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____ [38]
2 years ago
11

A reagent bottle on the shelf labeled 0.5m nacl was used in place of the 0.5 m cacl2. assuming c2o4^2- to be in excess, what wou

ld be observed as a result of using this wrong reagent in this test? explain
Chemistry
1 answer:
Alchen [17]2 years ago
8 0
Let's see the reaction for each situation.

2 NaCl + C₂O₄²⁻ → Na₂C₂O₄ + Cl₂

CaCl₂+ C₂O₄²⁻ → CaC₂O₄ + Cl₂

Thus, it would differ whether the main product is sodium oxalate or calcium oxalate. In their solid forms, both are white. However, calcium oxalate is insoluble in water, while sodium oxalate is slightly soluble. So, if you used NaCl instead of CaCl₂, you wouldn't observe any precipitate in your solution. If there is, it would only be minute.
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Determine the rate of a reaction that follows the rate law rate = k a m b i where
ikadub [295]
(missing part of your question):
when we have K = 1 x 10^-2 and [A] = 2 M & [B] = 3M & m= 2 & i = 1
So when the rate = K[A]^m [B]^i
and when we have m + i = 3 so the order of this reaction is 3 So the unit of K is L^2.mol^-2S^-1
So by substitution:
∴ the rate = (1x 10 ^-2 L^-2.mol^-2S^-1)*(2 mol.L^-1)^2*(3mol.L^-1)
                 = 0.12 mol.L^-1.S^-1
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3 years ago
T or F: The mass of an answer is so small it is rounded to 0 amu
Nutka1998 [239]
True because it doesn’t count as a full number
6 0
2 years ago
Chemistry, please help! Thanks.
Ilya [14]

Answer:

d. The gold(III) ion is most easily reduced.

Explanation:

The standard reduction potentials are

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Zn²⁺ + 2e⁻ ⟶ Zn; -0.76 V

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A <em>more positive voltage</em> means that there is a <em>stronger driving force</em> for the reaction.

Thus, Au³⁺ is the best acceptor of electrons.

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Au³⁺ is most easily reduced.

4 0
3 years ago
Which is the scientific notation for 8,002.5 seg?
Blizzard [7]
8,002.5 would be written as 
8.0025 x 10 and 3
because you move the decimal place 3 times to the left.
7 0
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Mass defect is associated with: nuclear fusion nuclear fission radioactive decay mass lost by nuclear collisions
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5 0
3 years ago
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