That’s definitely a typo, John" 1g + 0.865g is 1.865g, not 1.965g
(the 9 is the typo).
Sorry to be a “math nerd”, but this is a standard “mixture” type
problem in algebra, here is a page site that has some review for those
of you willing to understand the maths:
the bottom of that page has an example that pertains (the acidic
solution), also some on the second page. If you fear math, don’t look
at the whole page, just follow along one word at a time, one step at a
It is a classic middle school problem and all the more reason why
math IS important and DOES play into the real world The point is to
know what you’re working with, and to be able to adapt what you have
to what you need, Shannon.
Anyone who missed it, and wants to know: please look back on my post
from 5 days ago; 1.7g of pure per g of 80% will get you just past
where you want to be, or more aptly, it will allow for a margin of
operational error (scale accuracy, oxidation, etc).
PS - Tangentially: Do most of the group members’ customers seek sterling
quality, or is “silver” enough to satisfy sales needs in most cases?