Hydrogen gas reacts with oxygen gas to form water. What is the excess reactant in this recation(Refer to the picture below to an
swer).
A. Water
B. Hydrogen gas
C. Oxygen gas
D. Water and oxygen gas
A. Water
B. Hydrogen gas
C. Oxygen gas
D. Water and oxygen gas
1 answer:
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Answer:
76.0%
Explanation:
Let's consider the following reaction.
CaCO₃(s) ⇄ CaO(s) + CO₂(g)
At equilibrium, the equilibrium constant Kp is:
Kp = 1.16 = pCO₂ ⇒ pCO₂ = 1.16 atm
We can calculate the moles of CO₂ at equilibrium using the ideal gas equation.
From the balanced equation, we know that 1 mole of CO₂ is produced by 1 mole of CaCO₃. Taking into account that the molar mass of CaCO₃ is 100.09 g/mol, the mass of CaCO₃ that reacted is:
The percentage by mass of the CaCO₃ that reacted to reach equilibrium is:
Answer: 50%
Explanation:
The number of electron pairs are 2 for hybridization to be and the electronic geometry of the molecule will be linear.
1. percentage of s character in sp hybrid orbital =
2. percentage of s character in hybrid orbital =
3. percentage of s character in hybrid orbital =
Thus percentage of s-character in an sp hybrid is 50%.