Answer:
As per the given statement:
Using ideal gas law equation:
where
P represents the Pressure of a gas
V represents the Volume it occupies
R represents the Universal constant , usually given as:
R = 0.082 atm L/ mol k
First convert Celsius into Kelvin.
T = 273 + 30 = 303 K
Use conversion:
1 L = 1000 mL
V = 74.5 mL = 
L
Now substitute the given values we have;
Simplify:
n = 0.00279757305
or
n ≈0.0028 moles.
Since carbon monoxide, CO has molar mass of 28.01 g/mol
then;
g
Therefore, 0.078 g of CO(g) are there in 74.5 mL of the gas at 0.933 atm and 30 degree C
Explanation:
atom changes from a ground state to an excited state by taking on energy from its surroundings in a process called absorption. The electron absorbs the energy and jumps to a higher energy level. In the reverse process, emission, the electron returns to the ground state by releasing the extra energy it absorbed
The question is incomplete, the complete question is;
An alcohol thermometer makes use of alcohol's changing _______ in order to measure temperature. As the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.
A.
mass
B.
state
C.
chemical composition
D.
density
Answer:
D.
density
Explanation:
Every kind of thermometer makes use of a change in a particular physical property of a substance as a measure of temperature. It must be a property that changes with temperature.
Density of a substance changes with temperature. Even though the mass of alcohol in glass remains constant, but its volume increases or decreases with change in temperature leading to a change in volume and consequently a change in density of the alcohol in glass. This change is used as a measure of the change in temperature.
Answer:
The law of conservation of mass states that mass is neither created nor destroyed but the mass of the system must remain constant over time. The total number of atoms in the reactants is equal to the total number of atoms in the product. Therefore, this chemical equation shows that energy is conserved and demonstrates the law of conservation of mass.
FCH₂CH₂F will form Intermolecular Hydrogen bond
FCH₂CH₂F has H-F atoms linked together by Hydrogen bond whereas in HOCH₂CH₂OH here, carbon is linked with oxygen and oxygen is again linked with Hydrogen.
<h3>What is Intermolecular Hydrogen bond ?</h3>
Intermolecular hydrogen bonding refers to the formation of hydrogen bonds between molecules of the same or distinct substances. As an illustration, consider hydrogen bonds in water, alcohol, ammonia, etc.
- An illustration. (i) hydrogen connection between the hydrogen fluoride molecules. (ii) The hydrogen bond in molecules of alcohol or water
- Atoms within a molecule are held together by intramolecular forces. There are forces between molecules known as intermolecular forces.
Learn more about Hydrogen bond here:
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