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makkiz [27]
4 years ago
11

Which statement correctly evaluates the results of the report?

Chemistry
1 answer:
BaLLatris [955]4 years ago
3 0
I think the correct answer from the choices listed above is the second option. The statement that correctly evaluates the results of the report would be that it is likely to be reliable because the results support the conclusion presented. Hope this answers the question.
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In a sodium chloride solution of concentration 0.1 mol / L, what is the concentration of chloride ions in ppm?​
Fynjy0 [20]

Answer:

3550ppm

<h3>explanation</h3>

A 1 M solution of sodium chloride (NaCl) has a molar mass 35.45 for chloride, which you find from looking up the atomic mass of chlorine on the periodic table and noting there is only 1 Cl ion per NaCl molecule. The mass of sodium doesn't come into play since we're only looking at chloride ions for this problem. So, you now have the relation:

35.45 gram/mole or 35.5 g/mol

You either move the decimal point over one space to the left or multiply this value times 0.1 to get the number of grams in a 0.1 M solution, to give you 3.55 grams per liter for a 0.1 M NaCl solu

tion. 3.55 g/L is the same as 3550 mg/L

Since 1 mg/L is about 1 ppm:

A 0.1 M solution of NaCl has a concentration of about 3550 ppm Cl ions.

5 0
4 years ago
Solve for Va<br><br>MaVa=MbVb​
PolarNik [594]

Answer:

Va = (MbVb)/Ma

Explanation:

Divide both sides by Ma and voila!

8 0
3 years ago
Write a chemical equation representing the second ionization energy for lithium.
Contact [7]
It's likely what's wanted is

<span><span>Li</span>→<span><span>Li</span><span>2+</span></span>+2<span>e−

</span></span>

The reason is because IEs are usually reported from the neutral atom, that is, IE2 is the energy required to remove two electrons from a neutral Li atom, as above, rather than the additional energy required to remove one more electron from an Li+ cation.

3 0
3 years ago
Read 2 more answers
A molecule forms when
Levart [38]
I think answer should be c. Please give me brainlest let me know if it’s correct or not okay thanks
4 0
3 years ago
Find the volume of 56.0 grams of O2
N76 [4]

Answer:

39.2 L at STP

Explanation:

Convert the grams to moles first by dividing 56.0 by the molar mass of O2 (32.0) then convert to volume by multiplying by 22.4.

= 39.2 L

5 0
3 years ago
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