Answer:
46.761g/mol
Explanation:
Given parameters:
Element = Hilarium , Hi
Isotopes: Hi- 45, Hi-46 and Hi- 48
Natural abundance of Hi-45 = 18.3%
Hi-46 = 34.5%
Hi-48 = 47.2%
Unknown:
Atomic weight of naturally occurring Hilarium = ?
Solution:
Isotopes have been studied extensively by mass spectrometry. The method is used to determine the proportion/percentage/fraction by which each of the isotopes of an element occurs in nature. The proportion is called geonormal abundance. From this we can calculate the atomic weight of an element.
We can use the expression below to find this value:
Atomic weight = m₄₅α₄₅ + m₄₆α₄₆ + m₄₈α₄₈
m is the atomic mass of each isotope and α is the abundance
Atomic weight = (45 x 
) + (46 x 
) + (48 x 
)
Atomic weight of Hi = 8.235 + 15.870 + 22.656 = 46.761g/mol
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Our solar system consists of our star, the Sun, and everything bound to it by gravity — the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, dwarf planets such as Pluto, dozens of moons and millions of asteroids, comets and meteoroids.
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Answer:
3Cu²⁺ + 2PO₄³⁻ → Cu₃(PO₄)₂ (s)
Explanation:
Double displacement reaction: A chemical reaction in which aqueous solution of two salts react to give two products by exchanging their counterions.
<u>The chemical equation for the chemical reaction between Na₃PO₄ (aq) and CuSO₄ (aq) is given as:</u>
2 Na₃PO₄ (aq) + 3 CuSO₄ (aq) → Cu₃(PO₄)₂ (s) + 3 Na₂SO₄ (aq)
<u>The full ionic equation for this chemical reaction is:</u>
6Na⁺(aq) + 2PO₄³⁻(aq) + 3Cu²⁺(aq) + 3SO₄²⁻(aq) → Cu₃(PO₄)₂ (s) + 6Na⁺(aq) + 3SO₄²⁻(aq)
<u>Therefore, the net ionic equation for this chemical reaction is:</u>
3Cu²⁺ + 2PO₄³⁻ → Cu₃(PO₄)₂ (s)
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