https://padlet.com/katherinegryctz/82wn9ctklodjf4uj Finding where students performed well and where they struggled on the 2019 AP Chem Exam en-us 2020-07-11 19:01:18 UTC 2020-07-14 19:59:23 UTC hello@padlet.com https://padlet.net/icons/png/2697.png https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654318005 Understand the relationship between temp/KE and velocity
Particle diagrams could be used as a resource as well as online simulations connecting energy and particle movement]]> 2020-07-14 16:16:23 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654318005 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654320136 2020-07-14 16:18:36 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654320136 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654320340 Can not make connections between real and ideal gases
Wanted to use IMF as explanation for everything]]> 2020-07-14 16:18:52 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654320340 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654322961 Making sure to be aware of limiting reactants]]> 2020-07-14 16:21:23 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654322961 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654323866 Students were able to use oxidation numbers to determine what was being reduced.

Students were able to perform calculations between moles, volume, and concentration.]]> 2020-07-14 16:22:10 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654323866 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654323914 Knowing the difference between moles and molarity.]]> 2020-07-14 16:22:14 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654323914 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324652 Understanding ionic compound properties.]]> 2020-07-14 16:23:08 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324652 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324733 Most of the students confused intramolecular forces for intermolecular forces and they calculated Delta H incorrectly by neglecting reaction stoichiometry]]> 2020-07-14 16:23:16 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324733 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324877 Understanding experimental process such as gravimetric analysis.

Have students practice looking at errors in lab work

Complete lab work.]]> 2020-07-14 16:23:26 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324877 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324883 Students struggled to read glassware correctly (if we remember correctly, there was an issue with this question and the numbers didn't match up). SP 2.C, 3.A

Students struggled with the basic concepts of oxidation and reduction, what they are and how to apply oxidation numbers to a polyatomic ion. 4.9

Students struggled with significant figures and conversions.

Students struggled to understand the procedures that were occurring in the experiments. SP 2.D, 4.6





]]> 2020-07-14 16:23:26 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654324883 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654325343 Students mixed up oxidation/ reduction. 
They struggled with calculating the oxidation of an element in a polyatomic ion

]]> 2020-07-14 16:24:02 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654325343 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654325611 Students confused hybridization with electron configuration--> make sure students understand hybridization is involved in bonding and electron configuration.

Students couldn't properly identify which elements form H-bonds--> clarify that an H bond must be between an H atom and an atom with a lone pair

Students made simple math errors with conversions and rounding --> emphasize these skills early in the year and practice often]]> 2020-07-14 16:24:22 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654325611 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654326199 Utilizing a RICE table Keep Practicing!]]> 2020-07-14 16:24:54 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654326199 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654326933 Understanding of water on concentration.]]> 2020-07-14 16:25:39 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654326933 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654326937 sig figs and conversion between ml and L]]> 2020-07-14 16:25:39 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654326937 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654328771 Students for the most part were able to apply atomic structure concepts to explain why I2 had the longest bond length of the halogens]]> 2020-07-14 16:27:32 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654328771 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654329278 Students should spend more time with lab based questions incorporating molar relationships and molarity.  Limiting reactant questions should also be addressed more frequently.


]]> 2020-07-14 16:27:59 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654329278 nwright69 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654329538 Connecting temperature to solubility.

]]> 2020-07-14 16:28:17 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654329538 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654330815 2020-07-14 16:29:43 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654330815 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654477736 Qn #3 2019

]]> 2020-07-14 19:45:36 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654477736 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654478153 balancing equations
lab error explanation (practice doing labs)]]> 2020-07-14 19:46:19 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654478153 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654480246 initial vs equilibrium concentrations (practice RICE tables)
buffer calculations]]> 2020-07-14 19:49:22 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654480246 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654481325 Part a - Identifying the order of the reaction based on the graph

]]> 2020-07-14 19:51:04 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654481325 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654481340 a) students had an understanding of periodic trends
(d) students were aware of proper units for pressure
e) students expressed concentration with brackets]]> 2020-07-14 19:51:06 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654481340 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654481669 -Writing the rate law (writing "Rate =", including k, including products, order is sum of exponents) 
Remedy - Practicing writing correct rate laws, checklist of steps for each type of problem 
-Determining if the mechanism matches the rate law (didn't discuss how molecularity of RDS matches the rate law)
Remedy - teach students how to mark up problem (mark RDS), and justify correctly. ]]> 2020-07-14 19:51:39 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654481669 https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654483414 (C) Students confused intra vs intermolecular forces.
(f) and (g) Students ignored the reaction stoichiometry when making calculations.

]]> 2020-07-14 19:54:34 UTC https://padlet.com/katherinegryctz/82wn9ctklodjf4uj/wish/654483414