Prelab Questions2

Prelab Questions2 - Seleced Prelab Questions Selected...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Seleced Prelab Questions 70 Selected Prelab Questions Experiment 1: 1. What is the absorbance when transmittance is O%? What is the absorbance when transmittance is 100%? 2. A substance is known to have at its wavelength of maximum absorption a molar extinction coefficient ε of 4,000 L · mol -1 · cm -1 . Suppose that a 25.00 mL aliquot of an aqueous solution of this substance is diluted to a total volume of 100.0 mL. The absorption of this solution in a 1 cm sample cell was found to be 0.950. Determine the concentration of the original solution. 3. Formulate oxidation and reduction half reactions for the redox reaction of permanganate ion and oxalic acid, and assign oxidation numbers to carbon and manganese. 4. What does the term “autocatalysis” refer to? Experiment 2: 1. What is electronegativity and how does it relate to the polarity of a molecule? 2. Is it possible for a molecule to have polar bonds but no net dipole moment? Give an example. 3. Explain the relation between D
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

Prelab Questions2 - Seleced Prelab Questions Selected...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online