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A pile of 108 identical books has a mass of 30 kg Find the mass of 150 books and the number of books that has a mass of 29 kg?
Wiki User
∙ 14y ago
30 kg / 108 = 0.27777777778 kg per book.
So for 150 books: 150 * 0.27777777778 kg = 41.666666667 kg.
And for 29kg of books: 29 / 0.27777777778 kg = 104.4 books.
Wiki User
∙ 14y ago
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Why is the atomic mass number not a whole number?
We can find Atomic Mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
What is the relationship btw atomic mass and atomic mass number?
We can find atomic mass and mass number in chemical elements. Atomic mass is about weight of the atom. Mass number is about total of neutrons and protons.
Is avogadro's number the same as molar mass?
no youre thinking of molar mass and atomic weight although you use avogadro's number to find molar mass
How do you find out the atomic mass of an element?
On the periodic table it is the number on the bottom of the element.If you know the amount of neutrons you can add it to the number of protons to find the atomic mass NUMBER, which is a good approximate of the atomic mass.Potassium (isotope 39), 19K(39), has 19 protons and 20 neutrons19 + 20 = 39 atomic mass NUMBER, its atomic mass is 39.10 a.m.u.
Which of Jhon Daltons statements about the atom was proven false because of the discovery of isotopes?
Dalton said that all atoms of one element are identical. they are chemically identical but not identical in mass. he did not know of isotopes, which are chemically identical atoms with different numbers of neutral neutrons. ex: all carbon atoms act the same chemically but some mass at 12, others at 14.
Which process produces a large number of identical products?
Mass production
What isotopes of uncharded elements have different numbers?
The atomic number of the isotopes of an element is identical; the mass number is different.
How do you find out the mass number?
Mass number = Number of protons + number of neutrons
How do you you find the mass number of an atom?
To find the mass number of an atom, you add together the number of protons and neutrons in the nucleus of the atom. The atomic mass listed in the periodic table is the weighted average of the mass numbers of all isotopes of that element.
What is one of two or more species of atom having an identical atomic number but differing in mass number called?
Isotope
How do you find out mass number of an element?
Mass number = Number of Protons + Number of Neutrons
Why can you subtract the atomic number from the atomic mass and get the number of neutrons?
Not the atomic mass but the mass number (of course, these values are similar - not identical).The mass number is the sum between the number of protons and the number of neutrons. As a consequence:Number of neutrons for an isotope = Mass number - Number of protonsThe number of protons is equal to the atomic number.
What process produces a large number of identical products?
Usually, large numbers of identical products are made on a production line or assembly line.
How do you find the amount of neutrongs when you have its mass number?
Number of neutrons = Mass number - Number of protons
Identical atomic number but different mass?
I'm assuming you ask about the situation when isotopes has the same atomic number but different masses; this is normal because the number of neutrons in the isotopes of the same element is variable. But the number of protons (identical to atomic number) remain constant.
How do you find the number of neutrons when given a mass number?
Number of neutrons = Mass number - Number of protons
What are identical nuclei?
Identical nuclei refer to two or more nuclei that have the same number of protons and neutrons. They have the same mass number and atomic number, indicating that they belong to the same element. Identical nuclei have the same nuclear properties and behave similarly in nuclear reactions and processes.
