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I am Lyosha [343]
3 years ago
11

????????????????????????????

Chemistry
2 answers:
aliina [53]3 years ago
8 0

Answer:

<h2>The answer you are looking for is (B)</h2>

Explanation:

hope this helps

<h2>please mark as brainliest!!!</h2>
AleksandrR [38]3 years ago
6 0

Answer:

B

Explanation:

A doesn't make sense for this question, so you can mark that one out. When talking about someones weight, it's talking about how much gravity is acting on that person. Just like how we have different weights on different planets. It's because of gravity.

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2 years ago
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Ksju [112]
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2 years ago
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It is desired to produce 2.25 grams of dichloromethane (CH2Cl2) by the following reaction. If the percent yield of dichlorometha
Allushta [10]

Answer:- 3.12 g carbon tetrachloride are needed.

Solution:- The balanced equation is:

CH_4+CCl_4\rightarrow 2CH_2Cl_2

From given actual yield and percent yield we will calculate the theoretical yield that would be further used to calculate the grams of carbon tetrachloride.

percent yield formula is:

percent yield = (\frac{actual}{theoretical})100

65.5=(\frac{2.25}{theoretical})100

theoretical=(\frac{2.25(100)}{65.5})

theoretical = 3.44 g

From balanced equation, there is 2:1 mol ratio between dichloethane and carbon tetrachloride.

Molar mass of dichloroethane is 84.93 gram per mol and molar mass of carbon tetrachloride is 153.82 gram per mol.

3.44gCH_2Cl_2(\frac{1molCH_2Cl_2}{84.93gCH_2Cl_2})(\frac{1molCCl_4}{2molCH_2Cl_2})(\frac{153.82gCCl_4}{1molCCl_4})

= 3.12gCCl_4

So, 3.12 grams of carbon tetrachloride are needed to be reacted.

8 0
3 years ago
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