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Firlakuza [10]
2 years ago
5

76.0 mol of P4O10 contains how many moles of P?

Chemistry
2 answers:
NikAS [45]2 years ago
8 0
For a mole of P4O10, there are 4 moles of P. Hence for 76 moles of P4O10, the number of P moles is a total of 304. 
MAVERICK [17]2 years ago
6 0

Answer : The number of moles of phosphorous are 304 moles.

Explanation :

The formula of given compound is, P_4O_{10}

In P_4O_{10} compound, there 4 moles of phosphorus and 10 moles of oxygen.

As we are given that the moles of P_4O_{10} is 76.0 mole. Now we have to determine the number of moles of phosphorous (P).

As, 1 mole of P_4O_{10} has 4 moles of phosphorous

So, 76.0 mole of P_4O_{10} has 4\times 76.0=304moles of phosphorous

Therefore, the number of moles of phosphorous are 304 moles.

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maks197457 [2]

Answer:

15.70mg would remain

Explanation:

Partition coefficient is used to extract or purify a solute from a solvent selectively to avoid interference from other substances. For the problem, formula is:

Kp = Concentration 9-fluorenone in ether / Concentration of solute in H₂O

After the solute, 9-fluorenone, is extracted with water, the mass that remains in ether is:

(19mg - X)

<em>Where X is the mass that now is in the aqueous phase</em>

Replacing in Kp formula:

9.5 = (19mg - X) / 5mL / (X /10mL)

0.95X = 19mg - X / 5mL

4.75X = 19 - X

5.75X = 19

X = 19 / 5.75

X = 3.30mg

That means 9-fluorenone that remain in the ether layer is:

19mg - 3.30mg =

<h3>15.70mg would remain</h3>
8 0
3 years ago
Why do different molecules require different masses to make 1 mol
Wewaii [24]

Answer:

Different substances have different molecular masses. Thus, equal masses have different numbers of atoms, molecules, or moles. On the other hand, equal numbers of moles of different substances have different masses.

3 0
3 years ago
ILL GIVE BRAILNEST!!!!! PLZ HELP ME FAST
NemiM [27]
Multiple states of matter - mixture
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(True or false) The blood carries hormones to target tissues around the body so the hormones can control the activity of those c
AlladinOne [14]

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Explanation:

8 0
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Calculate the percent composition by mass of iron in Fe(NO3)3
Dovator [93]

Answer:

It's 23.14 percent

Explanation:

First, the mass of all the elements are:

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In this molecule you have 3 atoms of N, and 9 atoms of O, so:

3•14 = 42

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The whole mass of the molecule is:

56 + 42 + 144 = 242

242/100 = 2.42, so 1% is 2.42

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3 years ago
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