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MissTica
3 years ago
14

Calculate the defect of helium nucleus​

Chemistry
1 answer:
Tcecarenko [31]3 years ago
3 0

1 amu=1.67×10  

−27

kg

Using this and Einsteins relation, we get the energy equivalent to the rest mass as:

E=mc  

2

=(1.67×10  

−27

×0.0304)×(3×10  

8

)  

2

=4.569×10  

−12

J

Converting this energy in electron volts.

E=  

1.6×10  

−19

 

4.569×10  

−12

 

​  

=28MeV

This is per nucleon of Helium. One Helium nucleus has four nucleons.

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Answer:

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Explanation:

We use the formula

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1.00e-14 = (H30 +) x 2.42e-7

(H30 +) = 1.00e-14 / 2.42e-7 = 4.13e-8M

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4 years ago
The pot shown in the picture is made of two different metals. Why is the handle made of a different metal than the rest of the p
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8 0
4 years ago
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A sample of neon occupies a volume of 461 mL at 1 atm and 273 K. What will be the volume of the neon when the pressure is reduce
Softa [21]

Answer:

0.501 L

Explanation:

To solve this problem we will use Boyle,s Law. According to this law "The volume of given amount of gas is inversely proportional to applied pressure at constant temperature".

                           V∝ 1/P

                           V= K/P

                            VP=K

Here the K is proportionality constant.

so,

             P1V1 = P2V2

P= pressure

V= volume

Given data:

P1= 1 atm

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To solve this problem we have to convert the mL into L first.

1 L = 1000 mL

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Now we will put the values in the equation,

P1V1 = P2V2

V2= P1V1/ P2

V2= 1 atm × 0.461 L / 0.92 atm

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4 0
4 years ago
According to daltons atomic theory all Adams of the same element are identical today this theory is directly refuted by the disc
Vlad [161]

Answer:

Isotopes are variations of the same atom. They have the same number of protons but have a different number of neutrons. Isotopes of the same element are not identical to each other because they have varying mass numbers. Some isotopes are radioactive because their nucleus is unstable and some isotopes are not radioactive.

5 0
3 years ago
How many electrons are in the p sublevel?​
mixas84 [53]

Answer:

6

Explanation:

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4 0
3 years ago
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