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True [87]
3 years ago
6

What is the first quartile of the following data set?

Chemistry
1 answer:
Darina [25.2K]3 years ago
6 0

Answer:

hdhhdhhdhgdgdvsgsvsvvsvsvsvsvs

Explanation:

hdhbdbdbdbdbdbxbxbxvxbxbbxbxvxvxvxv

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What is the pressure of a mixture of nitrogen (N2) and oxygen (O2) if partial pressure of N2 is 594 mm Hg and the partial pressu
ipn [44]

Answer:

Total pressure = 759 mmHg

Explanation:

Given data:

Partial pressure of oxygen = 165 mmHg

Partial pressure of nitrogen = 594 mmHg

Total pressure = ?

Solution:

According to Dalton law of partial pressure,

The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.

Mathematical expression:

P(total) = P₁ + P₂ + P₃+ ............+Pₙ

Total pressure = P(O₂) +  P(N₂)

Total pressure =  165 mmHg + 594 mmHg

Total pressure = 759 mmHg

5 0
3 years ago
What is thr total of all the forces on an object .
Katen [24]
Is the combination of all forces acting on an object
6 0
3 years ago
How many total atoms does each element have? <br> Plz help!
VLD [36.1K]

Answer:

14 Calcium (4x3+2)

2 Phosphurus (2)

9 Oxygen (4x2+1)

7 0
3 years ago
Cells which form pathways to and from the brain are <br> .epiltheilal neurons connnective
nikdorinn [45]

Answer:

<u><em>neurons</em></u>

Explanation:

The long-axoned cells, called principal neurons, transmit information over long distances from one brain region to another (Sheperd,1979). Principal neurons provide the pathways of communication within the nervous system.

3 0
2 years ago
Read 2 more answers
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.

6 0
3 years ago
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