Chem 101 lab exam - Study guides, Class notes & Summaries

CHEM 101 Lab Exam Questions and Answers All Correct When titrating vitamin C with KIO3 (Iodate), the following steps occur (once KI and HCl are added) - Answer-1) The iodate anion reacts with I- and H+ to form I2 2) Once formed, I2 is reduced immediately by vitamin C back to I-. As each I2 reacts with one C6H8O6, each IO3- that is added results in the reaction of 3 C6H8O6 molecules 3) After all of the vitamin C in the sample has been consumed, the I2 from the addition of more iodate reacts r...

CHEM 101 Lab Exam Questions With All Correct Answers What type of spectrum is emitted by gaseous discharge tubes? - ANSWER- A discontinuous spectrum White light from the sun emits what type of spectrum? - ANSWER- A continuous spectrum from red to violet How are photons emitted in discharge tubes? - ANSWER- As the excited atom returns to a lower energy state, photons are emitted What are 3 common applications of light emission by elements? - ANSWER- 1) The flame test 2) Fireworks 3)...

Chem 101 Exam Unit 1 General Chem/Lab Safety With 100% Correct And Verified Answers

UNA Chem 101 Lab 6 Exam Graded A+

CHEM 101 LAB EXAMINATION QUESTIONS ANSWERS The correct answer is: The different sized aquariums The correct answer is: There must always be quantifiable data The correct answer is: Repeat the exact same procedure. The correct answer is: To include a variable that could influence experimental results, but is not related to the hypothesized change. The correct answer is: True The correct answer is: Percent error ...

Preparing for the Exam As you prepare to take the National Council Licensure Examination, you may feel over- whelmed and frustrated. There is so much material to review and so many decisions to make. Where do I begin? Most graduates feel that way. This chapter will help you to become aware of the NCLEX® test plan and to know the types of questions you will encounter on the exam. The NCLEX-PN® consists of questions from the cognitive levels of knowledge, compre- hension, application, and anal...

Quality control for point-of-care testing must be performed - ANSWER Each day of use When collecting blood from an artery for arterial blood gases (ABG) it is not necessary to pull back on the plunger of the syringe because - ANSWER Arterial blood is under pressure from the concentration of the ventricles If a patient indicates that he/she is not fasting, the phlebotomist should: - ANSWER Ask the patients nurse if the sample should be collected at this time When performing a skin punctu...

A 65-year-old man is seen for loose stools 3 times per day for 1 week. Two weeks prior he began a 6-week course of ciprofloxacin for prostatitis. There is no blood in his stool. His past medical history is notable for atrial fibrillation, hypertension, and gout. He takes atenolol, warfarin, hydrochlorothiazide, and allopurinol. He smoked 2 packs per day for 30 years but quit 10 years ago. He no longer drinks, but he drank heavily until 10 years ago. He does not use drugs. He works as a plumber. ...

CHEM 101: Lab Exam Questions and Answers Graded A What type of spectrum is emitted by gaseous discharge tubes? - Answer-A discontinuous spectrum White light from the sun emits what type of spectrum? - Answer-A continuous spectrum from red to violet How are photons emitted in discharge tubes? - Answer-As the excited atom returns to a lower energy state, photons are emitted What are 3 common applications of light emission by elements? - Answer-1) The flame test 2) Fireworks 3) Office flu...