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Vinvika [58]
3 years ago
11

At a particular temperature, the solubility of O₂ in water is 0.0500 M when the partial pressure is 0.120 atm. What will the sol

ubility be when the partial pressure of O₂ is 2.470 atm?
Chemistry
1 answer:
uranmaximum [27]3 years ago
4 0

Answer:

At a partial pressure of 2.470 atm, solubility of O_{2} is 1.03 M

Explanation:

The given problem can be solved by using Henry's law

According to Henry's law at a particular temperature for a particular gas and solvent:                        \frac{S_{1}}{S_{2}}=\frac{P_{1}}{P_{2}}

where, S_{1} and S_{2} are solubility of the gas at a partial pressure of P_{1} and P_{2} respectively.

Here, S_{1}=0.0500M, P_{1}=0.120atm and P_{2}=2.470atm

So, S_{2}=\frac{S_{1}P_{2}}{P_{1}}=\frac{(0.0500M)\times (2.470atm)}{0.120atm}=1.03M

Hence, at a partial pressure of 2.470 atm, solubility of O_{2} is 1.03 M

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What principle do we use in writing the formula of an ionic compound such as NaCl or MgI2? How do we know that two iodide ions a
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Answer:

We know based on the charges of each ion and the fact that they must always sum to 0

Explanation:

Na only has one outer electon to give so it is always +1

Mg has two outer electrons so it always gets +2

Halogens have one "missing" electron in their outer shell so they get a -1

For NaCl  (+1) + (-1) = 0

For MgI2 (+2) + 2(-1) = 0

6 0
3 years ago
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anyanavicka [17]

Answer:

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6 0
3 years ago
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In a chemical equation, the new substance that is produced from a chemical reaction is called __________.
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Answer:

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6 0
3 years ago
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If you have 6.25g of O2, how many moles of H2O are produced?
denis23 [38]

Answer:

0.4 moles of water produced by 6.25 g of oxygen.

Explanation:

Given data:

Mass of oxygen = 6.25 g

Moles of water produced = ?

Solution:

Chemical equation;

2H₂ + O₂  → 2H₂O

Number of moles of oxygen:

Number of moles = mass/ molar mass

Number of moles = 6.35 g/ 32 g/mol

Number of moles = 0.2 mol

Now we will compare the moles of oxygen with water:

                    O₂          :          H₂O

                     1            :            2

                   0.2          :        2×0.2 = 0.4 mol

0.4 moles of water produced by 6.25 g of oxygen.

8 0
3 years ago
What is the molar mass of (NH4)3 PO4? 113g, 121g, 149g, 339g
allochka39001 [22]
(NH4)3PO4 :

N = 14 * 3 =  42
H = 1 * 12 = 12
P = 31 * 1 = 31
O = 16 * 4 = 64
-------------------------
42+12+31+64 =  149 g / mol

Hope this helps!.


7 0
3 years ago
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