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butalik [34]
3 years ago
7

How many moles of Cl- ions are needed to completely combine with 0.25 moles of Mg+2 ions?

Chemistry
1 answer:
liberstina [14]3 years ago
5 0
Mg⁺² + 2Cl⁻ = MgCl₂

n(Mg⁺²)=0.25 mol

n(Cl⁻)=2n(Mg⁺²)

n(Cl⁻)=2*0.25=0.5 mol
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The graph above shows the changes in temperature recorded for the 2.00 l of h2o surrounding a constant-volume container in which
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Answer:

25.2 kJ

Explanation:

The complete question is presented in the attached image to this answer.

Note that, the heat gained by the 2.00 L of water to raise its temperature from the initial value to its final value comes entirely from the combustion of the benzoic acid since there are no heat losses to the containing vessel or to the environment.

So, to obtained the heat released from the combustion of benzoic acid, we just calculate the heat required to raise the temperature of the water.

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Answer:

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Explanation:

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where, P_{1} and P_{2} are vapor pressures of liquid at T_{1} (in kelvin) and T_{2} (in kelvin) temperatures respectively.

Here, P_{1} = 760.0 mm Hg, T_{1} = 373 K, P_{2} = 314.0 mm Hg

Plug-in all the given values in the above equation:

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6 0
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