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dezoksy [38]
3 years ago
14

Write a chemical equation that shows the release of hydroxide ions as each of these bases dissolves in water.

Chemistry
1 answer:
Zarrin [17]3 years ago
5 0
KOH -------> K+ OH-
Ba(OH)2 ------> Ba+2. 2OH-
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Even though lead is toxic, lead compounds were used in ancient times as white pigments in cosmetics. What is the percentage of l
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<u>Answer:</u> The mass percent of lead in lead (IV) carbonate is 63.32 %

<u>Explanation:</u>

The given chemical formula of lead (IV) carbonate is Pb(CO_3)_2

To calculate the mass percentage of lead in lead (IV) carbonate, we use the equation:

\text{Mass percent of lead}=\frac{\text{Mass of lead}}{\text{Mass of lead (IV) carbonate}}\times 100

Mass of lead = (1 × 207.2) = 207.2 g

Mass of lead (IV) carbonate = [(1 × 207.2) + (2 × 12) + (6 × 16)] = 327.2 g

Putting values in above equation, we get:

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Hence, the mass percent of lead in lead (IV) carbonate is 63.32 %

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