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andrey2020 [161]
2 years ago
11

How many carbon atoms are represented by the model below? A. 12 B. 5 C. 4 D. 6 ​

Chemistry
2 answers:
Papessa [141]2 years ago
5 0
I think it’s d sorry if I didn’t help
solong [7]2 years ago
4 0

Answer:

D. 6

Explanation:

Each pointy end represents 1 carbon. So in total we have six carbons.

The name of this organic compound is hexane.

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The region where an electron is most likely to be located is known as the electron cloud.
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Solid added to liquid and the solid floats down to bottom of container physical or chemical change?
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What was the old percentages of copper to zinc before 1983?
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7 0
3 years ago
A person’s blood alcohol (C2H5OH) level can be determined by titrating a sample of blood plasma
Elanso [62]

Answer:

0.17%

Explanation:

With the equation:

2Cr2O7 2- + C2H5OH + H2O --> 4Cr3+ + 2CO2 + 11H2O

We can assume that every mole of ethanol needs 2 moles of Dichromate to react.

So if in 1L we have 0.05961 moles of dichromate we can discover how many moles we have in 35.46mL

1000 mL - 0.05962 moles

35.46 mL - x

x = \frac{0.05962 * 35.46}{1000}

x = 2,11* 10^-3 moles

As we said earlier, 1 mole of ethanol needs 2 mole of dichromate, so in the solution we have 1,055*10^-3 moles of ethanol. We can discover the mass of ethanol present in the solution.

1 mole - 46g

1.055*10^-3 - y

y = 46 * 1.055*10^-3

y = 0.048 g

To discover the percent of alchol we can use a simple relation

28 g - 100%

0.048 - z

z = \frac{0.048 * 100}{28}

z = 0.17%

6 0
3 years ago
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