The grams are in 0.0150 moles of caffeine C8H10N4O2
mass = moles of C8H10N4O2 x molar mass of C8H10N4O2
= 194g/mol x 0.0150mol = 2.91 grams
there is 2.94 grams in 0.01150 of caffeine
Smashing the cube into pieces
Explanation:
Smashing the cube into pieces will most likely increase the reaction rate between the manganese oxide and hydrogen peroxide.
The rate of a chemical reaction is a measure of the speed of a chemical reaction.
Some factors that affects the rate of chemical reaction are:
- Nature of the reactants
- Concentration of the reactants or pressure if gases.
- Temperature
- Presence of a catalyst.
- Sunlight(some reactions are light catalyzed)
- The nature of reactants implies the physical state of matter, bond type or surface area exposed of reacting species.
- The surface area exposed is directly proportional to the reaction rate.
- Breaking the cubes into smaller pieces exposes more surface area to the chemical action and the reaction rate increases.
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Answer:
0.069 moles of glucose
Explanation:
(0.138 mol/L)(0.5 L) = 0.069 moles of glucose
Hydrogen ions
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