Answer:
Mass = 59.4 g
Explanation:
Given data:
Volume of CO₂ =32.5 dm³
Temperature = 32°C
Pressure = 104.7 KPa
Mass of CO₂ = ?
Solution:
32+273 = 305 K
104.7/101 = 1.04 atm
PV = nRT
n = PV/RT
n = 1.04 atm×32.5 L/ 0.0821 atm. L/mol.K×305 K
n = 33.8 /25.04 /mol
n = 1.35
Mass of CO₂:
Mass = number of moles × molar mass
Mass = 1.35 mol × 44 g/mol
Mass = 59.4 g
Think it would have to be
C)
Hope this is right
Color, the other answers arent changing the substance into something different
Answer:
Gasoline
Explanation:
Pure Substance: are those having same type of atoms or molecules.
Compound: one or more atoms of the element combine to form a compound.
Mixture: is combination of one or more substances mix together.
Homogeneous Mixture: are those which are not distinguish by naked eye but can be separated into its components by physical means
Heterogeneous mixture: are those which can be distinguishing by naked eye and can be separated into its components by physical means.
So keeping in mind the above definitions
Table salt:
The chemical formula of table salt is NaCl and it a pure compound not mixture.
Gasoline:
Gasoline is mixture of hydrocarbon, It contains small hydrocarbons ranging from 4 Carbon to 12 Carbon per molecule. it is a homogeneous mixture.
Aluminum:
Aluminum is a pure substance that is made up of same kind of atoms. so it is an element and not mixture. Its symbol is Al
Carbon dioxide:
Carbon dioxide is a pure compound and its chemical formula is CO₂ and not a mixture.
So, the write option is Gasoline.
