The correct answer would be A. To determine the overall order of the reaction, Jason should add the exponents of the concentrations in the rate law. The overall order of a reaction is the sum of all the index or exponent of the concentration terms in the rate law.
Igneous rock is formed by cooling magma. Sedimentary rock is formed through the lithification process of cementing, compacting, and hardening of the sediments. Metamorphic rock is formed by metamorphosis of igneous and sedimentary rocks.
Energy is absorbed by the molecules.
Answer:
The recovery of pure caffeine is 67.3% of the original, crude sample.
Explanation:
Step 1: Data given
Mass of pure caffeine = 1.69 grams
Original mass of sample = 2.51 grams
Step 2: What is the percent recovery of pure caffeine from crude?
Percentage = (mass of recovery / original mass) *100%
Percentage = (1.69 grams/2.51 grams) *100%
Percentage = 67.3 %
The recovery of pure caffeine is 67.3% of the original, crude sample.
Answer:
Swimmers health.
Explanation:
The pH is the measure of the concentration of the ions H⁺ (pH = -log[H⁺]), and it determines if the substance is acidic, basic or neutral. If pH = 7, it's neutral, if it's below 7 it's acidic, and if it's above 7, it's basic.
In pool water, chlorine is added to disinfect it, by killing microorganisms. The pH of the water affects the action of the chlorine, and for a better result in disinfection, it must be between 7.0 and 7.6, so the disinfection will happen and the swimmers' health will be protected.