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Bond [772]
4 years ago
11

During the lab, you measured the pH of common household items. Write net Brønsted equations that show the acidic or basic nature

of the following substances, given the pH. For polyprotic acids, only show one proton transfer. Remember that spectator ions are not included. (Use the lowest possible coefficients. Omit states-of-matter in your answer.) (a) native lime (calcium oxide) with a pH of 10.50
Chemistry
1 answer:
tamaranim1 [39]4 years ago
8 0

Answer:

CaO + H₂O ⟶ Ca²⁺ + 2OH⁻

Explanation:

CaO + H₂O  ⟶     Ca²⁺   +   2OH⁻

base    acid       conj. acid  conj. base

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The anawer of this question is 0.024 m/h

Explanation:

Other explanations of the question are additional.

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How many Molecules does CH4 Have
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4 years ago
A 2.5 L container is filled with propane. The ambient temperature is 25°C and the
madam [21]

Answer:

The pressure inside the container will be 3.3 atmospheres

Explanation:

The relationship between the temperature and pressure of a gas occupying a fixed volume is given by Gay-Lussac's law which states that the pressure of a given amount of gas is directly proportional to its temperature on the kelvin scale when the volume is kept constant.

Mathematically, it expressed as: P₁/T₁ = P₂/T₂

where P₁ is initial pressure, T₁ is initial temperature, P₂ is final pressure, T₂ is final temperature.

The above expression shows that the ratio of the pressure and temperature is always constant.

In the given question, the gas in the can attains the temperature of its environment.

P₁ = 3 atm,

T₁ = 25 °C = (273.15 + 25) K = 298.15 K,

P₂ = ?

T₂ = (55 °C = 273.15 + 55) K = 328.15 K

Substituting the values in the equation

3/298.15 = P₂/328.15

P₂ = 3 × 328.15/298.15

P₂ = 3.3 atm

Therefore, the pressure inside the container will be 3.3 atmospheres

7 0
3 years ago
A substance has a triple point at −24.5 ∘C and 225 mmHg. What is most likely to happen to a solid sample of the substance as it
mr Goodwill [35]

Answer:

The solid will sublime into a gas

Explanation:

In the graph in the attachment

Y-axis represents pressure in mm of Hg

X- axis represents temperature in degree Celsius

The graph show the triple point of water.

Clearly, the sample will go from solid to vapor directly, no liquid involved (pink line is there to show that this is below triple point)

So

expect sublimation

The solid will sublime into a gas.

4 0
3 years ago
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