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Marizza181 [45]
2 years ago
14

Use the following reaction to answer the question:

Chemistry
1 answer:
MAXImum [283]2 years ago
4 0

Answer:

Mass = 13.14 g

Explanation:

Given data:

Mass of zinc = 11.89 g

Mass of HCl needed = ?

Solution:

Chemical equation:

Zn + 2HCl      →     ZnCl₂ + H₂

Number of moles of Zn:

Number of moles = mass/molar mass

Number of moles = 11.89 g/ 65.38 g/mol

Number of moles = 0.18 mol

Now we will compare the moles of Zn and HCl.

               Zn        :        HCl

                1          :          2

              0.18      :      2/1×0.18 = 0.36 mol

Mass of HCl:

Mass = number of moles × molar mass

Mass = 0.36 mol ×36.5 g/mol

Mass = 13.14 g

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Answer:

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therefore the question can be tested through observation or experiment

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8 0
3 years ago
In the lab there is a vile of mercury and it has a mass of 43.0 grams. If the density of mercury is 13.6 g/mL, what is the volum
Vitek1552 [10]

Answer:

<h2>The answer is 3.16 mL</h2>

Explanation:

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volume =  \frac{mass}{density}

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The volume is

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<h3>3.16 mL</h3>

Hope this helps you

8 0
3 years ago
Plz answer the question in the picture.
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Answer:

a

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5. Balance the equation and state the limiting reagent in the following reaction:
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Answer:

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bro youre on your own after this, im tired

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3 years ago
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