PLS HELP - How many moles are present in 3.01 x 1023 atoms of N2 (nitrogen gas) ?
1 answer:
Answer:
<h2>0.5 moles</h2>Explanation:
To find the number of moles in a substance given it's number of entities we use the formula
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question we have
We have the final answer as
<h3>0.5 moles </h3>Hope this helps you
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Given:
The volume is V = 88 mL
Density, d = 9.77 g/mL
Because mass = volume * density, therefore the mass of the object is
Answer: The mass is 865.2 g or 0.865 kg
The volume is V = 88 mL
Density, d = 9.77 g/mL
Because mass = volume * density, therefore the mass of the object is
Answer: The mass is 865.2 g or 0.865 kg
The balanced redox reaction are given below
2CrO₂⁻(aq) + 2H₂O(l) + 6ClO⁻(aq) →2CrO₄²⁻(aq) + 3Cl₂(g) + 4OH⁻(aq)
The Cl species is oxidizing agent .
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
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- Balance the hydrogen atom by adding
.
- Balance the charge by adding
.
- Add
on both side
- Neutralize by combing
- 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 .
To learn more about oxidizing agent please click here ,
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