Assume the following sampling conditions for a gold bearing ore crushed to about 0.93 cm, with m = 16 000 000 for a gold-silver amalgam, f= 0.5, g = 0.25 and I = 0.000035. assume that d = 1.25 cm %3D %3D %3D 1. What error is introduced when a sample of weight 10 kg is taken from a pile of broken ore? 2. What weight of sample should be taken from a pile of broken ore, so that sampling error will not exceed a specific precision of 15%?
Assume the following sampling conditions for a gold bearing ore crushed to about 0.93 cm, with m = 16 000 000 for a gold-silver amalgam, f= 0.5, g = 0.25 and I = 0.000035. assume that d = 1.25 cm %3D %3D %3D 1. What error is introduced when a sample of weight 10 kg is taken from a pile of broken ore? 2. What weight of sample should be taken from a pile of broken ore, so that sampling error will not exceed a specific precision of 15%?
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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Gy's Equation - Example
Assume the following sampling conditions for a gold bearing ore
crushed to about 0.93 cm, with m= 16 000 000 for a gold-silver
amalgam, f= 0.5, g = 0.25 and I=0.000035. assume that d = 1.25 cm
1. What error is introduced when a sample of weight 10 kg is taken
from a pile of broken ore?
2. What weight of sample should be taken from a pile of broken ore,
so that sampling error will not exceed a specific precision of
15%?
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