The answer to the question above would be true
Answer:
decanting
stirring
solvent
Explanation:
Gravity filtration consists of a pump and a filter (to be placed outside the basin, above the water level). The pump is placed in the water. Connected by a hose to the filter, water is sucked up to the device.
In the gravity-type configuration, water is sucked into the filter, which causes an imbalance between the levels of the basin and the filter: this imbalance causes the movement of water - with the dirt - from the basin to the filter via the main drain and the skimmer.
<em>Answer :</em> the density of the N₂O at 325 K and 113.0 kPa is 1.84 kg m⁻³.
<span>
<span><em>Explanation : </em>
Density (kg/m³) = mass (kg) / Volume (m³)
</span><span> <span>d = m/V
(1)
Ideal gas law,
PV = nRT (2)</span></span></span>
<span>Where, P is
the pressure of the gas (Pa), V is the volume of the gas
(m³), n is the number of moles of gas (mol), R is
the universal gas constant ( 8.314 J mol</span>⁻¹ K⁻<span>¹) and T is temperature in
Kelvin.
n = m/M (3)
Where, n is number of moles, m is mass and M is
molar mass.
From (2) and (3),
PV = (m/M) RT
By rearranging,
P = (m/VM)RT (4)
From (1) and (4)
P = (dRT) / M
The given data,
P = 113.0 kPa = 113.0 x 10</span>³ Pa<span>
d = ?
R = 8.314 J mol</span>⁻¹ K⁻<span>¹
T = 325 K
M = </span>44.0 g/mol = 44.0 x 10⁻³ kg/mol
<span>
By substitution,</span>
113.0 x 10³ Pa = (d x 8.314
J mol⁻¹ K⁻¹ x 325 K) / 44.0 x 10⁻³ kg/mol
d = (113.0 x 10³ Pa x 44.0 x 10⁻³ kg/mol) / (8.314 J mol⁻¹ K⁻¹ x 325 K<span>)
d = 1.84 kg m</span>⁻<span>³
Hence, the density of the N</span>₂O at 325 K and 113.0 kPa is 1.84 kg m⁻³.
<span>
Assumption made is "N</span>₂O gas has an ideal gas behavior".
Answer:
1) 3-Ethylanisole
2) 2,3-Dibromobenzoic acid
3) 3-Fluorotoluene
Explanation:
Let us try to look at the structures of each compound one after the other as described in the question.
1) A ring with six vertices and alternating double and single bonds must refer to a benzene ring. A benzene ring having -OCH3 attached to the first vertex is called anisole. If a -CH2CH3 group is now attached at position 3, we now name the compound 3-Ethylanisole.
2) A ring with six vertices and alternating single and double bonds is a benzene ring. If the ring has -COOH attached to the first vertex, we call it benzoic acid. If bromine atoms are attached to the second and third vertices respectively, the compound is now named 2,3-Dibromobenzoic acid.
3) A ring with alternating single and double bonds is a benzene ring. If a -CH3 group is attached to the first vertex, we call the compound toluene. If a fluorine atom is now attached to position 3, the compound can now be named 3-Fluorotoluene
