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melisa1 [442]
3 years ago
12

A pH increases, what happens to the hydroxide ion concentration?

Chemistry
1 answer:
Tanzania [10]3 years ago
6 0
When ph decreases the hydrogen ion concentration increases because ph = - log (H)
Likewise, the other way around is true (when hydrogen ion concentration increases, pH decreases).
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What is the average kinetic energy of 1 mole of a gas at -32 degrees Celsius? (R = 8.314 J/K-mol)
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Answer:

3.01 x 103 J

Explanation:

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3 years ago
As the movement of molecules within a substance increases, describe the change in heat of the substance. Justify your response i
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Which best defines partial pressure in a mixture of gases?
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2 years ago
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A student neutralized 16.4 milliliters of HCl by adding 12.7 milliliters of 0.620 M KOH. What was the molarity of the HCl acid?
Katen [24]
V ( HCl ) = 16.4 mL / 1000 => 0.0164 L

M( HCl) = ?

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M(KOH) = 0.620 M

Number of moles KOH:

n = M x V

n = 0.620 x 0.0127

n = 0.007874 moles of KOH

number of moles HCl :

<span>HCl + KOH = H2O + KCl
</span>
1 mole HCl ------ 1 mole KOH
<span>? mole HCl--------0.007874 moles KOH
</span>
moles HCl = 0.007874 * 1 / 1

= 0.007874 moles of HCl

M = n / V

M = 0.007874 / <span>0.0164

</span>= 0.480 M

Answer (2)

hope this helps!

4 0
3 years ago
The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg . How much energy in
-Dominant- [34]
<span>2.28 kg x 213 kJ/kg = 486 kJ = 4.86E+05 J</span>
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3 years ago
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