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hammer [34]
3 years ago
8

What element is being oxidized in the following redox reaction? Pb 2+(aq) + NH4 +(aq) - Pb(s) + NO3 (aq)

Chemistry
1 answer:
castortr0y [4]3 years ago
5 0
The answer for your question is c.
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The following redox reaction is conducted with [Al3+] = 0.12 M and [Mn2+] = 1.5 M.
Ronch [10]

Answer:

0.47V

Explanation:

2 Al(s) + 3 Mn2+(aq) → 2 Al3+(aq) + 3 Mn(s)

n= 6 ( six moles of electrons were transferred)

Q= [Red]/[Ox] but [Red]= 1.5M, [Ox] = 0.12 M

Q= 1.5/0.12= 12.5

From Nernst equation:

E= E°cell- 0.0592/n log Q

E°cell= 0.48 V

E= 0.48 - 0.0592/6 log (12.5)

E= 0.47V

6 0
4 years ago
Which part of modern atomic theory was first developed by John Dalton?
Nuetrik [128]
C. one of the discoveries he made which gave him his fame in the scientific community was that the atom could not be destroyed
3 0
3 years ago
Which of these is a characteristic of science?
kolezko [41]

Answer:

It follows a clearly laid out method.

3 0
4 years ago
As a roller coaster is going UP the first hill, what is happening to the KE?
SpyIntel [72]

Explanation:

It should be decreasing, and the potential energy increasing, since Law of Conversation of Energy, right?

Also, if you think about what happens when it goes down, it loses potential and gains kinetic, so maybe the opposite should happen when it goes up.

7 0
3 years ago
Read 2 more answers
What volume of a substance will have a mass exactly 750 g if the specific gravity of the substance is 12.2
Ket [755]

The volume of the substance is 61.4 litres.

Explanation:

Specific density is the ratio of density of a substance at a given temperature with the density of reference substance.

Data given:

mass = 750 grams

specific gravity = 12.2

volume=?

The formula to be used:

Specific gravity = \frac{density of the object}{density of the reference substance}

suppose the other substance is water so its density is 1g/ml at 4 degrees

Putting the values to the equation:

density of the object = 1 x12.2

density of the substance = 12.2

Now using the formula:

density = \frac{mass}{volume}

putting the values in the equation:

volume = \frac{750}{12.2}

            = 61.4ml is the volume of the substance.

3 0
3 years ago
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