A recipe requires 10 grams of salt. According to Weber’s constant for saltiness, which is 1/5, how much more salt must a chef add to make the recipe noticeably saltier?

Question

asked Apr 24, 2021 54.4k views

1 Answer

Gordon Bean · Answer 1 · 2021-04-30T14:46:52+0000

Answer:

2 grams of salt must be added by chef to make the recipe noticeably saltier.

Step-by-step explanation:

Weber's Law :

$k=(\Delta I)/(I)$

Where =

I = Initial stimulus intensity

ΔI = Difference threshold

k = Weber constant

According to Weber’s constant for saltiness , k=
(1)/(5)

Amount of salt required for the recipe , I= 10 g

$(\Delta I)/(10 g)=(1)/(5)$

$\Delta I = 2 g$

2 grams of salt must be added by chef to make the recipe noticeably saltier.