If you were given two transparent liquids how would you determine which is pure and which is salt water

Chemistry

1 answer:

Tpy6a [65]3 years ago

8 0

Based off the salt levels in each water.

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How do the names of covalent compounds differ from the names of ionic compounds?

Tresset [83]

Covalent bonds are named by using prefixes that give the number of atoms of each element in the compound. Ionic compounds are named by replacing the ending of the nonmetal with ate or ite. 6.

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3 years ago

The pH of a 0.1 M solution of an unknown weak acid is 3.7. What is the pKa of this acid?

Ahat [919]

Explanation:

Knowing the pH, you know the concentration of protons:

−log[H+]=pH=3.7

[H+]=10−3.7 M

Now, since the weak (monoprotic) acid dissociates into its conjugate base and a proton, the mols of protons are equimolar with the mols of conjugate base---the protons came FROM the weak acid, so the conjugate base that forms must be equimolar with the protons given out to the solvent.

HA⇌A−+H+

Hence, [A−]=[H+] in the same solution volume. Using the equilibrium constant expression, we get:

Ka=[H+]2eq[HA]eq

Don't forget that the HA form of HA had given away protons, so the mols of protons given away to generate A− is subtracted from the mols of (protons in) HA.

=[H+]2eq[HA]i−[H+]eq

=(10−3.7M)20.02M−10−3.7M

Ka=2.0105×10−6 M

8 0

3 years ago

_________-have definite shapes and volumes because particles are packed closely together and merely vibrate in place.

slamgirl [31]

The answer to this is solid

7 0

4 years ago

when glycerol reacts with three different fatty acids, how many stereogenic centers does the product triacylglycerol contain?

UNO [17]

Answer:

Explanation:

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3 years ago

Can someone please help me out with my homework. I don't understand this at all and it's due tomorrow 1st period. Thx

IrinaVladis [17]

2.

move constantly

3.
solid - definite shape and volume

liquid - only definite volume

gas - none.

4.

The particles of gases have large interparticular space between them and they move constantly and sometimes these particles move away leading to change in volume but in case of solids the particles are packed tightly with low interparticular spaces and high interparticular force.

5.

shown in image above.

6 0

3 years ago