Calculate the mass in grams of a sample of Americium containing six atoms
Answers
Answer: grams
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number of particles. and weighs equal to the molecular mass.
To calculate the moles, we use the equation:
1 mole of Americium weighs = 243 g
Thus of Americium weigh=
Thus the mass mass in grams of a sample of Americium containing six atoms is
The mass (in grams) of the sample of Americium containing six atoms is 2.42×10⁻²¹ grams
How to determine the mass of Americium containing six atoms?
First, we shall obtain the mole of americium that contains six atoms. This is illustrated below:
From Avogadro's hypothesis,
6.022×10²³ atoms = 1 mole of americium
Therefore, we can say that
6 atoms = 6 / 6.022×10²³
= 9.96×10⁻²⁴ mole of americium
Finally, we shall determine the mass (in grams) of the americium. Details below:
- Mole of americium = 255163.41 moles
- Molar mass of americium = 243 g/mol
- Mass of americium = ?
Mass of americium = Mole × molar mass
= 9.96×10⁻²⁴ × 243
= 2.42×10⁻²¹ grams
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The rusting of iron is an instance of a chemical change that takes a long time to occur.
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Rust is an iron oxide, which is a typically reddish-brown oxide formed by the catalytic reaction of iron and oxygen in the presence of water or air moisture.
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Answers
Answer:
1.54x10^24
Explanation:
To convert moles to molecules, multiply the number of moles by Avagadro's number (6.02x10^23).
2.56mol × 6.02x10^23 = 1.54x10^24
(2) a greater magnitude and the opposite sign
(3) the same magnitude and the same sign
(4) the same magnitude and the opposite sign
Answers
Justification:
1) Electrons are negative particles thar are around the nucleus of the atom (in regions called orbitals).
2) Protons are positive particles that are inside the nuclus of the atom.
3) The nucleus of the atom has the same number of protons as electrons are in the orbitals of the atom.
4) The atoms are neutral (neither positive nor negative) because there are the same number of electrons and protons and their charge are of the same magnitude but different sign: (+) + (-) = 0: positive + negative = neutral.
The charge of a proton and the charge of all electron has (4) the same magnitude and the opposite sign
Further explanation
Inside the atom consists of a nucleus containing 3 basic particles namely protons and neutrons, while electrons circulate the nucleus on a particular path so that electrons are not attracted to the nucleus.
The charge of these three atomic particles is based on the Rutherford experiment. Rutherford experimented with firing alpha rays on a thin gold plate. From this experiment it was found that:
- 1. Most alpha rays are passed through the gold plate, so it is concluded that most of the space in the atom has empty space
- 2. A small number of alpha particles deflected shows there are positively charged particles inside the atom
(at this time these particles are called protons located in the atomic nucleus)
From here comes the Rutherford atomic model which states that atoms consist of positively charged particles (protons) and negatively charged electrons around the nucleus.
The charge of 1 proton is equal to a charge of 1 electron, but the sign is different.
The proton is positively charged (+1), the electron is negatively charged (-1). and neutrons not charged (neutral)
Charge of 1 electron = e = -1.66.10⁻¹⁹ coulomb
Whereas the neutron charge = 0
Learn more
subatomic particles in an atom
the three particles of an atom
neutrons
the mass, charge, and location of protons, neutrons, and electrons in atoms brainly.com/question/3294412
Keywords: protons, neutrons, electrons, subatomic particles, coulomb
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Answer: I think they named it RESILIENCE to point out that it should be resilient to harsh conditions and that it would be able to push through with little damage. when I hear the word resilience I think of strong able to push through. I think of myself of resilient because _________________. Naming the space craft RESILIENCE is smart because the astronauts will know they are safe when they launch.
Explanation:
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Bronze is comprised of copper and tin.
Bronze consists of Copper & Tin
Brass consists of Copper & Zinc.
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