A basic solution is 1. 35×10−5m in calcium hydroxide, ca(oh)2. what is the ph of the solution at 25. 0∘c?
1 answer:
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Answer: Theoretical Yield = 0.2952 g
Percentage Yield = 75.3%
Explanation:
Calculation of limiting reactant:
n-trans-cinnamic acid moles = (142mg/1000) / 148.16 = 9.584*10⁻⁴ mol
pyridium tribromide moles = (412mg/1000) / 319.82= 1.288*10⁻³ mol
- n-trans-cinnamic acid is the limiting reactant
The molar ratio according to the equation mentioned is equals to 1:1
The brominated product moles is also = 9.584*10⁻⁴ mol
Theoretical yield = (9.584*10⁻⁴ mol) * (Mr of brominated product)
= (9.584*10⁻⁴ mol) * (307.97) = 0.2952 g
Percentage Yield is : Actual Yield / Theoretical Yield = 0.2223/0.2952
= 75.3%
#1
- As 2 electrons are donated Hence the No of electrons =38-2=36
#2
- As 3 electrons donated the no of electrons=23-3=20
#3
- No of neutrons=55-26=29
#4
- As 2 electrons are donated no of electrons =48-2=46
#5
- No of neutrons=210-82=128