Isomers are defined as the compounds which have same formula but different in arrangement.
So, Isomers have the same number of atoms in each element.
According to the given examples, CH₃CH₂OH has the chemical formula as C₂H₆O while CH₃CHO has C₂H₅O. So, the number of atoms in each element is different for the given examples. Hence, <u>CH₃CH₂OH and CH₃CHO are not isomers of each other. </u>
Answer:
The new temperature would be 705.1 K.
Explanation:
Given data:
Initial pressure = 3 kpa
Initial volume = 13 L
Initial temperature = 56.12 K
Final pressure = 70 Kpa
Final volume = 7 L
Final temperature = ?
Solution:
To solve this problem we will use the general gas equation.
P₁V₁/T₁ = P₂V₂/T₂
T₂ = P₂V₂ T₁/ P₁V₁
T₂ = 70 Kpa . 7 L . 56.12 K / 3 Kpa . 13 L
T₂ = 27498.8 / 39
T₂ = 705.1 K
Answer:
1.68 × 10²³ Molecules
Explanation:
As we know that 1 mole of any substance contains exactly 6.022 × 10²³ particles which is also called as Avogadro's Number. So in order to calculate the number of particles (molecules) contained by 0.280 moles of Br₂, we will use following relation,
Moles = Number of Molecules ÷ 6.022 × 10²³ Molecules.mol⁻¹
Solving for Number of Molecules,
Number of Molecules = Moles × 6.022 × 10²³ Molecules.mol⁻¹
Putting values,
Number of Molecules = 0.280 mol × 6.022 × 10²³ Molecules.mol⁻¹
Number of Molecules = 1.68 × 10²³ Molecules
Hence,
There are 1.68 × 10²³ Molecules present in 0.280 moles of Br₂.
Lithium has 3 electrons while a cation, being a positively charged particle, has less than that; so either 1 or 2 electrons.
We use the Boyle's law to solve this question. At constant temperature, the volume of a fixed mass of a gas is inversely proportional to its pressure. When comparing the fixed mass of gas at different conditions under this law, the expression below is used.
P₁V₁=P₂V₂
P₁=5.0 atm
P₂=7.0atm
V₁=3.5 L
V₂=V
5.0×3.5=7.0×V
V= (5.0×3.5)7.0
V=2.5 L