The mole percent of oxygen is 2.5%
<h3>What is partial pressure?</h3>
According to the Dalton law of partial pressure, the total pressure of a gas is the sum of the the individual pressures of all the gases in the mixture. Thus if we have a mixture of gasses A, B, C; the total pressure of the gas is given by; PT = PA + PB + PC
Also, there is the relation;
XA = PA/PT
Where
XA = mole fraction of a gas
P = Partial pressure of the gas
PT = total pressure of gas A
Again;
Mole fraction of a gas = ratio of the partial pressure to the total pressure of the gas.
Hence;
21.3 kpa/849 kpa * 100/1
= 2.5%
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Answer:
The three ways to in which the hydrocarbons are represented are;
a. The ball and stick model
b. Condensed structural formula
c. Skeletal structure
The molecular formula are
a. C₇H₁₆
b. C₆H₁₄
c. C₅H₁₂
Explanation:
a. The ball and stick model of organic compounds, displays the atoms and bonds in three dimensions, representing the atoms by spares and the bonds by rods
b. The condensed structural formula are similar to the structural formula with the difference that the formula is written in a linear fashion which conserves space and increases ease of writing and are written out faster.
c. In the skeletal structure diagram, the atoms are of the organic compound are combined together in the structural drawing of the essential features of the organic compound. In essence, a skeletal structure, depicts the skeleton of a compound as it is made up of the molecule's skeletal atoms.
Answer:
The molar mass is determined by applying the Ideal Gas Law, PV = nRT, where P is the pressure (in atm), V is the volume (in L), n is the number of moles of gas, R is the universal gas constant (0.08206 L∙atm/mol∙K), and T is the temperature (in K).
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