The given question is incomplete. The complete question is :
This is the chemical formula for carvone (the chemical that gives spearmint its flavor) : An organic chemist has determined by measurements that there are 27.3 moles of carbon in a sample of carvone. How many moles of oxygen are in the sample
Answer: 2.73 moles of oxygen are there in the sample.
Explanation:
The chemical formula of carvone is .
This means:
When 10 moles of carbon are there in carvone , 1 mole of oxygen is there in carvone
Thus for 27.3 moles of carbon in carvone , mole of oxygen is there in carvone.
Thus 2.73 moles of oxygen are there in the sample.
Answer:
The heat of combustion for the unknown hydrocarbon is -29.87 kJ/mol
Explanation:
Heat capacity of the bomb calorimeter = C = 1.229 kJ/°C
Change in temperature of the bomb calorimeter = ΔT = 2.19°C
Heat absorbed by bomb calorimeter = Q
Moles of hydrocarbon burned in calorimeter = 0.0901 mol
Heat released on combustion = Q' = -Q = -2,692 kJ
The heat of combustion for the unknown hydrocarbon :
2.202 moles of ions are released when samples dissolves completely in water.
<h3>What Causes Potassium to Explode in Water?</h3>
Chemists have long believed that throwing a lump of alkali metal into water, a time-honored technique still conducted by some lecturers and many chemical thrill seekers, generates an explosion because the metal dissolves, releasing high heat and transferring electrons to the water. The dissolving step also produces steam and makes hydroxide ions and hydrogen, which can be burnt to increase the process's energy.
They understood that the steam and hydrogen produced early in the reaction should form a buffer layer over the metal surface, preventing water from reacting further.
learn more about Potassium refer
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Answer:
Chemical reactions are balanced by adding coefficients so that the number of atoms of each element is the same on both sides. Stoichiometry describes the relationship between the amounts of reactants and products in a reaction.
Explanation:
Answer:
covalent and ionic
Explanation:
covalent is nonmetal+nonmetal
ionic is metal+nonmetal