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Reil [10]
3 years ago
10

After standardizing a NaOH solution, you use it to titrate an HCl solution known to have a concentration of 0.203 M. You perform

five titrations and obtain the following results: 0.210, 0.204, 0.201, 0.202, and 0.197 M. a) What is the mean
Chemistry
1 answer:
jek_recluse [69]3 years ago
8 0

Answer:

0.203 is the mean of the concentration of the HCl solution

Explanation:

You have 5 concentrations. The most appropiate result is the mean of those results. The mean is a statistical defined as the sum of each result divided by the total amount of results. For the results of the problem, the mean is:

0.210 + 0.204 + 0.201 + 0.202 + 0.197 = 1.014 / 5 =

<h3>0.203 is the mean of the concentration of the HCl solution</h3>
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The cells differentiate.

Explanation:

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Multicellular organism contain different types of cells.  The different cells differentiate to perform a particular function. The division of labor property is well shown by the multi cellular organism. The cells of the multi cellular organism must show differentiation process.

Thus, the correct answer is option (d).

7 0
3 years ago
I<br> Solid iron(III) oxide is produced when hot iron filings are exposed to pure<br> oxygen gas.
Sergeu [11.5K]
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8 0
3 years ago
A Metal mass of 71.68g occupies a volume of 8cm^3. Calculate the density
Damm [24]
Density = mass
                --------------
                 volume
 
             =        71.68
                    -------------
                          8
 
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Hope this helps!

5 0
4 years ago
Which of the following best describes what happens when hydrogen and oxygen to form water?
Sever21 [200]

Atoms are combining to form molecules

6 0
3 years ago
Define standard solution , molarity titrant and titrand​
dmitriy555 [2]

Answer:

In analytical chemistry, the titrant is a solution of known concentration that is added (titrated) to another solution to determine the concentration of a second chemical species. The titrant may also be called the titrator, the reagent, or the standard solution.

hope it helps (^^)

# Cary on learning

3 0
3 years ago
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