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nikitadnepr [17]
3 years ago
10

(e) Another student investigated the rate of a different reaction

Chemistry
1 answer:
vodka [1.7K]3 years ago
4 0

Answer:

0.07 g/s.

Explanation:

From the question given above, the following data were obtained:

Mass lost = 9.85 g

Time taken = 2 min 30 s

Mean rate =?

Next, we shall convert 2 min 30 s to seconds (s). This can be obtained as follow:

1 min = 60 s

Thus,

2 min = 2 × 60 = 120 s

Therefore,

2 min 30 s = 120 s + 30 s = 150 s

Finally, we shall determine the mean rate of the reaction. This can be obtained as illustrated below:

Mass lost = 9.85 g

Time taken = 150 s

Mean rate =?

Mean rate = mass lost / time taken

Mean rate = 9.85 / 150

Mean rate = 0.07 g/s

Therefore, the mean rate of the reaction is 0.07 g/s

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Height = 3 m

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3 years ago
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What is the concentration of an unknown Mg(OH)2 solution if it took an average of 15.4mL of
vova2212 [387]

Answer:

0.077M

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

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From the balanced equation above,

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Step 2:

Data obtained from the question.

Concentration of base Cb =...?

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Step 3:

Determination of the concentration of the base, Mg(OH)2.

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Cb = 0.077M

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7 0
3 years ago
How many liters of a 1.5 M solution can you make if you have .50 mol of KCl?
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Answer:

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Explanation:

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Simplification and result

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7 0
3 years ago
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