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stellarik [79]
2 years ago
8

Find the total number of moles of ions produced when 0.347 mol of sodium carbonate dissolves.

Chemistry
1 answer:
Ahat [919]2 years ago
4 0

Answer:

molarity= 0.238 mol L-

Explanation:

The idea here is that you need to use the fact that all the moles of sodium phosphate that you dissolve to make this solution will dissociate to produce sodium cations to calculate the concentration of the sodium cations.

Na 3 PO 4 (aq) → Na + (aq) + PO3−4 (aq)

Use the molar mass of sodium phosphate to calculate the number of moles of salt used to make this solution.

3.25g⋅1 mole N 3PO4 163.9g = 0.01983 moles Na3 PO 4

Now, notice that every

1 mole of sodium phosphate that you dissolve in water dissociates to produce

3bmoles of sodium cations in aqueous solution.

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Answer;

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2 years ago
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3 0
3 years ago
Which compound has the same empirical and molecular formula ethyne ethene ethane methane?
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molecular formula is the actual ratio of components in a compound .
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ethene - C₂H₄
ethane - C₂H₆
methane - CH₄
the actual ratios of the elements                 simplified ratio
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ethyne            2:2                                             1:1
ethene            2:4                                             1:2
ethane            2:6                                             1:3
methane         1:4                                             1:4
the only compound where the actual ratio is equal to the simplified ratio is methane 
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6 0
3 years ago
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