Developing a new empirical-computational method, for accurate acid-base quantitative analysis
المؤلفون المشاركون
Uthman, Uwulabi Rashid
Akinola, Akinjide Abayomi
Uthman, Muhammad Awwal
Adepitan, Abu Bakr
المصدر
Tikrit Journal of Engineering Sciences
العدد
المجلد 26، العدد 3 (30 سبتمبر/أيلول 2019)، ص ص. 19-30، 12ص.
الناشر
تاريخ النشر
2019-09-30
دولة النشر
العراق
عدد الصفحات
12
التخصصات الرئيسية
العلوم الهندسية والتكنولوجية (متداخلة التخصصات)
الموضوعات
الملخص EN
The mole ratio of an acid base reaction is one of the important values to state the stoichiometric relationship between acids and bases.
However, solving acid-base problems based on stoichiometry is still challenging for new chemists.
This issue renders the use of a model for predicting the volume of the acid used an exciting endeavour in academia.
This work was to study the individual and interactive effects of the titration parameters such as acid concentration, base concentration and the number of the indicatordrops on the volume of acid used in the titration process, using methyl orange as an indicator.
We also aimed to study the central composite design (CCD) model of response surface methodology (RSM) for experimental design and modelling of the process.
The experimental data were analysed using analysis of variance (ANOVA) and fitted to a second-order polynomial equation using multiple regression analysis.
The regression analysis showed a good fit of the experimental data to the second-order polynomial modelwith a coefficient of determination (R2) value of 0.9751 and model F-value of 43.37.
The response surface and contour plots were generated from RSM tool for the interactive effects of the studied parameters on the volume of acid used.
The developed model wasfurther validated using existing acid-base titration problems from the Senior Secondary Certificate Examination (SSCE) past questions over 30 years.
All observations indicated that the developed model was only valid for a monobasic The mole ratio of an acid base reaction is one of the important values to state the stoichiometric relationship between acids and bases.
However, solving acid-base problems based on stoichiometry is still challenging for new chemists.
This issue renders the use of a model for predicting the volume of the acid used an exciting endeavour in academia.
This work was to study the individual and interactive effects of the titration parameters such as acid concentration, base concentration and the number of the indicatordrops on the volume of acid used in the titration process, using methyl orange as an indicator.
We also aimed to study the central composite design (CCD) model of response surface methodology (RSM) for experimental design and modelling of the process.
The experimental data were analysed using analysis of variance (ANOVA) and fitted to a second-order polynomial equation using multiple regression analysis.
The regression analysis showed a good fit of the experimental data to the second-order polynomial modelwith a coefficient of determination (R2) value of 0.9751 and model F-value of 43.37.
The response surface and contour plots were generated from RSM tool for the interactive effects of the studied parameters on the volume of acid used.
The developed model wasfurther validated using existing acid-base titration problems from the Senior Secondary Certificate Examination (SSCE) past questions over 30 years.
All observations indicated that the developed model was only valid for a monobasic acid
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Uthman, Uwulabi Rashid& Akinola, Akinjide Abayomi& Uthman, Muhammad Awwal& Adepitan, Abu Bakr. 2019. Developing a new empirical-computational method, for accurate acid-base quantitative analysis. Tikrit Journal of Engineering Sciences،Vol. 26, no. 3, pp.19-30.
https://search.emarefa.net/detail/BIM-1034011
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Uthman, Uwulabi Rashid…[et al.]. Developing a new empirical-computational method, for accurate acid-base quantitative analysis. Tikrit Journal of Engineering Sciences Vol. 26, no. 3 (2019), pp.19-30.
https://search.emarefa.net/detail/BIM-1034011
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Uthman, Uwulabi Rashid& Akinola, Akinjide Abayomi& Uthman, Muhammad Awwal& Adepitan, Abu Bakr. Developing a new empirical-computational method, for accurate acid-base quantitative analysis. Tikrit Journal of Engineering Sciences. 2019. Vol. 26, no. 3, pp.19-30.
https://search.emarefa.net/detail/BIM-1034011
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
-
رقم السجل
BIM-1034011
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر