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Qualitative Cation Tests

Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Observations Questions A. Write net ionic equations for all reactions that produce a precipitate. Ag+(aq.) + Cl-(aq.) —- AgCl (s) 2 Ag+(aq.)+ 2OH- — Ag2O (s) + H2O(l) 2 Ag+(aq.)+2NH3+ H2O(l) — Ag2O (s)+ 2NH4+ (aq.) Pb2+(aq.)+2Cl- (aq.) —- PbCl2(s) Pb2+(aq.)+2OH-(aq.) —-Pb(OH)2 (s) Pb2+(aq.)+ 2NH3(aq.)+ H2O(l) — Pb(OH)2 (s)+ 2NH4+ (aq.)…

Physio Ex 9.0 Activity 1 Cell Transport Mechanisms and Permeability

ACTIVITY ONE- Cell Transport Mechanisms and Permeability: Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. Molecular weight affects the rate of diffusion because the bigger the size of the molecule the longer it will take to diffuse. Membrane size is another variable that affects the rate of diffusion because if the membrane’s pores are small it will take molecules longer to diffuse though it than if the pores were larger. Also, membrane thickness is a variable because the thinner the membrane the quicker the diffusion. 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? Our prediction was…