Which one of the following pair has the same number of ions?

2 answers:

vladimir1956 [14]3 years ago

8 0

Which one of the following pair has the same number of ions?

(c)1/2 mole of NaCl and 1/3 mole of MgCl3

Hope this helps!

zhuklara [117]3 years ago

6 0

Hahahaaaa none of the above but IF <span>(c) is

1/2 mole of NaCl and 1/3 mole of MgCl2 instead,

then C is the right ans :)</span>

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When excess dilute hydrochloric acid was added to sodium sulphite 960 of sulphuric (iv) oxide was produced. calculate the mass o

irakobra [83]

The mass of sodium sulfite that was used will be 1,890 grams.

<h3>Stoichiometric problems</h3>

First, the equation of the reaction:

$NaSO_3 + 2HCl --- > NaCl_2 + H_2O + SO_2$

The mole ratio of SO2 produced and sodium sulfite that reacted is 1:1.

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More on stoichiometric problems can be found here: brainly.com/question/14465605

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How would you prepare 100 ml of 0.4 M MgSO4 from a stock solution of 2 M MgSO4?

miss Akunina [59]

OK, so to answer this question, you will simply use the molality equation which is as follows:
<span>M1V1 = M2V2
In the givens you have:
M1 = 2M
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</span>plug in the givens in the above equation:
<span>2 x V1 = 0.4 x 100
</span>therefore:
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Based on this: you should take 20 ml of the 2 M solution and make volume exactly 100 ml in a volumetric flask by diluting in water.

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Answer:

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How many grams is 3.35 moles of hcl

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Do this

3.35mol HCl | 34.46g HCl
------------------------------------
1 | 1mol HCl
Multiply all the numbers on top by all the numbers on bottom.

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