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den301095 [7]
3 years ago
9

Which condition applies when water boils at 100°c? air pressure equals a specific value (101.3 kpa) air pressure is less than it

s value at the triple point of water air pressure is zero, as in a vacuum vapor pressure is zero
Chemistry
2 answers:
Alinara [238K]3 years ago
8 0
Water normally boils when the vapor pressure of water is equal to the external pressure. That is, at 100 degree Celsius, the external vapor will be 101.3 kpa. The correct answer is A.
FrozenT [24]3 years ago
4 0

The correct answer is air pressure equals a specific value(101.3 kpa)

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Property of a substance
Scrat [10]

There are many properties to substances.

I'll list some examples below:

  • Mass
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Hope this helps! :3

8 0
3 years ago
Copper(ii) chloride reacts with sodium nitrate to produce copper(ii) nitrate and sodium chloride.
zlopas [31]

Answer:

CuCl2 + 2NaNO3 - > Cu(NO3)2 + 2NaCl

5 0
2 years ago
If the a of a monoprotic weak acid is 2. 6×10−6, what is the ph of a 0. 33 m solution of this acid?
yawa3891 [41]

The pH of the monoprotic weak acid is 2.79.

<h3>What are weak acids?</h3>

The weak acids are the acids that do not fully dissociate into ions in the solution. Strong acids fully dissociate into ions.

The chemical reaction is HA(aq) ⇄ A⁻(aq) + H⁺(aq).

c (monoprotic acid) = 0.33 M.

Ka = 1.2·10⁻⁶

[A⁻] = [H⁺] = x

[HA] = 0.33 M - x

Ka = [A⁻]·[H⁺] / [HA]

2. 6 × 10⁻⁶ = x² / (0.33 M - x)

Solve quadratic equation: [H⁺] = 0.000524 M.

pH = -log[H⁺]

pH = -log(0.000524 M)

pH = 2.79

Thus,  the pH of the monoprotic weak acid is 2.79

To learn more about weak acids, refer to the below link:

brainly.com/question/13032224

#SPJ4

5 0
2 years ago
Combustion of 6.90g of this compound produced 13.8g of CO2 and 5.64g of H2O. What is the empirical formula of the unknown compou
Alla [95]
The empirical formula for the unknown compound would be: C2H4O (2 molecules of Carbon, 4 molecules of Hydrogen, and 1 molecule of Oxygen)
4 0
3 years ago
Which fossil fuel accounts for 95% of consumption for transportation?
Ilia_Sergeevich [38]

Answer:

oil

Explanation:

i hope this helps :)

3 0
3 years ago
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