1. Standardization of KMnO4
Trial 1
Mass of H2C2042H20 (MW= 126 g/mol), g
0.25
Initial buret reading, mL
2.5
Final buret reading, mL
42.5
Volume of KMnO4 solution used, mL
5 pts
Moles of oxalic acid used
5 pts
Moles of KMnO4 used (refer to the equation)
5 pts
Molarity of KMnO4 solution
M
5 pts

Why should the scientific method be used to answer a question? a. it provides a way to test an idea without any bias. b. it provides a way to test a hypothesis. c. it provides a way to ensure all hypotheses are proven correct. d. it provides a way to quickly turn a hypothesis into a scientific theory.

6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —