Determine the pH of a 5x10^-4 M solution of Ca(OH)2

Answers

Answer 1
Answer: Ca(OH)₂ ==> Ca²⁺ + 2 OH-   

Ca(OH)
₂ is strong Bases

Therefore,  the [OH-] equals 5 x 10⁻⁴ M. For every Ca(OH)₂ you produce 2 OH⁻.

pOH = - log[ OH⁻]

pOH = - log [ 5 x 10⁻⁴ ]

pOH = 3.30

pH + pOH = 14

pH + 3.30 = 14

pH = 14 - 3.30

pH = 10.7

hope this helps!

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What is the purpose of the scale on a map?

Answers

Answer:

Explanation:

The scale on a map represents the actual distance of any geographical or man made entity with respect to the map units. For example a scale of 1:10000 states that 1 unit of any mode of measurement on map is equal to 10,000 mode of measurement on ground. This mode of measurement could be cm, km , feet etc. Thus 1 cm of map may represent 1000 m, 10000 km , 200000 feet etc.  

The scale is used to represent the relative distance in both horizontal and vertical directions.

The scale on a map provides a reference for understanding distances and spatial relationships of geographical features present in the map.

What is the purpose of the scale on a map?

The scale on a map serves the purpose of representing the relationship between distances on the map and the corresponding distances in the real world.

It allows users to accurately measure distances and understand the relative sizes and proportions of features represented on the map.

The scale is typically depicted as a line or a bar, usually located in the corner of the map.

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Thus, the scale on a map provides a reference for understanding distances and spatial relationships of geographical features present in the map.

Learn more about scale on maps here: brainly.com/question/3269934

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A period is a horizontal row on the periodic table.
a. True
b. False

Answers

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Answers

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Answers

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Answers

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Answers

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