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juin [17]
3 years ago
13

Classify each of the following aqueous solutions as a nonelectrolyte, weak electrolyte, or strong electrolyte.

Chemistry
1 answer:
OLEGan [10]3 years ago
6 0
<h3>Answer:</h3>

a) LiClO4 - Strong electrolyte

b) HClO -Weak electrolyte

c) CH3CH2CH2OH - Non-electrolyte

d) HClO3 - Strong electrolyte

e) CuSO4 -strong electrolyte

f) C12H22O11-Non-electrolyte

<h3>Explanation:</h3>
  • An electrolyte is a substance in an aqueous or molten form which is decomposed by passing an electric current through it. Electrolytes ionize to ions which are responsible for the conduction of electric charge.
  • Non-electrolytes are substances that do not ionize into cations and anions and thus do not conduct. They include molecular compounds such as gases.
  • Electrolytes may be weak or strong depending on the level of ionization.
  • Weak electrolytes are those that undergo partial ionization while strong electrolytes completely ionize.
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A 45.0 g block of an unknown metal is heated in a hot water bath to 100.0°c. when the block is placed in an insulated vessel con
professor190 [17]
Let's apply the principle of conservation of energy.

Heat of metal = Heat of water
mCmetalΔT = mCwaterΔT

Applying the given values,

(45 g)(Cmetal)(100 - 28 °C) = (130 g)(4.18 J/g-°C)(28 - 25 °C)
Solving for Cmetal,
<em>Cmetal = 0.503 J/g°C

Therefore, the heat capacity of the unknown metal is 0.503 J/g</em>
°C.
5 0
4 years ago
A gas occupies a volume of 140 mL at 35.0°C and 697 mm Hg. What is the volume of the gas at STP?
Harlamova29_29 [7]

Answer:

113.80 mL

Explanation:

Given that:

Volume V_1 = 140 mL

Temperature T_1 = 35.0^0C

= (273 + 35) = 308 \ K

Pressure P_1 = 697 mmHg

At standard temperature and pressure;

Temperature T_2 = 273 K

PressureP_2 = 760 mmHg

Using the formula for a combined gas law:

\dfrac{P_1V_1}{T_1} = \dfrac{P_2V_2}{T_2}

V_2 = \dfrac{P_1V_1T_2}{T_1P_2}

V_2 = \dfrac{697 \ mmHg \times 140 \ mL \times 273 \ K }{308 \ K \times 760  \ mmHg}

\mathbf{V_2 = 113.80  \ mL}

6 0
3 years ago
6.(a) State any two ways by which water gets polluted.
Eddi Din [679]
Chemical waste from factories
5 0
3 years ago
What is the answer? Please
kenny6666 [7]

Answer:

Cell

Explanation:

I just passed this unit a month ago.

6 0
3 years ago
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7. If the atomic number of an element is 6 and its mass number is 14, how many
Jet001 [13]

Answer:

14-6

8

so 8 is the answer because atomic number is number of protons and atomic mass is sum of protons and neutrons so to find the number of neutrons we will subtract proton number with the atomic mass.

Thanks

3 0
3 years ago
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