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dem82 [27]
3 years ago
15

A police car is approaching the corner. Explain what happens to the frequency of sound as it draws closer. What will you hear?

Chemistry
1 answer:
barxatty [35]3 years ago
8 0
The frequency stays the same it just gets louder
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The (OH) of a given solution =1.00x10-9M. what is this solution s pOH?
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Answer:

9

Explanation:

Given parameters:

Concentration of OH⁻ [OH]= 1 x 10⁻⁹M

Solution:

To find the pOH of a solution can be found using the expression below:

                   pOH = -log₁₀[OH]

          [OH] = concentration of the hydroxyl ions

       pOH = -log₁₀(1 x 10⁻⁹) = - x -9 = 9

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3 years ago
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