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Scilla [17]
3 years ago
6

Which substance produces hydroxide ions in solution?

Chemistry
1 answer:
Olegator [25]3 years ago
8 0

Answer:

An Arrhenius Base

Explanation:

The definition of this is a base that is a hydroxide ion donor.

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What is the value for (delta)G at 1000 K if (delta)H = -220 kJ/mol and (delta)S = -0.05 kJ/(molK)?
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The system is isothermal, so we use the formula:
(delta)G = (delta)H - T (delta) S

Plugging in the given values:
(delta)G = -220 kJ/ mol - (1000K) (-0.05 kJ/mol K)
(delta)G = -170 kJ/mol

If we take a basis of 1 mol, the answer is
D. -170 kJ 
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PSYCHO15rus [73]

[H_{3}O^{+}] = 0.00770 M

The equilibrium equation representing the dissociation of FCH_{2}COOH

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Let the initial concentration of acid be x and change y

So y = [H_{3}O^{+}] =[FCH_{2}COO^{-}] = 0.00770 M

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K_{a} = \frac{(0.00770 M)(0.00770 M)}{x - 0.00770}

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