Lab 8: Factors Affecting Rates of Reaction

collision theory of reactions

theory used to predict the reaction rate for gases. based on the assumption that in order for a reaction to occur it is necessary for the reacting species to come together or collide with one anoter

what increases the rate of reaction?

any factor that increases the number of collisions

catalyst

speeds up a chemical reaction

what is the purpose of the absolute pressure sensor?

to measure the change in pressure in test tubes while they are undergoing a chemical reaction

part 1

you will determine how changing the temperature of the reactants changes the rate of reaction

part 2

you will determine how changing the particle size of one of the reactants changes the rate of reaction.

part 3

you will determine how changing the concentration of one of the reactants changes the rate of reaction.

what are the safety precautions for this lab?

Remember, follow the directions for using the equipment. Wear protective gear: goggles, gloves, and lab apron or lab coat. Be careful when handling chemicals and using the hot plate. Wear safety goggles and follow standard laboratory safety procedures.

consumables

vacuum grease 1.0 M hydrochloric acid (HCl), 15.0 mL  ice, crushed, 200.0 mL  6.0 M hydrochloric acid (HCl), 5.0 mL  magnesium metal strips (9), 0.5 by 2 cm  3.0 M hydrochloric acid (HCl), 5.0 mL  granular magnesium, 2g  0.1 M hydrochloric acid (HCl), 5.0 mL