Prelab - Study guides, Class notes & Summaries

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If you are unsure which layer of your separatory funnel is the organic layer and which is the aqueous layer, which of these is the safest way to figure it out? - correct answers Add a few drops of water to each layer to see if the water mixes in (aqueous layer) or forms a separate layer (organic) How do you know when you have used a sufficient amount of sodium sulfate? - correct answers When some of the sodium sulfate is powdery or free flowing When should you throw out the layer from the ...

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Assume you have a mixture that is 20% acetone 50% cyclohexane, and 30% dimethyl carbonate. Sketch a GC of this mixture. Label each peak and make each peak roughly the correct size. - correct answers On a graph of abundance vs time, acetone comes off first, then cyclohexane, then dimethyl carbonate. The sizes are in a 2:5:3 ratio. The pKa of benzoic acid is 4.2. At a pH of 2.0, 4.2, and 12.0, in what state(s) of protonation will benzoic acid be? And in which layer (water or organic) would...

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MPP 3202 Prelab 4 Study Guide Test. Na+, K+ - CORRECT ANSWER Primary active transport uses the energy obtained from cleaving ATP to pump _____ ions out of the cell and _____ ions into the cell. false - CORRECT ANSWER True or False. As soon as there is a large concentration gradient of an ion, the ion immediately flows back down its concentration gradient. low; higher - CORRECT ANSWER In a resting cell, the membrane permeability to sodium is: low or high _____ and the membrane permeabi...

What is the glacial drift, till? - ANSWERSSand, silt and clay this is in layers from deposition by glaciers What is formed when a continental glacier remains in one position for 50 to 300 years? - ANSWERSA recessional moraine Which of the following is found in Illinois? - ANSWERSa terminal moraine Which would you not find in Illinois? - ANSWERSarête What is the most common glacial feature in Kane County? - ANSWERSMoraine Which landform that is common in Illinois, is formed perpen...

MPP Prelab 9 Final Exam Study Test. The valves have to contract to open or relax to close. - CORRECT ANSWER Select the FALSE statement regarding valves in the heart. true - CORRECT ANSWER The left ventricle must generate more pressure than the right ventricle because the left ventricle is required to drive blood throughout the body and the right ventricle just drives blood to the lungs (which are very near the heart). systole; diastole - CORRECT ANSWER For blood to flow there must be ...

MPP 3202 Prelab 6 Questions & Answers. one; lower motor neuron - CORRECT ANSWER In the somatic motor neuron pathway, how many neurons run from the spinal cord to the target skeletal muscle cell (the peripheral nervous system)? What is the name of this/these neuron(s)? NAChR - CORRECT ANSWER What type of ligand gated sodium channels are located at the skeletal muscle membrane in the neuromuscular junction? reuptake; pre - CORRECT ANSWER The 3 ways that neurotransmitters can be removed...