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marishachu [46]
2 years ago
15

Drag each label to the correct location on the image identify the parts of the energy diagram

Chemistry
2 answers:
Llana [10]2 years ago
8 0
Can you please put a picture please so I can help you
diamong [38]2 years ago
4 0
If you would’ve attached a picture I’m sure it would’ve been a lot easier.
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<span>The number of moles of Cl- ions needed to combine completely with 0.25 mole of Mg+2 ions is:
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Much like a battery, wood contains stored energy. What energy transformations occur when wood is burned?
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For each trial, compute the mol of titrant; (molarity x L) and keep the number of significant figures to 4.
MrMuchimi

Answer:

Trial     Number of moles

           

  1          0.001249mol

  2         0.001232mol

  3          0.001187 mol

Explanation:

To calculate the <em>number of moles of tritant</em> you need its<em> molarity</em>.

Since the<em> molarity</em> is not reported, I will use 0.1000M (four significant figures), which is used in other similar problems.

<em>Molarity</em> is the concentration of the solution in number of moles of solute per liter of solution.

In this case the solute is <em>NaOH</em>.

The formula is:

          Molarity=\dfrac{\text{Number of moles of solute}}{\text{Volume of solution in liters}}

Solve for the <em>number of moles:</em>

          \text{Number of moles}=Molarity\times Volume\text{ }in\text{ }liters

Then, using the molarity of 0.1000M and the volumes for each trial you can calculate the number of moles of tritant.

Trial    mL           liters          Number of moles

           

1          12.49       0.01249        0.01249liters × 0.1000M = 0.001249mol

2         12.32      0.01232         0.01232liters × 0.1000M = 0.001232mol

3          11.87       0.01187         0.01187liters × 0.1000M = 0.001187 mol

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3 years ago
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D 5. Choose the correct answer.
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Answer:

from where should I have to chose

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