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Liula [17]
3 years ago
15

What is the equation for the acid dissociation constant, Ka, of HF?

Chemistry
1 answer:
VashaNatasha [74]3 years ago
4 0

Answer:

hydrofluoric acid HF H+ + F- 7.2 × 10-4

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Molar mass of a gas lab help?
LuckyWell [14K]

Answer:

The molar mass is determined by applying the Ideal Gas Law, PV = nRT, where P is the pressure (in atm), V is the volume (in L), n is the number of moles of gas, R is the universal gas constant (0.08206 L∙atm/mol∙K), and T is the temperature (in K).

Hope this helps! :)

3 0
3 years ago
For the reaction between aqueous solutions of acetic acid (CH3COOH) and barium hydroxide, Ba(OH)2, write
borishaifa [10]

Answer:

See explanation.

Explanation:

Hello!

In this case, since we are asked to note down the complete molecular equation, complete ionic equation and the net ionic equation for the reaction between acetic acid (weak acid) and barium hydroxide (strong base), we proceed as shown below:

- Complete molecular equation:

2CH_3COOH(aq)+Ba(OH)_2(aq)\rightarrow Ba(CH_3COO)_2(aq)+2H_2O(l)

- Complete ionic equation: in this case, since acetic acid is a weak one, it is not ionized, so we do this:

2CH_3COOH(aq)+Ba^{2+}(aq)+2OH^-(aq)\rightarrow Ba^{2+}(aq)+2CH_3COO^-(aq)+2H_2O(l)

- Net ionic equation: in this case, we cancel out the barium ions as they are the spectators one because they are present at both reactants and products:

2CH_3COOH(aq)+2OH^-(aq)\rightarrow 2CH_3COO^-(aq)+2H_2O(l)\\\\CH_3COOH(aq)+OH^-(aq)\rightarrow CH_3COO^-(aq)+H_2O(l)

Best regards!

3 0
3 years ago
How does heat move between objects that are touching?
Tom [10]

Answer:

<em>Conduction</em>

Explanation:

Conduction is heat transfer between two objects that are touching each other. When two objects touch and one has a higher temperature than the other; heat is transferred to the object with the lower temperature. ... In radiation, heat is transferred from one object to another by electromagnetic waves of energy. <em>Edit </em><em>:</em> <em>Please </em><em>mark </em><em>brainliest</em><em> </em><em>if </em><em>it </em><em>helped,</em><em> </em><em>thanks.</em>

6 0
2 years ago
Which of the following is a negative effect of a volcano?
siniylev [52]

I believe it might be A. Damaged buildings.

B is a positive and so is Tourism.

6 0
3 years ago
What are the five properties of hydrogen?
ratelena [41]
It is nontoxic, nonmetallic, odorless, tasteless, colorless
4 0
3 years ago
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