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valentinak56 [21]
3 years ago
14

Although HCl and H2SO4 have very different properties as pure substances, their aqueous solutions possess many common properties

. List some general properties of these solutions, and explain their common behavior in terms of the species present.
Chemistry
1 answer:
yarga [219]3 years ago
7 0

Answer:

Below are some general properties of these (HCl and H2SO4) solutions, and their common behavior in terms of the species present.

Explanation:

1) Aqueous solutions of these acids have a sour taste.  i.e they  can destroy body tissue and materials.

2) Both acids react with active metals and release hydrogen gas, H2.

Recall, in terms of an activity series. Metals  above hydrogen in the series undergo displacement reactions with these acids. For example

2Na + 2HCl  ------- 2NaCl + H2

and 2Na + H2SO4  ------- Na2SO4 + H2

3) The acids will react with bases to produce salts and water. These are neutralization reaction s and the products are water and an ionic compound called a salt. For example

NaOH + HCl --------- NaCl + H2O

2NaOH + H2SO4 ---------- Na2SO4 + 2H2O

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Graham's law indicates that the rate of diffusion is inversely proportional to the square root of its molecular weight. So the lighter the gas, the more rapid the diffusion. With that in mind, let's look at your questions:

1. A flask contains four gases: CH4, O2, C2H5, and N2. When the stopper is removed, which gas will diffuse the fastest?The answer here will be the lightest of the 4 gasses. So let's look at the molar mass of each gas:
CH4 = 16.04 g/mol
O2 = 32.00 g/mol
C2H5 = 29.06
N2 = 28.01
And CH4 is the lightest and therefore the fastest.

2. Which gas effuses 2.39 times slower than nitrogen gas? O2 Cl2 Br2 <--- I2
Let's start with the square root of 28.01 which is 5.292447449.
Now multiply by 2.39 and square the result to get the molar mass of the
desired gas which is (5.29*2.39)^2 = 12.64^2 = 159.77Now let's look at the molar masses.
O2 = 32
Cl2 = 70.91
Br2 = 159.81
I2 = 253.81
And the match goes to Br2

3. What is the molecular mass of a gas that effuses three times faster than radon? 16 g/mol 25 g/mol <--- 50 g/mol 67 g/mol,The molar mass of radon is 222 g/mol. So let's get the square root, divide by
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