Design and Development of the Experimental Kit for Limiting Reagent Study Using a Smartphone
ผู้เขียน :
Apaporn Boonmee
,
Nuntaporn Moonrungsee
,
Jaroon Jakmunee
,
Nutcharee Bundtichat
,
Naphatsakorn Yakantip
,
Rungrat Suttiprapa
,
Teerapich Kasemsuk
,
Nipat Peamaroon
,
Sunisa Suwancharoen
เผยแพร่วันที่ :
1 ม.ค. 2563
ประเภท :
บทความวิจัยที่ตีพิมพ์ในวารสารวิชาการระดับชาติ
วารสารวิชาการ :
วารสารพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
เล่มที่ :
14
ฉบับที่ :
1
หน้า :
177-188
ผู้เผยแพร่ :
มหาวิทยาลัยรังสิต
รายละเอียด :
The objective of this research was to study the optimum condition and the efficiency of the limiting reagent experiment kit using a smartphone. Two groups of the subjects; 10 undergraduate students from chemistry major and 26 undergraduate students from general science education major, selected by purposive sampling technique, were used to determine the developed test kit efficiency, respectively. The data were statistically analyzed by percentage, means and standard deviation.The result for the optimum condition for the experimental kit design presented that the suitable concentration of reactants; Fe(NO3)3 and KSCN, was 0.0020 M. The blue intensity was the best correlation color for product analysis. The suitable distancefrom smartphone to platform holder for the good result picture capture was 30-40 cm. The types of smartphone and color analysis program showed the same result which was not significantly different. For the efficiency results, the percentage of graph between the blue color of FeSCN2+ and volume of KSCN plotted by students that correctly specified the limiting agent was 80 and the learning satisfaction of the students was at 4.05 which was on the very satisfied level.
ลิงค์ :