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Artemon [7]
3 years ago
10

What is the pH when [H+] = 0.000032 M?

Chemistry
1 answer:
notka56 [123]3 years ago
5 0

Explanation:

pH =  -  log[H {}^{ + } ] \\  =  -  log(0.000032)  \\  = 4.5

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Is 4H2O an organic molecule ?
Ludmilka [50]

Answer:

it is an organic molecule

Explanation:

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8 0
4 years ago
1. How many calcium atoms are in 8CaOH?
Vedmedyk [2.9K]

Answer:

8

Explanation:

the number before the abbrviation for calcium (Ca) shows how many calcium there is.

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The molar absorptivity of Beta-carotene at 490 nm is 1.36 x 105 M-1cm-1. What is the concentration of a solution of Beta-caroten
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Answer:

The correct answer to the following question will be Option E (1.0 x 10⁻³ M).

Explanation:

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A\lambda =140

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As we know,

⇒  A\lambda=\varepsilon CL

On putting the given values in the above formula, we get

⇒  140=1.36\times 10^5\times C\times 1

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⇒  C=102.9\times 10^{-5} \ M

So that option E is the right answer.

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What type of bond is formed between cobalt and sulfur? (covalent or ionic?)
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