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Vol. 31 No. 2 (2020)

Published: 2020-08-05

Research Articles

An Investigation on Zinc Biosorption with Agar Extraction Waste from Gracilaria tenuistipitata

Nikko Angelo S. Carisma, Reniza Yvonne E. Gonzales, Nancy Lazaro-Llanos

11-26
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Estimating the Heating Values of Napier Grass (Pennisetum purpureum Schumach) and Wild Sugarcane (Sacharrum spontaneum L.) Biomass using Proximate Composition

Royette C. Posadas, Jenny Love C. Magbanua, Stella P. Ocreto

34-45
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Feasibility of Modifying Existing Chemistry Demonstrations by Using Substitute Materials

Dane Mykel M. Quiambao, Armando Jr. M. Guidote, Rhodora F. Nicdao

55-61
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QSPR Analysis of the Bond-Valence Substituent Index with Eight Physical Properties of Alkanes

Florentino C. Sumera

46-54
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Multifaceted Chemistry Conceptual Profile of Selected Senior High School STEM Students from a Private School in Manila

Rick Jasper A. Carvajal

68-79
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Optimization and Kinetics of Bioadsorption of Aqueous Potassium Permanganate in Charred Cacao Shells

Cyrus Ariel D.R. Fornoles, Naela V. Delmo, Alvin Manuel M. Traje, Sheryl Lozel B. Arreola, Amelia B. Hizon-Fradejas, Kevinilo P. Marquez

80-90
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Perspective

A personal account of teaching chemistry courses in the epicenter of the COVID-19 pandemic

Elmer-Rico E. Mojica

1-10
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ON GRADUATE SCIENCE PROGRAMS IN THE PHILIPPINES AND THEIR IMPACT ON NATIONAL AND ECONOMIC SECURITY

Christopher C. Bernido, Ma. Victoria Carpio-Bernido

27-33
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In Memoriam – Dr. Leon M. Payawan Jr.

Ken Aldren S. Usman, Yasmin D.G. Edañol, Marlon T. Conato

62-67
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