Q. What is the weight of a 10 kg object on the surface of Earth and the moon?
The weight is directly proportional to the gravitational force of any area. The gravitational force on moon is one sixth of the gravitational force on earth. Hence if a body is weighting 10 kilo on moon, its weight on the earth will be 60 kilograms. Hence the correct answer to the given question is 60 kilograms.
Q. What is the weight of an object of 10 kg on Earth’s mass and weight on the moon if acceleration due to gravity on the moon in 1/6th on earth G on Earth 9.8 M s2?
Explanation: A mass of 10⋅kg on Earth will also have a mass of 10⋅kg on the moon. These masses will have different weights; the weight on the Moon will be 16 the weight on Earth.
Q. What is the mass and weight of a 10 kg object on the moon where the force of gravity is 1/6 than that of the Earth’s?
Answer: Weight of a 10-kg object on moon is 16.33 N.
Q. What is the mass of 10 kilograms?
A Gram is a unit of Mass in the metric System. It has the symbol g. A Gram has 0 Kilograms….Gram.
| Kilograms [kg] | Grams [g] |
|---|---|
| 1 | 1000 |
| 10 | 10000 |
| 20 | 20000 |
| 50 | 50000 |
Q. What is exact mass?
Exact mass: In mass spectrometry, an m/z measured or calculated to several decimal places (usually four).
Q. What is nominal mass?
According to IUPAC recommendations, the nominal mass is defined as the “mass of a molecular ion or molecule calculated using the isotope mass of the most abundant constituent element isotope of each element rounded to the nearest integer value and multiplied by the number of atoms of each element” (IUPAC …
Q. Is atomic mass an exact number?
Atomic mass is based on a relative scale and the mass of 12C (carbon twelve) is defined as 12 amu; so, this is an exact number. All the masses of the elements are determined relative to 12C. Average Atomic Mass. Since many elements have a number of isotopes, chemists use average atomic mass.
Q. How do you find the exact isotopic mass?
For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.
Q. How do you calculate Monoisotopic mass?
Monoisotopic mass: Exact mass of an ion or molecule calculated using the mass of the most abundant isotope of each element. Example: monoisotopic mass of H2O = (2 × 1.007825 + 1 × 15.994915) u = 18.010565 u.
Q. Is atomic mass equal to atomic weight?
Atomic weight is the weighted average of the naturally occurring isotopes. So again, the mnemonic for memorizing the difference between atomic mass and atomic weight is: atomic mass is the mass of an atom, whereas atomic weight is the weighted average of the naturally occurring isotopes.
Q. Are lanthanides rare?
Actually, only those elements with atomic numbers 58–71 are lanthanides. In comparison with many other elements, however, the rare earths are not really rare, except for promethium, which has only radioactive isotopes. Yttrium, lanthanum, cerium, and neodymium are all more abundant than lead in the earth’s crust.
Q. What are the uses of lanthanides?
Lanthanides have been widely used as alloys to impart strength and hardness to metals. The main lanthanide used for this purpose is cerium, mixed with small amounts of lanthanum, neodymium, and praseodymium. These metals are also widely used in the petroleum industry for refining crude oil into gasoline products.
Q. Are lanthanides important?
The lanthanides have a variety of nuclear applications. Because they absorb neutrons, they have been used in control rods used to regulate nuclear reactors. They have also been used as shielding materials, and as structural components in reactors. Some lanthanides have unusual magnetic properties.
