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vladimir1956 [14]

4 years ago

9

All synthetic elements...

1 answer:

ki77a [65]4 years ago

4 0

In chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially. So far, 24 synthetic elements have been created (those with atomic numbers 95–118). All are unstable, decaying with half-lives ranging from 15.6 million years to a few hundred microseconds.

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3) What is the molarity of a solution that has 27.6 g of propanol (C3H2O) dissolved in 325 mL of solution? The molar mass of eth

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Answer:

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4 years ago

An acidic solution at 25°c will have a hydronium ion concentration ________ and a ph value ________.

lesantik [10]

The given question is incomplete. The complete question is:

An acidic solution at 25°C will have a hydronium ion concentration ________ and a pH value ________.

$[H_3O^+]$ > $1\times 10^{-7}$ M, pH < 7.00

$[H_3O^+]$ < $1\times 10^{-7}$ , pH < 7.00

$[H_3O^+]$ < $1\times 10^{-7}$ ,, pH > 7.00

$[H_3O^+]$ > $1\times 10^{-7}$ ,, pH > 7.00

Answer: $[H_3O^+]$ > $1\times 10^{-7}$ M, pH < 7.00

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

Acids have pH ranging from 1 to 6.9, bases have pH ranging from 7.1 to 14 and neutral solutions have pH equal to 7.

$pH=-\log [H_3O^+]$

$7=-log[H_3O^+]$

$[H_3O^+]=10^{-7}$

As pH of acids is less than 7, the hydronium ion concentration is greater than

Thus the correct option is $[H_3O^+]$ > $1\times 10^{-7}$ M, pH < 7.00

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4 years ago