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valentinak56 [21]
4 years ago
9

Which statement concerning the hydrated hydrogen ion is incorrect? (a) Although we often represent hydrogen ions as bare protons

(H+), we know they are hydrated in aqueous solutions. (b) It is now known that hydrogen ions exist as H+(H2O)n where n is a small integer. (c) The value of n for H+(H2O)n can be calculated for almost all solutions. (d) The hydrated hydrogen ion is the species that gives aqueous solutions of acids their characteristic acidic properties. (e) The hydrogen ion is often represented in equations by H+(aq), H3O+, or even H+.
Chemistry
1 answer:
Harrizon [31]4 years ago
5 0

Answer:C. The value of n for H+(H2O)n can be calculated for almost all solutions.

Explanation:

An hydrate can be described as a substance that contains water or with an hydrogen bonded water molecule group.

The hydrate group doesn't necessarily have a fixed formula.

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If 52.5 mL of lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.248 g of precipitate, wh
user100 [1]

Explanation:

The volume of given lead nitrate solution is:

52.5 mL.

The amount of lead iodide formed is ---0.248 g.

To get the molarity of lead (II) ion follow the below-shown procedure:

The number of moles of lead iodide formed is:

number of moles of lead iodide(n)=mass of lead iodide/its molecular mass\\n=0.248 g/461.01g/mol\\n=0.000537mol

0.000537 mole of lead iodide contains --- 0.000537 moles of lead (II) ion.

Thus, the number of moles are there, volume is there, and to get the molarity of lead (II) ion use the formula:

Molarity=\frac{number of moles}{volume in L.} \\M=0.000537 mol / 0.0525 L.\\M=0.0102mol/L

Molarity of lead iodide is --- 0.0102 M.

7 0
3 years ago
During a combustion reaction, 12.2 grams of methane reacts with 14 g of oxygen. The reaction produces carbon dioxide and water.
iogann1982 [59]

The reaction produces 6 g of carbon dioxide.

The word equation is

methane + oxygen → carbon dioxide + water

 12.2 g    +    4 g     →            x g          +  20 g

The <em>Law of Conservation of Mass</em> tells us the total mass of the reactants must equal the mass of the products. Then

12.2 g + 14 g =<em> x</em> g + 20 g

<em>x</em> = 12.2 + 14 – 20 = 6

The mass of carbon dioxide is 6 g.

<em>Note</em>: The answer can have <em>no decimal places</em> because you gave none for the masses of oxygen and water.

5 0
4 years ago
A beaker contains a small amount of baking soda. A few drops of hydrochloric acid are added to the baking soda. Fizzing and bubb
frozen [14]

Answer:

rfkrie

Explanation:

4 0
3 years ago
Please Help!
Zarrin [17]

CdCl2+2NH4NO3

It is substitution reaction

Cd is metal with 2+ which connect with Cl(-)

NO3 with NH4 form salt

5 0
3 years ago
Read 2 more answers
Question 2 (1 point)
Alex73 [517]

Answer:

35 amu

Explanation:

In an atom, only masses of protons and neutrons are relevant. electrons are so small in size that their masses are negligible.

The mass of 1 proton/neutron is 1amu.

6 0
3 years ago
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