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natita [175]
3 years ago
12

Carbonic acid is an important agent involved in rock and mineral dissolution. How is carbonic acid formed?

Chemistry
1 answer:
Vitek1552 [10]3 years ago
6 0

Answer:

Carbonic acid a type of weak acid formed from the dissolving of carbon dioxide in water.

Explanation:

The chemical formula of carbonic acid is H2CO3. Its structure consists of a carboxyl group with two hydroxyl groups connected. As a weak acid, it partially ionizes, dissociates or rather, breaks apart, in a solution.

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A gas mixture has a total pressure of 0.51 atm and consists of He and Ne. If the partial pressure of He in the mixture is 0.32 a
sp2606 [1]

Explanation:

Relation between total pressure and mole fraction is as follows.

                   P_{1} = P^{o}x_{1}

where,     P_{1} = partial pressure of gas 1

                x_{1} = mole fraction of gas 1

                P^{o} = total pressure of the gases

Also,  it is known that x_{1} + x_{2} = 1

or,               x_{2} = 1 - x_{1}

It is given that total pressure of gas mixture is 0.51 atm and partial pressure of helium is 0.32 atm.

Hence, calculate the mole fraction of helium gas present in the given mixture as follows.

                P_{He} = P^{o}x_{He}

                0.32 atm = 0.51 atm \times x_{He}

                    x_{He} = 0.63

As, x_{He} + x_{Ne} = 1

so,             x_{Ne} = 1 - x_{He}

                               = 1 - 0.63

                               = 0.37

Hence, calculate the partial pressure of Ne as follows.

                    P_{total} = P_{He}x_{He} + P_{Ne}x_{Ne}

            0.51 atm = 0.32 atm \times 0.63 + P_{Ne}\times 0.37    

                   0.51 atm = 0.2016 atm + 0.37 \times P_{Ne}

                       0.3084 atm = 0.37 \times P_{Ne}

                            P_{Ne} = \frac{0.3084 atm}{0.37}

                                        = 0.834 atm

Thus, we can conclude that the partial pressure of the Ne in the mixture is 0.834 atm.

8 0
3 years ago
Vitellium (Vi) has the following composition:
Dvinal [7]
Answer is: <span>C.)It will be closer to the mass of Vi–193.
</span><span>Average atomic mass of vitellium =
Ar(Vi-188) </span>· ω(Vi-188) + Ar(Vi-191) · ω(Vi-191) + Ar(Vu-193) · ω(Vi-193).
Average atomic mass of vitellium = 
187.9122 amu · 0,10861 + 190.9047 amu · 0,12428 + 192.8938 amu · 0,76711.
Average atomic mass of vitellium = 20,409 + 23,725 + 147,970.
Average atomic mass of vitellium = 192,104.
4 0
3 years ago
Calculate the heat absorbed/released (in Joules) by the solution when the cold pack solid dissolved in water in your experiment.
skad [1K]

Answer:

56765

Explanation:

i did the math and this is the answer

8 0
2 years ago
What is the [H+] of a solution with a pH of 9.40?
LiRa [457]

Answer:

a) 3.98 x 10^-10

Explanation:

Hello,

In this case, for the given pH, we can compute the concentration of hydronium by using the following formula:

pH=-log([H^+])

Hence, solving for the concentration of hydronium:

[H^+]=10^{-pH}=10^{-9.40}\\

[H^+]=3.98x10^{-10}M

Therefore, answer is a) 3.98 x 10^-10

Best regards.

4 0
3 years ago
What is the concentration of kl solution if 20.68g of solute was added to enough water to form 100ml solution?
rewona [7]

Answer:

1.25 M

Explanation:

Step 1: Given data

Mass of KI (solute): 20.68 g

Volume of the solution: 100 mL (0.100 L)

Step 2: Calculate the moles of solute

The molar mass of KI is 166.00 g/mol.

20.68 g × 1 mol/166.00 g = 0.1246 mol

Step 3: Calculate the molar concentration of KI

Molarity is equal to the moles of solute divided by the liters of solution.

M = 0.1246 mol/0.100 L= 1.25 M

5 0
2 years ago
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