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Blizzard [7]
4 years ago
8

Why dilute h2so4 is added to oxalic acid when titrating with kmno4​

Chemistry
1 answer:
77julia77 [94]4 years ago
3 0

To catalyse the reaction and also to prevent the reaction from hydrolysis.

Explanation:

  • Sulphuric acid is using in redox reaction because sulphuric acid is providing H+ ions which is necessary for this reaction to occur more quickly, but the sulphate ions from the sulphuric acid barely react during this process. So H2SO4 is adding in this reaction to make it more acidic.
  • Sulphuric acid is also a dehydrating agent and also a catalyst in this reaction.
  • H2SO4 is helping to prevent the hydrolysis by providing excess H+ ions into the reaction. H2SO4 is stable towards the direction of oxidation.

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PLeas Answer with A B C or D please be QUICK :>
Lena [83]

<em>Answer: </em>D

<em>Explanation:</em>

chemical formula of methane: CH4

electron configuration of C: 2,4

electron configuration of H: 1

there are 4 hydrogen atoms that donated 1 electron each to C

therefore it's D.

3 0
3 years ago
For elements in the third row of the periodic table and beyond, the octet rule is often not obeyed. a friend of yours says this
Rom4ik [11]

The reason that some of the elements of period three and beyond are steady in spite of not sticking to the octet rule is due to the fact of possessing the tendency of forming large size, and a tendency of making more than four bonds. For example, sulfur, it belongs to period 3 and is big enough to hold six fluorine atoms as can be seen in the molecule SF₆, while the second period of an element like nitrogen may not be big to comprise 6 fluorine atoms.  

The existence of unoccupied d orbitals are accessible for bonding for period 3 elements and beyond, the size plays a prime function than the tendency to produce more bonds. Hence, the suggestion of the second friend is correct.  


4 0
3 years ago
A science club made pine wood cars. Each car was set on the same track and then released. The distance traveled was measured. Li
Minchanka [31]
Isn't this a math problem?
If it is the the answer should be 102.

10 decimeters=1 meter

27x10=270
270-168=102
7 0
4 years ago
True or false: plants, animals, and the environment are not dependent on each other for the use of carbon and oxygen.
Reil [10]
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They basically just swap oxygen for CO2, or CO2 for oxygen! So the answer is false because they DO depend on each other for the use of Oxygen and Carbon dioxide! Hope this helped :)
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It was the element of aluminium where they predict their properties <span />
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