kPa, J - kJ
use acronym khdbdcm: From b (basic unit) to k (kilo-) move decimal place 3 units to the left. From k (kilo-) to b (basic unit) move decimal place 3 units to the right.