1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mrs_skeptik [129]
3 years ago
12

An atom of 125Sn has a mass of 124.907785 amu. Calculate the binding energy in MeV per atom. Use the masses: mass of 1H atom = 1

.007825 amu mass of a neutron = 1.008665 amu 1 amu = 931.5 MeV Give your answer to 3 significant figures and DO NOT use E notation. No charity points will be awarded.......
Chemistry
1 answer:
Ksenya-84 [330]3 years ago
3 0

Answer:

1.06×10³ MeV/atom

Explanation:

Atomic number : It is defined as the number of electrons or number of protons present in a neutral atom.

Also, atomic number of Sn = 5 0

Thus, the number of protons = 50

Mass number is the number of the entities present in the nucleus which is the equal to the sum of the number of protons and electrons.

Mass number = Number of protons + Number of neutrons

125 =  50 + Number of neutrons

Number of neutrons = 75

Mass of neutron = 1.008665 amu

Mass of proton = 1.007825 amu

Calculated mass = Number of protons*Mass of proton + Number of neutrons*Mass of neutron

Thus,  

Calculated mass = (50*1.007825 + 75*1.008665) amu = 126.041125 amu

Given mass = 124.907785 amu

<u>Mass defect = Δm = |126.041125 - 124.907785| amu = 1.13334 amu </u>

The conversion of amu to MeV is shown below as:-

1 amu = 931.5 MeV

<u>So, Energy = 1.13334*931.5 MeV/atom = 1.06×10³ MeV/atom</u>

You might be interested in
Would aluminum be as useful as food wrapping if it had a much lower melting point? Explain your answer.
Salsk061 [2.6K]

The correct answers are as follows:

1. Aluminium will not be useful as food wrapping if it has a much lower melting point.

Aluminum is a metallic element that is malleable and soft, thus, it is easy to beat it into thin sheet, which are used to package food. The thin sheet is called aluminium foil. Aluminum is useful as a food wrapping because it has high temperature and thus, it does not react with food (the hotness of the packaged food is not capable of melting the metal). If the melting point of aluminium is lower, this implies that little temperature, such as the one from hot food will be able to melt aluminum foil, thus allowing the food to be contaminated with the metal.

2. When bleach react with fabric dye chemical change occur in the fabric.

The major element in bleach is chlorine. When laundry bleach is added to a fabric, the chlorine component of the bleach will react with the fabric dye and cause a colour change in the fabric. This type of change is called chemical change, because the original colour of the fabric can not be recovered.

3. Every substance has specific properties, which can be used to identify it. Two of such specific properties are melting point and boiling point. Melting point refers to a specific temperature at which a solid substance will melt while boiling point refers to a specific temperature at which a liquid substance will boil and turn to steam.

Water for instance has a boiling point of 100 degree Celsius. To find out if an unknown substance is water, one can determine the boiling point of such liquid. A boiling point of 100 degree Celsius will strongly signify that the substance is probably water. The same thing applies to melting point. If the specific boiling and melting point of substances are known, then they can be used to identify them.


4 0
3 years ago
How is this equation read? <br> 4Na (1) +Mn(SO 4 ) 2 (aq) Mn (3) +2Na 2 SO
Trava [24]
The answer is A, do you want me to explain it? It’s pretty simple, you just need to follow all the signs in brackets and match them in those in the answer
7 0
3 years ago
Read 2 more answers
What should the temperature of the detergent water be in a 3 compartment sink
kumpel [21]
It should be At least 110°F
3 0
3 years ago
Read 2 more answers
Can some one please help me with this organic chemistry question?
const2013 [10]
I think it is gauche.

I know the angle between two atoms in equatorial positions is 60 degrees. and 60 degrees is seen in gauche conformations.
4 0
3 years ago
the pressure of a 250-ml sample of gas is 105 kpa. what would br the pressure in Pascal if the volume were increased to 375 ml
juin [17]
After a good long amount of research, I found that the scientific answer to this question would be a big ol’ dink
8 0
3 years ago
Other questions:
  • Which of the following is a unit of volume of liquids? (4 points) Gram Liters Liters per cubic gram Gram per cubic centimeter
    8·2 answers
  • Which mixture can be separated through filtration because one the substances is insoluble in water?
    9·1 answer
  • An excess of hydrogen ions in the body fluids can have disastrous results because
    13·2 answers
  • 3 6. 9 TIME REMAINING 57:16 A substance is made up of slow-moving particles that have very little space between them. Based on t
    10·1 answer
  • What effect does an increase in products have on the reaction rate of a mixture at equilibrium? A. The forward reaction rate inc
    8·1 answer
  • Dichloroethane, a compound that is often used for dry cleaning, contains carbon, hydrogen, and chlorine. It has a molar mass of
    15·1 answer
  • PLS HELP S O S *will give brainliest*
    14·1 answer
  • Hich of the following best describes a person doing science?
    13·2 answers
  • Josefina and Raul were comparing how sound moves through various mediums and how charge moves through conducting wires. They per
    5·1 answer
  • You just guzzled 10 liters of fizzy bubble drink, how much drink would that be in milliliters?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!