Which chemical has the least solubility at 80 c

Chemistry

1 answer:

Vinil7 [7]2 years ago

6 0

Answer:

But since the solubility product constant for each compound is provided, their relative solubility can be ranked from highest to lowest. Depending on the ranking above, it is evident that aluminum hydroxide Al(OH)3 A l ( O H ) 3 has the lowest solubility at 25 Celsius degreesAs temperature increases, its solubility increases as well. Notice, however, that it does not increase significantly. In fact, you can expect to be able to dissolve no more than 40 g of sodium chloride per 100 g of water at 80∘C

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Strike441 [17]

Answer:

$Fe_6O_9$

Explanation:

Hello there!

In this case, since these problems about formulas, firstly require the determination of the empirical formula, assuming that the given percentages are masses, we can calculate the moles and mole ratio of oxygen to iron as shown below:

$n_{Fe}=70/55.85=1.25\\\\n_O=30/16=1.875$

In such a way, by rounding to the first whole number we multiply by 8 and divide by 5 to obtain:

$Fe_{2}O_{3}$

Whose molar mass is 159.69 g/mol and the mole ratio of the molecular to the empirical formula is:

479.1/159.69=3

Therefore, the molecular formulais:

$Fe_6O_9$

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2 years ago

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natima [27]

C) 10 grams

Explanation:

Potassium chlorate (KCIO₃) have a solubility in water at 70 °C of 30 grams in 100 grams of water.

If our solution have already 20 grams of potassium chlorate salt dissolved that means we need another 10 grams of potassium chlorate to reach the saturation point.

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Potassium chlorate solubility in water

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How can atoms be neutral if they contain charged particles?

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