ORG-25

E-factor

Sheldon.

Reading speed

OrganicE-factor

Governing equation

E=m_{\\mathrm{waste}}/m_{\\mathrm{prod}}

where

m_w: Waste (kg)
m_p: Product (kg)
E: E (—)

Lecture brief

Historical brief

Hammett (1937) and Taft linear free-energy, E-factor green metrics, Woodward–Fieser UV and Claisen equilibria are how organic chemistry became predictive. The lab is substituent, waste and tautomer. This sheet (ORG-25 — E-factor) is the form associated with E-factor. Working symbols: $m_w$ , $m_p$ $\rightarrow$ $E$ . Sheldon.

Purpose

Purpose: compute

E

from

m_w

m_p

in Organic chemistry via

E=m_{\\mathrm{waste}}/m_{\\mathrm{prod}}

Sheldon. Use it when a real organic chemistry question must be answered in SI before a code check.

Live realistic example

In symbols

Live case. Given

m_w = 5.000\,\mathrm{kg}

m_p = 1.000\,\mathrm{kg}

, the governing relation

E=m_{\\mathrm{waste}}/m_{\\mathrm{prod}}

yields

E = 5.00\,\mathrm{—}

. Sheldon. Move a slider: the numbers are this situation, not a canned story.

Calculator

Inputs

Waste m_w5 kgProduct m_p1 kg

Outputs

E E5.00 —

Reading speed

Watch on YouTube

Free library

Full library

Free PDF / open book

YouTube channels

00:0 / 00:08

Narration of this film

Sheldon.

Reading speed

Watch on YouTube