KESALAHAN KONSEP MATERI STOIKIOMETRI YANG DIALAMI SISWA SMA
| Autor: | Sri Winarni, Ade Ismayani, Fitriani Fitriani |
|---|---|
| Jazyk: | English<br />Indonesian |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Jurnal Ilmiah Didaktika: Media Ilmiah Pendidikan dan Pengajaran, Vol 14, Iss 1 (2013) |
| Druh dokumentu: | article |
| ISSN: | 1411-612X 2355-6129 |
| DOI: | 10.22373/jid.v14i1.488 |
| Popis: | Misconceptions in stoichiometry of senior high school students grade X were studied through a qualitative research using a diagnostic test in the form of multiple choices with reason on 22 students from grade X-3. The validity of the instrument found was 83%. Meanwhile the realiability found was 0,61. The misconceptions found were in: (a) reaction equation is the equality number of coefficient in reactant and in the product for about 13,63%; (b) index number of an atom in a compound is the same as in free element for about 9,09%; (c) the molecule symbol of element in the form of gass has 2 index number for about 27,27%; (d) the greater number of coefficient reaction shows the greater number of substances involved in a reaction for about 9,09%; (e) no matter how many mols in a compound, it has a fixed molecules, 6,2 x 1023 molecules, for about 4,54%; (f) define atom the same as molecules, for about 9,09%; and (g) for P and T that have the same comparison of gass volume that involves in a reaction serves as the smallest coefficient. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|