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DENIUS [597]
3 years ago
8

Someone can help me with the question 3, please

Chemistry
1 answer:
pav-90 [236]3 years ago
5 0
Answer ————
60.8 g ammonia
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Calculate the energy released in the following fusion reaction. The masses of the isotopes are: 14N (14.00307 amu), 32S (31.9720
Sergio [31]

Here is the complete question:

Calculate the energy released in the following fusion reaction. The masses of the isotopes are: 14N (14.00307 amu), 32S (31.97207 amu), 12C (12.00000 amu), and 6Li (6.01512 amu).

¹⁴N + ¹²C + ⁶Li ⇒   ³²S

Answer:

68.7372 × 10⁻¹⁶ kJ

Explanation:

Given that the reaction;  ¹⁴N + ¹²C + ⁶Li ⇒   ³²S

To calculate for the energy released; we need to determine the mass defect  (md) of the reaction and which is given as :

Mass defect (md) = [mass of reactants] -[mass of product]

Mass defect (md) = [ ¹⁴N + ¹²C + ⁶Li ] - [ ³²S ]

Mass defect (md) = [ 14.00307 + 12.00000 + 6.01512 ] amu - [ 31.97207 ] amu

Mass defect (md) = 32.01819 - 31.97207

Mass defect (md) = 0.04612 amu

Having gotten the value of our Mass defect (md);  = 0.04612 amu

We know that if 1 amu ⇒ 931.5 Mev of energy

∴ 0.04612 amu = 0.04612 × 931.5 Mev of energy

                         = 42.96078  Mev of energy

where M = million = 10⁶

1 ev = 1.6 × 10⁻¹⁹ Joules

∴  42.96078  Mev of energy = 42.96078 × 10⁶ ×  1.6 × 10⁻¹⁹ J

                                               =  68.7372 × 10⁻¹³ J

                                              =  68.7372 × 10⁻¹⁶ kJ

Hence; the  energy released in the above  fusion reaction = 68.7372 × 10⁻¹⁶ kJ.

3 0
4 years ago
Rick is creating a love potion for Morty. To make the potion, Rick's needs 51 mL of a mixture solution where 40% is carbonated w
Deffense [45]

Answer:

The amount of the first solution rick needs to mix together to create the love portion is 8.5 mL

Explanation:

So as to make the love potion, we have;

The percentage of carbonated water in the love portion = 40%

The percentage of green tea in the first solution = 65%

The percentage of carbonated water in the first solution = 15%

The percentage of whole milk in the first solution = 20%

The percentage of orange juice in the second solution = 17%

The percentage of lemonade in the second solution = 38%

The percentage of carbonated water in the second solution = 45%

Let 'x' represent the volume in mL of the first solution added to make the love portion, and let 'y' be the volume in mL of the second solution added to make the love portion, we have;

x + y = 51...(1)

0.15·x + 0.45·y = 0.40×51 = 20.4

0.15·x + 0.45·y = 20.4...(2)

Solving the system of simultaneous equation by making 'y' the subject of each of the equation gives;

For equation (1)

y = 51 - x

For equation (2)

y = 20.4/0.45 - (0.15/0.45)·x = 136 - 3·x

y = 136/3 - (1/3)·x

Equating the two equations of 'y', gives;

51 - x = 136/3 - (1/3)·x

51 - 136/3 = x - (1/3)·x

17/3 = (2/3)·x

(2/3)·x = 17/3

x = (3/2) × (17/3) = 17/2 = 8.5

x = 8.5

y = 51 - x = 42.5

y = 42.5

Therefore, the amount of the first solution rick needs to mix together to create the love portion, x = 8.5 mL

8 0
3 years ago
Think about water and how it rolls up on the beach. Think of all its qualities. Is it alive according to the characteristics of
gulaghasi [49]
Water is not alive because it has no living organisms.
6 0
3 years ago
Will mark brainliest!
aniked [119]
The decoders of the DNA messege
4 0
4 years ago
Science is based primarily on peoples opinions and views of the subject matter.
kvv77 [185]

Answer:

False

Explanation:

Science is not based on primarily on peoples opinions and views of the subject matter whereas science is based on empirical observations and research for its validity.

<u>Science aims to find answers to human questions related to the natural world through their research observation and experiments. Scientists and researchers provide valid proof of human questions so that people can trust them.</u>

Science can change people's opinions regarding the natural world with valid proof and observational theories but science is not based on people's opinion.

Hence, the given statement is "false".

7 0
3 years ago
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