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creativ13 [48]
3 years ago
14

Help pls i will give brainly (PLS DONT CHOOSE THE WRONG ONE)

Chemistry
2 answers:
Gnom [1K]3 years ago
7 0

Answer:

C Aug sept oct

Explanation:

kherson [118]3 years ago
3 0

Answer:

C. August, September, October

Explanation:

Hope this helps brainliest? :)

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Solute S has a partition coefficient of 6.2 between water (phase 1) and hexane (phase 2). 74.0 mL solution of S in water is extr
amid [387]

Explanation:

The given data is as follows.

      Partition coefficient, K = 6.2

      Volume of phase 1, V_{1} = 74.0 mL

      Volume of phase 2, V_{2} = 17.0 mL

So, after one extraction fraction of solute remaining is given as follows.

              q = \frac{V_{1}}{V_{1} + KV_{2}}

After 3 times extraction, fraction of S remaining is as follows.

              q = [\frac{V_{1}}{V_{1} + KV_{2}}]^{3}

Putting the given values into the above formula as follows.

               q = [\frac{V_{1}}{V_{1} + KV_{2}}]^{3}

                  = [\frac{74.0 ml}{74.0 ml + 6.2 \times 17.0 ml}]^{3}

                  = [\frac{74.0 ml}{179.4 ml}]^{3}

                  = 0.0699

Thus, we can conclude that the fraction of S remaining in the aqueous phase is 0.0699.

6 0
4 years ago
What is the amount of solute required if the solution is 50 ml and the solvent is 35 ml. Solve and explain
e-lub [12.9K]

Answer:

15 mL of the solute

Explanation:

From the question given above, the following data were obtained:

Solution = 50 mL

Solvent = 35 mL

Solute =?

Solution is simply defined as:

Solution = solute + solvent

With the above formula, we can easily obtain the solute in the solution as follow:

Solution = 50 mL

Solvent = 35 mL

Solute =?

Solution = solute + solvent.

50 = solute + 35

Collect like terms

50 – 35 = solute

15 = solute

Solute = 15 mL

Therefore, 15 mL of the solute is required.

3 0
3 years ago
1. Convert the following:<br> 5 meters =<br> kilometers
a_sh-v [17]
It equals 0.005 but plz mark this as the brainliest question plz

5 0
4 years ago
Read 2 more answers
Upon heating, a 5.41 g sample of a compound decomposes into 2.37 g n 2 ​ and 3.04 g h 2 ​ o. if the molar mass of the compound i
Elan Coil [88]
Answer is: empirical formula is H₄N₂O₂.
m(unknown compound) = 8,5 g.
m(N₂) = 2,37 g.m(H₂O) = 3,04 g.
n(N₂) = m(N₂) ÷ M(N₂).
n(N₂) = 2,37 g ÷ 28 g/mol.
n(N₂) = 0,0846 mol.
n(H₂O) = m(H₂O) ÷ M(H₂O).
n(H₂O) = 3,04 g ÷ 18 g/mol.
n(H₂O) = 0,168 mol.
n(H₂O) : n(N₂) = 0,168 mol : 0,0846 mol.
n(H₂O) : n(N₂) = 2 : 1.
Compound has four hydrogen, two oxygen and two oxygen.
3 0
3 years ago
Read 2 more answers
All of the following animals are adapted to living in the temperate zone EXCEPT:
Verizon [17]
It will be easier to answer if you show the choices.
8 0
4 years ago
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