15 Questions
Which unit is used to express atomic mass and molecular mass?
Atomic mass unit (AMU)
What is the atomic mass of sulfur?
32
What is the molar mass of boron?
10.81
Which of the following is the basis for many types of combustion calculations?
Molar mass
What is suggested to keep the data organized during combustion calculations?
Using simple tables
What is the purpose of flue gas analysis?
To determine air supplied for combustion
Which substances combine in simple whole number kilomoles in the given equation?
CH4, 0^, CO-^, and H^O
What is the mass of the reactants (€N4 and 02) in the given equation?
80 kg
What is the mass of carbon dioxide (C02) produced when 176 kg of propane (C3Hg) is burned?
528 kg
According to the ideal gas equation, which of the following is the correct equation?
$PV = nRT$
Dalton's law states that the pressure of a mixture of gases is equal to the sum of the partial pressures of its constituents. Which of the following equations represents Dalton's law?
$PT = P_1 + P_2 + P_3$
According to Avogadro's law, equal volumes of all gases, at the same temperature and pressure, have the same number of molecules. What is the relationship between kilomole fraction and percent composition by volume?
They are equal
According to the law of conservation of mass, what is true about the mass of any one element at the beginning and end of a reaction?
The mass of any one element at the beginning of a reaction is equal to the mass of that element at the end of the reaction.
What do the coefficients in a chemical equation represent?
The number of molecules in each compound.
What is the purpose of balancing chemical equations?
To ensure that the equation follows the law of conservation of mass.
Calculate the number of kilomoles in a given mass of carbon dioxide with this quiz. Learn how to use the formula and rearrange it to find the answer. Test your knowledge of molar mass and kilomoles in this quick and practical exercise.
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