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2 years ago

Most grasshoppers stridulate to make sounds, what does that mean?

Chemistry

1 answer:

igomit [66]2 years ago

6 0

Answer: grasshoppers produce sounds to attract mates or protect territory.

Explanation: Like their cricket cousins, grasshoppers produce sounds to attract mates or protect territory. Grasshoppers can be identified by their unique songs, which differ slightly from species to species. Grasshoppers stridulate by rubbing their wings together in the same manner as crickets.

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What is the pH of a 5.09 x 10-5 M solution of NaOH?

Varvara68 [4.7K]

<u>Answer:</u> The pH of the solution is 9.71

<u>Explanation:</u>

1 mole of NaOH produces 1 mole of sodium ions and 1 mole of hydroxide ions.

We are given:

pOH of the solution = 7.2

To calculate the pH of the solution, we need to determine pOH of the solution. To calculate pOh of the solution, we use the equation:

$pOH=-\log[OH^-]$

We are given:

$[OH^-]=5.09\times 10^{-5}M$

Putting values in above equation, we get:

$pOH=-\log(5.09\times 10^{-5})\\\\pOH=4.29$

To calculate pH of the solution, we use the equation:

$pH+pOH=14\\pH=14-4.29=9.71$

Hence, the pH of the solution is 9.71

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2 years ago

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yanalaym [24]

Answer:

Explanation:

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Ilia_Sergeevich [38]

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Explanation:

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