The number of moles of chloride ions in 250 ml of 4.00 M MgCL2

1 answer:

6 0

If you mean 4 moles per litre then:
In 1 litre there is 4 moles, therefore in .25 litres there is 1 mole.
1 mole of Magnesium Chloride would produce 2 moles of chloride ions (MgCl2 can also be written as Mg1Cl2, which dissolves to produce 1Mg(2+) and 2Cl(1-) ions: a 1:2 ratio)

So the answer is 2 moles of Chloride ions.

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Chemistry unit 3 lesson 14 unit test connexus

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Write the complete balanced equation for the neutralization reaction that occurs when aqueous hydroiodic acid, HI, and sodium hy

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H+ ( aq ) + HCO3- ( aq ) ------> H2O( l ) + CO2 ( g )

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The complete reaction when hydroiodic acid and sodium hydrogen carbonate combine, would be as follows -

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net reaction

H2CO3 is highly unstable, and thus decomposes into the water and carbon dioxide you see present as the reactants. If you didn't know already, H2CO3 is also reffered to as carbonic acid. The rest of the elements present on the reactant side are Iodine and Sodium, which is why they are present on the product side as NaI.

Let me include the " physical states " in this reaction as well -

HI ( aq ) + NaHCO3 ( aq ) ----> NaI ( aq ) + H2O ( l ) + CO2 ( g )

Now the complete ionic equation would simply be each compound present as ions in an aqueous solution, so there is no need for an explanation on this step -

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Hope that helps!

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3 years ago

10. When a 13.6 g sample of a compound containing only magnesium and oxygen is decomposed, 5.4 g of oxygen is obtained. What is

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Answer:5.4 g / 13.6 g *100

Explanation:Its is the correct answer

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Read 2 more answers

Two or more assistance

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I believe it would be a compound.

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3 years ago