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Vlad1618 [11]
3 years ago
8

Velocity requires which 2 things?

Chemistry
2 answers:
Nezavi [6.7K]3 years ago
6 0
Its b ()(-(/(:)/(/;:
scoundrel [369]3 years ago
5 0
Direction and speed. Explanation: Velocity is a vector quantity, meaning that direction matters as opposed to speed, which is a scalar quantity.
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Bc it’s the only group that distinguishes amino acids from one another’s
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I’ve gotten the answer as x=.478 but when plugging back in, .46/.478 ≠ .22. Help please
ivanzaharov [21]

Answer:

15. 2.66 moles .

16. 2.09L.

Explanation:

Molarity of a solution is simply defined as the mole of solute per unit litre of the solvent. Mathematically, it is represented as:

Molarity = mole /Volume.

With the above formula, let us answer the questions given above

15. Data obtained from the question include the following:

Volume of solution = 1.4L

Molarity = 1.9M

Mole of solute =.?

Molarity = mole /Volume

1.9 = mole / 1.4

Cross multiply

Mole = 1.9 x 1.4

Mole = 2.66 moles

Therefore, the mole of the solute present in the solution is 2.66 moles.

16. Data obtained from the question include the following:

Mole of solute = 0.46 mole

Molarity = 0.22M

Volume of solvent (water) =.?

Molarity = mole /Volume

0.22 = 0.46/Volume

Cross multiply

0.22 x Volume = 0.46

Divide both side 0.22

Volume = 0.46/0.22

Volume = 2.09L

Therefore, 2.09L of water is required.

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21. What is the frequency, given 2-3 x 10¹m? Show all work
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Answer:

Frequency is 2Hz

Explanation:

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What is the maximum number of electrons that an atomic orbital can contain?<br> 2<br> 1<br> 8<br> 32
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