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weqwewe [10]
3 years ago
13

What is the H+ concentration when pH is 2, 6, 7, 8, and 12?

Chemistry
2 answers:
Mariulka [41]3 years ago
6 0

Answer:

See below.

Explanation:

pH = - log (H+)

So the pH of 1 x 10^-7 M solution is 7.

I'm sorry but I'm not sure about what the other units mean, so Im not sure of the answer to those.

If you convert the other units to the form  1 x 10^-n  then the pH will be n.

stealth61 [152]3 years ago
4 0

Answer:

What is the H+Concentration when oh is2,6

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Answer:

Only Organism Z is alive, and Organism X has been dead longer than Organism Y.

Explanation:

After the death of an organism, there is radioactive disintegration of C-14 allotrope of carbon, which increases the ratio of C-12 to C-14 in a dead organism as compared to a living organism.

7 0
3 years ago
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. I
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Answer : The final concentration of the seawater is, 2.909 mole/L

Explanation :

Formula used for osmotic pressure :

\pi=CRT

where,

\pi = osmotic pressure  = 70.0 bar = 70 atm

R = solution constant  = 0.0821 Latm/moleK

T= temperature of solution = 20^oC=273+20=293K

C = final concentration of seawater = ?

Now put all the given values in the above formula, we get the concentration of seawater.

70atm=C\times 0.0821Latm/moleK\times 293K

C=2.909mole/L

Therefore, the final concentration of the seawater is, 2.909 mole/L

4 0
4 years ago
Two students prepare lab reports one for a chemistry class and the other for a biology class which of the following items will b
AleksandrR [38]

Answer:

the results of an investigation thank me later

Explanation:

4 0
3 years ago
Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you t
Lelu [443]

Answer:

Sample A - mixture

Sample B- Mixture

Explanation:

Looking at sample A, we can see that as water was poured over sample A, the sample was separated into its components as the powder disappeared leaving behind a gritty black sand-like material on the surface of the paper. A separation of the mixture has taken place.

In sample B, we can clearly see that it is a mixture because the amount of solid recovered is much less than the total mass of the solid put into the beaker. The sample must have been separated into its components.

8 0
3 years ago
How would you find 8m of carbon chloride using 87.9g carbon chloride
vaieri [72.5K]

Answer:

Explanation:

I want to believe that your question is how to find an 8M carbon chloride solution using the given mass of the compound.

The problem clearly identifies with concentration of a substance. Molarity is one of the ways of expressing concentration. It is the amount of solute of a substance per volume of solution.

     Molarity  = \frac{number of moles of solute}{Volume of solution}

To find the right mix that will give us 8M carbon chloride solution, let's explore how to figure out the appropriate volume.

Clearly given is the mass of the compound, convert to number of moles.

  Number of moles  = \frac{mass}{molar mass}

            Molar mass of carbon chloride(CCl₄)  = 12 + 4(35.5)  = 154g/mol

Number of moles  = \frac{87.9}{154}   = 0.57moles

To find the volume;

            8    =    \frac{0.57}{v}

            volume = 0.071L or 71mL

7 0
3 years ago
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