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White raven [17]
3 years ago
11

A coiled spring with coils that are closely spaced then widely then closely then widely then closely, ending with a yellow line

labeled 1 second.
What is the frequency of this wave?

1
2
3
4
Chemistry
2 answers:
Lana71 [14]3 years ago
5 0

Answer:

2

Explanation:

Kobotan [32]3 years ago
4 0

Answer:

2

Explanation:

got it right on a unit test on 3d3nuity

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Answer:

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Explanation:

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6 0
2 years ago
What is the density of ammonia (NH3) at 293 K and 0.913 atm?
Anastaziya [24]

Answer:  The density of  Ammonia is 0.648 g/l

Explanation:

Density = Mass/ Volume

Mass of one mole of  Ammonia (NH3) = 17.031g

Volume =?

Using the ideal gas law we can determine the volume.

PV = nRT

P = 0.913 atm, V= ?, n = 1, R = 0.08206 L.atm/K, and T= 293K

Make V the subject of the formular, we then have;

V= nRT/ P = 1 mol x 0.08206 L.atm/ K.mol x 293 / 0.913 atm

               V = 24.04358/ 0.913 = 26.3L

Having gotten the value of Volume in this question, we then go back to solve for density.

Density = Mass/ Volume

                17.031g/ 26.3L = 0.64756 ≈ 0.648 g/l

7 0
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4 0
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stira [4]

Answer:

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