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Usimov [2.4K]
2 years ago
12

A 68-gram bar of gold is cut into three equal pieces. How dose the density of each piece compare to the density of the original

gold bar?
Chemistry
1 answer:
Molodets [167]2 years ago
8 0
It is the same density
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The correct mathematical expression for finding the molar solubility (s) of calcium phosphate is
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Answer is: The molar solubility of calcium phosphate is 108s⁵ = Ksp.

<span> Balanced chemical reaction: Ca</span>₃(PO₄)₂(s) → 3Ca²⁺(aq) + 2PO₄³⁻(aq).<span>
[Ca²</span>⁺] = 3s(Ca₃(PO₄)₂) = 3s.<span>
[PO</span>₄³⁻] = 2s.<span>
Ksp = [Ca²</span>⁺]³ · [PO₄³⁻]².<span>
Ksp = (3s)³ · (2s)².
Ksp = 108s</span>⁵.

s = ⁵√(Ksp ÷ 108).

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Explanation:

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