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eduard
2 years ago
10

Write this numeral in scientific notation. 820.5

Chemistry
1 answer:
Viefleur [7K]2 years ago
6 0
The numeral in scientific notation would be 8.205x10^-2
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For the equilibrium, N2O4(g)<----> 2NO2(g), the equilibrium constant Kp = 0.316. Calculate the equilibrium partial pressur
saveliy_v [14]

The equilibrium reaction is

N2O4(g)<----> 2NO2(g)

For reaction

Kp = (pNO2)^2 / pN2O4

Given:

Kp = 0.316

pN2O4 = 3.48 atm

To calculate

pNO2 = ?

0.316 = (pNO2)^2 / 3.48

(pNO2)^2 = 1.0997

pNO2 = 1.049 atm

5 0
2 years ago
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In a particular reaction between copper metal and silver nitrate, 12.7 g cu produced 38.1 g ag. what is the percent yield of sil
LekaFEV [45]
Answer:  
For these problems, we need to compare the theoretical yield that we'd get from performing stoichiometry to the actual yield stated in the problem. % yield is the actual yield/theoretical yield x 100%  
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4 0
2 years ago
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Describe how intermolecular forces affect solvation.
4vir4ik [10]

Answer:

Solvation is affected by inter molecular forces in a sense that these attractive forces overcome the forces that holds the solute and solvent particles together making the solute particles separate form the solvent particles.

Explanation:

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7 0
2 years ago
How many Al atoms are there in 40.5 g of Al foil? Al:27
andrew-mc [135]

Answer:

c) 9.03 x 10^23

Explanation:

find the molar mass of Al

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Then use that, to find the number of moles in Aluminum.

Then use Avogadro's number which is 6.02 * 10^23

After that, write all of that down with dimensional analysis.

40.5 g * 1 mol/ 27.0 g of Al  * 6.02 x 10^23 / 1mol

As your final answer, you will get 9.03 * 10^23 atoms with sig figs.

Hope it helped!

4 0
3 years ago
In a solution, the parts of the solution are mixed A) chemically. B) physically. C) only in water. D) by electronic means.
alisha [4.7K]

B. physically i hope this helps

6 0
3 years ago
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