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navik [9.2K]
3 years ago
6

PLEASE HELP!!!

Chemistry
1 answer:
ladessa [460]3 years ago
7 0

Answer:

the answer is c. [.4r]3d104324p

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The ksp of copper(ii) carbonate, cuco3, is 1.4 × 10-10. calculate the molar solubility of this compound.
mafiozo [28]
As,
                              CuCO₃    ⇆  Cu²⁺  +  CO₃²⁻
So,
                             Kc  =  [Cu²⁺] [CO₃²⁻] / CuCO₃
Or,
                             Kc (CuCO₃)  =  [Cu²⁺] [CO₃²⁻]
Or,
                             Ksp  =  [Cu²⁺] [CO₃²⁻]
As,
Ksp  = 1.4 × 10⁻¹⁰
So,
                            1.4 × 10⁻¹⁰  =  [x] [x]
Or,
                             x²  =  1.4 × 10⁻¹⁰ 
Or,
                             x  =  1.18 × 10⁻⁵ mol/L
To cahnge ito g/L,
                             x  =  1.18 × 10⁻⁵ mol/L × 123.526 g/mol

                   
         x  =  1.45 × 10⁻³ g/L
3 0
3 years ago
Fill in the blanks to complete each statement about the heating of Earth's surface.
Aleonysh [2.5K]

Earth takes in thermal energy from the Sun in a process called thermal radiation.

Sunlight strikes Earth's surface at different angles. This angle is called the angle of insolation.

<h3>What is thermal energy?</h3>

Thermal energy refers to the energy contained within a system that is responsible for its temperature.

Earth takes in thermal energy from the Sun in a process called thermal radiation.

Sunlight strikes Earth's surface at different angles. This angle is called the angle of insolation.

Learn more about thermal energy here:

brainly.com/question/11278589

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7 0
2 years ago
1. A student attempts to make a saline solution by adding salt to water. How much water did
dexar [7]

111.1 mL of water

Explanation:

Weight per volume concentration (w/v %) is defined as

weight per volume concentration = (mass of solute (g) / volume of solution (mL)) × 100

volume of solution = (mass of solute × 100) / weight per volume concentration

volume of solution = (1 × 100) / 0.9 = 111.1 mL

volume of water = volume of solution = 111.1 mL

Learn more about:

weight per volume concentration

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8 0
3 years ago
What is the purpose of the stairstep pattern on the periodic table of the elements?
Mamont248 [21]

Answer: The bold staircase in the periodic table allows us to classify which elements are metalloids.

Explanation: Additionally, it acts like a "divider" that allows us to properly distinguish the metals from the non-metals in the periodic table.

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7 0
3 years ago
All energy originates from the ________.
exis [7]

Answer:

Sun is the answer!!!!!!

5 0
3 years ago
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