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alina1380 [7]
2 years ago
4

A compound, C15H24, is reacted with excess hydrogen using a metal catalyst. One equivalent of the compound consumed three equiva

lents of hydrogen. How many rings didthe original compound have?
Chemistry
1 answer:
Deffense [45]2 years ago
4 0

Answer:

1 ring

Explanation:

The molecular formula of a saturated alkane with 12 carbon atoms is C_{13}H_{32} while that of a cyclic alkane with 12 carbon atoms is C_{13}H_{30}. Thus, if six hydrogen atoms are removed from the compound, this would translate into a three double bonds. Therefore, the number of rings in the original compound would be one (1).

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A 50-gram sample has a half-life of 12 days. How much material will remain after 12 days?
Elis [28]
<span>A 50-gram sample with a half-life of 12 days will have a remaining mass of 25 grams after its 12-day half-life. Every cycle of a half-life, the sample will lose half of its mass, so if the half-life, itself, is 12 days and the time period passing is 12 days, one half-life has passed and the material will be halved.</span>
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2 years ago
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To maximize the yield in a certain manufacturing process, a solution of a weak monoprotic acid that has a concentration between
stira [4]

Answer: C 115 ml

Explanation:

If you have a solution of a monoprotic acid, it means that it has the form HA (just one Hydrigen atom). Therefore, one molecule of acid is going to react with just one molecule of  NaOH.

So, if you have a solution of 100 ml of 0,2 HA acid, it is going to react with a 100 ml of 0,2 M NaOH solution. Beacause we know that the acid can be a little more concentrated than 0,2 M (0,2-0,3), it probably needs a little more than 100 ml of NaOH to react.  So, the answer is C.

in 100 ml of 0,2M acid you can find 0,002 mol of HA

in 100 ml of 0,3 M acid you can find 0,003 mol of HA

in 100 ml of 0,2 M NaOH you can find 0,002 mol of NaOH

the answer can not be 200 because in 200 ml of 0,2 M NaOH there are 0,004 mol of NaOH, which is more than 0,003 mol.

0 0
2 years ago
What is the advantage of having large vertebrae at the base of the vertebral column?
WINSTONCH [101]
The advantage of having large vertebrae at the base of the vertebral column is having stability in terms of the center of gravity of the animal. If the animal has a large vertebrae, then it has an excellent balance and strength. 
3 0
2 years ago
What is the formal charge on the nitrogen in hydroxylamine, h2noh?
andrew11 [14]
<h3>Answer:</h3>

             Formal Charge on Nitrogen is "Zero".

<h3>Explanation:</h3>

Formal Charge on an atom in molecules is calculated using following formula;

Formal Charge  =  [# of Valence e⁻s] - [e⁻s in lone pairs + 1/2 # of Bonding e⁻s]

As shown in attached picture of Hydroxylamine, Nitrogen atom is containing two electrons in one lone pair of electrons and six electrons in three single bonds with two hydrogen and one oxygen atom respectively.

Hence,

                                  Formal Charge  =  [5] - [2 + 6/2]

                                  Formal Charge  =  [5] - [2 + 3]

                                  Formal Charge  =  5 - 5

                                  Formal Charge  =  0    (zero)

Hence, the formal charge on nitrogen atom in hydroxylamine is zero.

5 0
2 years ago
Janine is trying to separate some ethanol from water. Which method should she use does anyone know this
GuDViN [60]

To separate some ethanol from water, Jane needs to use the method of simple distillation.

Simple distillation is a separation method in which two liquids can be separated from each other based on differences in boiling point.

Since water has a higher boiling point than ethanol, ethanol is collected first as the distillation proceeds.

Learn more:  brainly.com/question/2193327

5 0
2 years ago
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