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2 years ago

n a precipitation reaction where calcium nitrate and sodium carbonate are the reactants, what precipitate would form?

Chemistry

1 answer:

Vladimir [108]2 years ago

6 0

Answer:

calcium carbonate precipitates from the solution when water solutions of calcium nitrate and sodium carbonate are combined, while the other product, sodium nitrate, remains dissolved. Strong precipitates are extracted from the solution. It's just a rush.

Explanation:

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2 years ago

Which of the following do water, rust, and salt have in common?

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Which element would be expected to have a similar physical and chemical properties as oxygen, and why?

soldi70 [24.7K]

Oxygen and Sulfur are in the same group.

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2 years ago

A student prepares a aqueous solution of butanoic acid . Calculate the fraction of butanoic acid that is in the dissociated form

ella [17]

Answer:

15.4%

Explanation:

If Ka = 0.54 mM = 1.51x10⁻⁵

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C₄H₈O₂ --------> C₄H₇O₂⁻ + H⁺

I 0.54x10⁻³ 0 0

E 0.54x10⁻³(1-x) 0.54x10⁻³x 0.54x10⁻³x

Recall that x is the percentage degree of dissociation

From the ICE table;

Ka = [C₄H₇O₂⁻] [ H⁺]/[C₄H₈O₂]

1.51x10⁻⁵=(0.54x10⁻³x) (0.54x10⁻³x)/ 0.54x10⁻³(1-x)

1.51x10⁻⁵ = 0.54x10⁻³x^2/1-x

1.51x10⁻⁵(1-x) = 0.54x10⁻³x^2

1.51x10⁻⁵ - 1.51x10⁻⁵x = 0.54x10⁻³x^2

Hence;

0.54x10⁻³x^2 + 1.51x10⁻⁵x - 1.51x10⁻⁵=0

x^2 + 0.028x - 0.028 = 0

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x = 0.154 or −0.182

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