Given:
, the 
is:
A. a coefficient that represents the number of oxygen atoms in the molecule.
B. a subscript that represents the number of oxygen atoms in the molecule.
C. a coefficient that represents the number of carbon dioxide molecules.
D. a subscript that represents the number of carbon dioxide molecules.
A. a coefficient that represents the number of oxygen atoms in the molecule.
B. a subscript that represents the number of oxygen atoms in the molecule.
C. a coefficient that represents the number of carbon dioxide molecules.
D. a subscript that represents the number of carbon dioxide molecules.
1 answer:
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385 L is the volume of the air mattress with 0.55 moles of air inside the mattress and a temperature of 295 K.
<h3>What is an ideal gas equation?</h3>The ideal gas law (PV = nRT) relates to the macroscopic properties of ideal gases. An ideal gas is a gas in which the particles (a) do not attract or repel one another and (b) take up no space (have no volume).
Using the gas law,
PV=nRT, where n is the moles and R is the gas constant. Then divide the given mass by the number of moles to get molar mass.
Given data:
P= 3.5 kPa
V=?
n= 0.55 moles of air
T= 295K
R= 8.314 (L kPa/mol K)
Putting value in the given equation:
V=
V =
V = 385.4132857 L
And whatever the significant figure is asked for, for example, 3 significant figures: the answer would be 385 litres.
Hence, 385.4132857 L is the volume of the air mattress.
Learn more about the ideal gas here:
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Using ideal gas equation,
Here,
P denotes pressure
V denotes volume
n denotes number of moles of gas
R denotes gas constant
T denotes temperature
The values at STP will be:
P=1 atm
T=25 C+273 K =298.15K
V=663 ml=0.663L
R=0.0821 atm L mol ⁻¹
Mass of gas given=1.25 g g
Molar mass of gas given=?
Putting all the values in the above equation,
Molar mass of the gas=46.15
Answer:
Given:
Mass = 15.8 g
Volume = 20 cm³
To Find:
Density of unknown substance
Explanation:
Formula:
Substituting value of mass & volume in the formula: