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Three flasks containing 100g soil (oven dry basis) were prepared. The first was used as a control (soil only) and the other two were mixed with 4% of two different organic sources (Saw dust and poultry manure). After wetting the soil to the field capacity, the flasks were connected to the respiration apparatus. After two days, 10 ml out of 50 ml 0.5 N of NaOH was titrated against HCI (0.5N). The volumes of the acid were as following: Blank, 9.5 ml; control, 9.0 ml, soil and saw dust 6.5 ml; and soil and poultry manure 7.8 ml. The content of the organic carbon of the saw dust was 7.2 % and poultry manure was 3.1 %. What is the % of the organic sources decomposition? And if you a farmer which sources you prefer to add to your crop?

Three flasks containing 100g soil (oven dry basis) were prepared. The first was used as a control (soil only) and the other two were mixed with 4% of two different organic sources (Saw dust and poultry manure). After wetting the soil to the field capacity, the flasks were connected to the respiration apparatus. After two days, 10 ml out of 50 ml 0.5 N of NaOH was titrated against HCI (0.5N). The volumes of the acid were as following: Blank, 9.5 ml; control, 9.0 ml, soil and saw dust 6.5 ml; and soil and poultry manure 7.8 ml. The content of the organic carbon of the saw dust was 7.2 % and poultry manure was 3.1 %. What is the % of the organic sources decomposition? And if you a farmer which sources you prefer to add to your crop?

Introduction to Chemical Engineering Thermodynamics
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
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Question Three flasks containing 100g soil (oven dry basis) were prepared. The first was used as a control (soil only) and the other two were mixed with 4% of two different organic sources (Saw dust and poultry manure). After wetting the soil to the field capacity, the flasks were connected to the respiration apparatus. After two days, 10 ml out of 50 ml 0.5 N of NaOH was titrated against HCI (0.5N). The volumes of the acid were as following: Blank, 9.5 ml; control, 9.0 ml, soil and saw dust 6.5 ml; and soil and poultry manure 7.8 ml. The content of the organic carbon of the saw dust was 7.2 % and poultry manure was 3.1 %. What is the % of the organic sources decomposition? And if you a farmer which sources you prefer to add to your crop?
Transcribed Image Text:Question Three flasks containing 100g soil (oven dry basis) were prepared. The first was used as a control (soil only) and the other two were mixed with 4% of two different organic sources (Saw dust and poultry manure). After wetting the soil to the field capacity, the flasks were connected to the respiration apparatus. After two days, 10 ml out of 50 ml 0.5 N of NaOH was titrated against HCI (0.5N). The volumes of the acid were as following: Blank, 9.5 ml; control, 9.0 ml, soil and saw dust 6.5 ml; and soil and poultry manure 7.8 ml. The content of the organic carbon of the saw dust was 7.2 % and poultry manure was 3.1 %. What is the % of the organic sources decomposition? And if you a farmer which sources you prefer to add to your crop?
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