Answer:
T₁ = 563.19 K
Explanation:
Given data:
Initial volume = 359 mL
Final volume = 269 mL
Final temperature = 422 K
Initial temperature = ?
Solution:
The given problem will be solve through the Charles Law.
Charles Law:
According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.
Mathematical expression:
V₁/T₁ = V₂/T₂
V₁ = Initial volume
T₁ = Initial temperature
V₂ = Final volume
T₂ = Final temperature
Now we will put the values in formula.
V₁/T₁ = V₂/T₂
T₁ = V₁T₂ / V₂
T₁ = 359 mL × 422 K / 269 mL
T₁ = 151498 mL.K / 269 mL
T₁ = 563.19 K
Answer:
C₅H₁₂.
Explanation:
- The hydrocarbon is burned in excess of oxygen to give CO₂ and H₂O.
- <em>The no. of moles of CO₂ produced = mass/molar mass </em>= 1.53 g/44.0 g/mol = <em>0.03477 mol.</em>
<em>Which is corresponding to 0.03477 mol of C.</em>
<em />
- <em>The no. of moles of H₂O produced = mass/molar mass</em> = 0.756 g/18.0 g/mol = <em>0.042 mol.</em>
<em>which corresponds to (0.042 x 2) = 0.084 moles of hydrogen.</em>
<em />
- The ratio of the number of moles of hydrogen to carbon in the composition of the compound will be 0.084 / 0.03477 = 2.4 = 12/5.
- <em>Therefore, the empirical formula of the compound under consideration is C₅H₁₂.</em>
<em></em>
Answer:
The answer to your question is: Neutral
Explanation:
A neutral solution is a solution whose pH is 7.
That means that this solution has the same amount of H⁺ and OH⁻.
Examples of neutral solutions:
- distilled water
- sugar solution
- table salt
- cooking oil.
Answer:
false
Explanation:
this is because , high temperature speeds up the the random motion of particles which leads to high dissolution
