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LenKa [72]
4 years ago
7

If a solution has a perfect neutral pH, what is the concentration of hydrionium ions in the solution

Chemistry
1 answer:
Oksana_A [137]4 years ago
7 0

Neutral pH means a pH of 7, yes? Recall that 'pH' means the POWER of Hydrogen. You should be familiar with the equation : pH = -log[H+].

In this case, 7 = log[H+].

Mathematically rearranged, this means that to find H+ concentration,

[H+] = 10 ^-pH.

In this case, [H+] = 10 ^-7.

I am assuming this is conducted at a standard 25 degrees. The auto-dissociation formula of water is this: Kw = [H3O+] x [OH-] at 25 degrees.

The concentration of Hydronium is the same as the concentration of hydrogen, 10 ^-7.  mol/L.

There's your answer!

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What is the mass of 23 moles of lithium atoms
allochka39001 [22]

Take 23mols and multiply it by the atomic mass of Li:

23mol  * 6.94g/mol = 159.62g

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How are different natural disasters related? What different causes and effects of natural disasters do you know about?
pantera1 [17]

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2 years ago
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Given the a+b=c what is the reaction given
Vikentia [17]

The generic reaction a + b = c, represents a synthesis or combination reaction, which is a kind of chemical reaction.

<h3>What is a synthesis reaction?</h3>

A synthesis, or combination reaction, is a kind of reaction in which two substances combine to form a bigger molecule.

The generic reaction is:

a + b = c

Some common synthesis reactions are:

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Fe + S = FeS

  • One element and one compound combine to form a compound.

O₂ + 2 SO₂ = 2 SO₃

  • Two compounds combine to form another compound.

CaO + CO₂ = CaCO₃

In all the examples above, we can verify that the substances (elements or compounds) combine with each other to form another substance (product).

The generic reaction a + b = c, represents a synthesis or combination reaction, which is a kind of chemical reaction.

Learn more about synthesis reactions here: brainly.com/question/16560802

#SPJ1

3 0
2 years ago
Please help me name this alkane
Mrac [35]
I assume you are already familiar with the IUPAC rules.  I will be referring to the rule number where applicable.  If you do not have a copy of the IUPAC rules, please let me know by a comment or PM.

Alkane (A)
The first one is tricky, because the longest straight chain is not as drawn, but along a "branch".  See first image.
Since there are 10 carbon atoms in the longest chain, the parent chain will be named decane.
The first substituent occurs in C3, that explains why the parent chain is named from right to left.
Now the substituents:
C3 :  Cl and CH3, so 3-chloro  3-methyl
C6 :  The Y-shape is named isopropyl, so 6-isopropyl
C7 :  Substituent is a straight chain with 2 carbon atoms, so 7-ethyl
The complete name is therefore
3-chloro-7-ethyl-3-methyl-6-isopropyl-decane
Note that order is according to alphabetic order of the substituent name without the prefixes (explains why isopropyl comes after methyl)

Alkane (B)
Again, first step is to look for the longest chain, which is 11 (undecane), as numbered in image 2.
Numbering starts from the 2,2-dichloro end because it gives the lowest number for the locant.
C2 2,2-dichloro  (2 branches, each is Cl)
C4 4-methyl  (1 carbon atom)C5 5-ethyl   (2 carbon atoms)
C8 8-ethyl    
C9 9-methyl
So the complete name is 
2-2-dichloro-5,8-diethyl-4,9-dimethyl-undecane

Alkane (C)
Here there are 9 carbon atoms (nonane) in the longest chain.
The locants of substituents are identical from either end.  Here I choose the one with the smaller number of the first substitutent 2-methyl instead of 2,2-dimethyl, resulting the numbering starting from the right.  I hope I am right here.
C2 1-methyl
C3 1-methyl
C4 1-methyl
C5 1-methyl
C6 6-fluro-6-iodo
C7 1-methyl
C8 8,8-dimethyl
So the complete name becomes
6-fluoro-6-iodo-2,3,4,5,7,8,8-heptamethyl nonane

To @study77 and anyone reading this answer:
Please check and understand everything I did in case I slipped somewhere.  Any suggestion for improvement or corrections will be most appreciated.

8 0
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Alecsey [184]

Answer:

sugar is hygroscopic

Explanation:

sugar is hygroscopic

5 0
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