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3 years ago

What is the difference between end point and equivalence point?

Chemistry

1 answer:

xxMikexx [17]3 years ago

3 0

Answer:

The difference between the endpoint and the equivalence point is that the endpoint is the point where your indicator will show a change in colour, your equivalence point however is the point when the analyte has completely reacted with the titrant. So the endpoint is when the indicator may change colours, the equivalence point is when the analyte and titrant are stoichiometrically equal

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The equilibrium constant, Kp, has a value of 6.5 × 104 at 308 K for the reaction of nitrogen monoxide with chlorine. 2NO(g) + C

Juliette [100K]

Answer: The $K_c$ for the given reaction is $2.67\times 10^{-2}$

Explanation:

For the given chemical equation:

$2NO(g)+Cl_2\rightleftharpoons 2NOCl(g)$

Relation of $K_p\text{ with }K_c$ is given by the formula:

$K_p=K_c(RT)^{\Delta n_g}$

where,

$K_p$ = equilibrium constant in terms of partial pressure = $6.5\times 10^{-4}$

$K_c$ = equilibrium constant in terms of concentration = ?

R = Gas constant = $0.0821\text{ L atm }mol^{-1}K^{-1}$

T = temperature = 308 K

$\Delta n_g$ = change in number of moles of gas particles $n_{products}-n_{reactants}=2-3=-1$

Putting values in above equation, we get:

$6.5\times 10^{-4}=K_c\times (0.0821\times 500)^{-1}\\\\K_c=\frac{6.5\times 10^{-4}}{(0.0821\times 500)^{-1})}=2.67\times 10^{-2}$

Hence, the $K_c$ for the given reaction is $2.67\times 10^{-2}$

6 0

3 years ago

Nuclear fusion is the combining of atomic nuclei to produce energy and new types of _____. A. light B. power C. matter D. radiat

Drupady [299]

Answer:

C. matter

Explanation:

When hydrogen atoms collide at very high speeds, the natural electrostatic repulsion that exists between the positive charges of their nuclei is overcome and the atoms fuse, this fusion of light hydrogen atoms produces a heavier element, helium.

In short, nuclear fusion is a process by which nuclear reactions between light elements form heavier elements (up to iron), therefore fusion produces new types of matter.

I hope you find this information useful and interesting! Good luck!

7 0

3 years ago

How many co2 molecules are generated from each pyruvate that enters the mitochondria?

saw5 [17]

When 2 molecules of pyruvate from glycolysis enters the mitochondria,
2 molecules of CO2 are released

8 0

3 years ago

If the coefficient 2 is placed in front of the product tetraiodine nonaoxide (I4O9), then, how many atoms of each element must b

gogolik [260]

Answer:

Number of iodine atoms = 2 × 4 = 8

Number of oxygen atoms = 2 × 9 = 18

Explanation:

Coefficient 2 is placed in front of the product tetraiodine nonaoxide:

= $2I_4O_9$

Number of iodine atom in a single molecule tetraiodine nonaoxide = 4

Number of oxygen atoms in a single molecule tetraiodine nonaoxide = 9

Coefficient 2 is placed in front of the product tetraiodine nonaoxide:

= $2I_4O_9$

Number of iodine atoms = 2 × 4 = 8

Number of oxygen atoms = 2 × 9 = 18

4 0

3 years ago

Which soil particle is the smallest, drains water slowly, and holds too much water?

dsp73

Answer:

Clay

Explanation:

Since Clay has a very small particle size it compacts or has a high surface area which slows the path of water, holding it for longer periods compared to other soil components.

5 0

2 years ago