A wet free-milling gold ore sample weighing 150 kg was delivered to an assayer to determine the grade of gold in the ore. The moisture content of four replicate samples from the bulk material were determined (Table 1). The team also took triplicate samples weighing 50 g (dry weight) each for fire assaying, and the average gold content per sample was 0.35 mg. a) Find the average percent moisture of the bulk material. b) Estimate the quantity (in mg) of gold in the sample. Samples Wet weight (g) One Two Three Four 105 95 90 100 Dry weight (g) 85.6 76.5 85.5 84 Activate Go to Sett
A wet free-milling gold ore sample weighing 150 kg was delivered to an assayer to determine the grade of gold in the ore. The moisture content of four replicate samples from the bulk material were determined (Table 1). The team also took triplicate samples weighing 50 g (dry weight) each for fire assaying, and the average gold content per sample was 0.35 mg. a) Find the average percent moisture of the bulk material. b) Estimate the quantity (in mg) of gold in the sample. Samples Wet weight (g) One Two Three Four 105 95 90 100 Dry weight (g) 85.6 76.5 85.5 84 Activate Go to Sett
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:A wet free-milling gold ore sample weighing 150 kg was delivered
to an assayer to determine the grade of gold in the ore. The moisture
content of four replicate samples from the bulk material were
determined (Table 1). The team also took triplicate samples
weighing 50 g (dry weight) each for fire assaying, and the average
gold content per sample was 0.35 mg.
a) Find the average percent moisture of the bulk material.
b) Estimate the quantity (in mg) of gold in the sample.
One
Two
Three
Four
Samples
Wet weight (g)
105
95
90
100
Dry weight (g)
85.6
76.5
85.5
84
Activate
Go to Setti
27
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O O e a
Gp
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f9
f1o
f11
f12
A
prt sc
delete
&
7
8
backspace
U
P
G
K
pause
B
樂
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