Answer:
303.6 mg
Explanation:
Given that:
The lethal dose = 1320 mg/kg
The weight of the rat = 230 g
The lethal dose is the dose of a substance likely to cause death. SO a lethal dose of 50 will cause the death of 50% of the sample of test animals.
Therefore;
The mass of 2-naphthol that would have been ingested by each rat in a sample set of rats in order to kill half the population of rats will be equal to:
= 303.6 mg
<u>Answer:</u> The balanced half reaction is written below.
<u>Explanation:</u>
Reduction reaction is defined as the chemical reaction in which an atom gains electrons. The oxidation number of the atom gets reduced during this reaction.
When oxygen gas is reduced to oxide ions, the number of electron transferred are 2
The chemical equation for the reduction of oxygen gas to oxide ions follows:
Hence, the balanced half reaction is written above.
The empirical formula<span> of a chemical compound is the simplest positive integer ratio of atoms present in a compound. Therefore, the correct answer from the choices is the last option. </span><span>C7H14 and C10H20 have the same empirical formula which is CH2. Hope this answers the question.</span>
Subscript is the text which a small letter/number is written after a particular letter/number. It hangs below its letter or number.
The material’s temperature decreased 80 degrees celcius