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ladessa [460]
3 years ago
15

What is the difference between 24-karat gold and gold used for normal jewelry?

Chemistry
2 answers:
deff fn [24]3 years ago
8 0

Answer: 24k gold has a higher purity making it softer and malleable but its used in jewelry as 14k and 18k gold of lesser purity

Explanation:

erastovalidia [21]3 years ago
4 0

Explanation:

A 24 Karat gold is 100 per cent pure gold and does not have any other metal mixed. ... The 24 karat gold is more expensive than 22 or 18 Karat gold. It is soft and pliable and that's why not used in making regular forms of jewellery

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marin [14]

The concentration of [H3O⁺]=2.86 x 10⁻⁶ M

<h3>Further explanation</h3>

In general, the weak acid ionization reaction  

HA (aq) ---> H⁺ (aq) + A⁻ (aq)  

Ka's value  

\large {\boxed {\bold {Ka \: = \: \frac {[H ^ +] [A ^ -]} {[HA]}}}}

Reaction

HC₂H₃O₂ (aq) + H₂O (l) ⇔  (aq) + H₃O⁺ (aq) Ka = 1.8 x 10⁻⁵

\tt Ka=\dfrac{[C_2H_3O^{2-}[H_3O^+]]}{[HC_2H_3O_2]}}\\\\1.8\times 10^{-5}=\dfrac{0.22\times [H_3O^+]}{0.035}

[H₃O⁺]=2.86 x 10⁻⁶ M

5 0
3 years ago
How many grams of hydrogen reacts with 32 g of oxygen to produce 34 g of hydrogen peroxide
nordsb [41]

Answer:

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Using molar masses:

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Owing to the arrangement of ions in NaCl, the structure has a high melting point and crystalline structure.

Ionic compounds are know to have a crystalline structure. This is because the ions in the compound are arranged into a crystal lattice. A crystal lattice gives a regular repeating structure of ions in the crystal.

As a result of this order in the crystal, the resultant sodium chloride structure has a high melting point and crystalline structure.

Learn more: brainly.com/question/17638582

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C is the correct anwser 
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