Answer:
1. molecules of CO₂
2. 10⁴ molecules of H₂O
3. 8.75×10³² molecules of C₆H₁₂O₆
Explanation:
1. molecules of CO₂
2. 10⁴ molecules of H₂O
3. 8.75×10³² molecules of C₆H₁₂O₆
There are a lot of separation processes. To name a few, these can be distillation, centrifugation, extraction, membrane or sorption process and many other. To know which is the best technique, you should know the property between two substances that have a stark difference. In this case, it is the polarity. Ethyl alcohol is more polar than ethyl ester and less dense. Thus, these two won't mix. So, take advantage of their density difference by decantation or centrifugation.
<u>Answer:</u> The amount of heat released for 5.25 moles of hydrogen peroxide decomposed is 1032.15 kJ
<u>Explanation:</u>
We are given:
Heat released in the reaction = 196.6 kJ per mole of hydrogen peroxide
Heat released for 2 moles of hydrogen peroxide decomposed =
<u>Sign convention of heat:</u>
When heat is absorbed, the sign of heat is taken to be positive and when heat is released, the sign of heat is taken to be negative.
The chemical equation for the decomposition of hydrogen peroxide follows:
We are given:
Moles of hydrogen peroxide decomposed = 5.25 moles
By Stoichiometry of the reaction:
2 moles of hydrogen peroxide decomposed, the amount of heat released is 393.2 kJ
So, when 5.25 moles of hydrogen peroxide decomposed, the amount of heat released will be =
Hence, the amount of heat released for 5.25 moles of hydrogen peroxide decomposed is 1032.15 kJ
Answer:
382.5J
Explanation:
<em>Use the formula:</em>
E = mcΔθ or Q = mcΔT
m = 100g
c = 0.45 J/g°C
ΔT or Δθ = 110 - 25 = 85°
<em>Sub in the values:</em>
E = 100 × 0.45 × 85
= 382.5J