Pre-lab Answers . 1. What is sodium polyacrylate? Sodium polyacrylate is a water soluble polymer. The chemical structure of the polymer is shown below. The basic polymer is poly(acrylic acid), which has a carboxylic acid group on each repeat unit. In sodium polyacrylate, the carboxylic acid groups are neutralized with a sodium counter-ion. 2. What is the difference between hydrophilic and hydrophobic? Which part of a diaper is hydrophobic? Hydro mean water. Philic mean loving, so hydrophilic is water loving. Phobic means hating, so hydrophobic is water hating.
Symptoms of a Bad Oxygen Sensor. When you have a bad oxygen sensor, your vehicle will run less efficiently, it can sometimes have a poor idle, erratic jerking at steady throttle, hard starting problems, cause the check engine light to come on, and will cause high fuel consumption.owever, replacing an oxygen sensor is a job that you can do yourself, (as long as the O2 sensor is not completely rotted into the pipe or catalytic converter) thereby saving you precious time and money. Letâs take a closer look at just what an oxygen sensor does and the steps you can take to do the work yourself.
S ymptoms of a BAD MAP Sensor. The most obvious symptom, you'll see when the manifold absolute pressure (MAP) sensor fails, is the check engine light (CEL) shining nice and bright on your instrument cluster. You'll also see one or several of the following symptoms: 1  Diagnostic Trouble Codes:mage of. The MAP sensor has 3 wires coming out of its connector. Each wire (circuit) is identified by a letter on the connector itself (if you take a close look at the connector, you'll see the letters A, B, and C embossed on it). Each wire (circuit) has a specific job to do and below are those job descriptions.