Answer: 6.26atm
Explanation:Please see attachment for explanation
Use Law of Graham.
rate A / rate B = √ (molar mass B / molar mass A)
rate A / rate B = 2.5
molar mass A = 32.0 g/mol
=> (molar mass B / molar mass A) = (rate A / rate B)^2
molar mass B = molar mass A * (rate A / rate B)^2
molar mass B = 32.0 g/mol * (2.5)^2 = 200. g/mol
Answer: 200 g/mol
The correct answer to the problem is 0.193 which is three significant figures.
<h3>What are significant figures?</h3>
The term significant figures has to do with the figures that have a mathematical meaning. We know that the result has to correspond to the highest number of significant figures.
Hence, If we multiply 0.34 x 0.568 the result ought to be recorded as 0.193 which is three significant figures.
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The balanced molecular equation , with Na⁺ as the spectator ion .
2NaCrO₂(aq) + 2H₂O(l) + 6NaClO(aq) →2CrO₄(aq) + 3Cl₂(g) + 4NaOH(aq)
There are following steps involve in balanced redox reaction in basic medium .
- Divide the reaction into two half reactions .
- Balance the elements other than oxygen and hydrogen .
- Balance the oxygen atom by adding .
- Balance the hydrogen atom by adding .
- Add on bath side .
- Combine and to form form .
- Balance the charge by adding .
- Add the half reaction and simply .
The species which reduces the other species in the redox reaction is called oxidizing agent . Similarly , the species which oxidize the other species in the redox reaction is called reducing agent .
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