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3 years ago

Which is the molar mass of H2O?

Chemistry

2 answers:

Anestetic [448]3 years ago

6 0

<u>Answer:</u> The molar mass of water is 18 g/mol

<u>Explanation:</u>

Molar mass of a compound is defined as the sum of mass of every element each multiplied by the number of atoms of that element.

We are given a compound having chemical formula $H_2O$

Molar mass of hydrogen = 1 g/mol

Molar mass of oxygen = 16 g/mol

Mass of water = $[(2\times 1)+16]=18g/mol$

Hence, the molar mass of water is 18 g/mol

Svetllana [295]3 years ago

3 0

H=(2x1.008)=2.016
O= 15.999

15.999
+ 2.016
______
18.015 g/mol :)

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zavuch27 [327]

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<h3>What is a strong and weak acid?</h3>

When an acid is dissolved in water, all of its molecules disintegrate, making the acid powerful.

When an acid is dissolved in water, only a small number of its molecules disintegrate, making the acid weak. Strong acids have a lower pH than weak acids.

The powerful acids include perchloric acid, chloric acid, nitric acid, sulfuric acid, hydrobromic acid, and hydroiodic acid.

Given:

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$pH=pka+log \frac{F^{-}}{HF} \\\\7=3.2+log\frac{F^{-}}{HF} \\3.8=log\frac{F^{-}}{HF}\\ \frac{F^{-}}{0.1}=10^{3.8} \\F^{-}=630.95 M$

Now,

$\frac{F^{-}}{HF}=\frac{630.95}{0.1}\\ =6309.57$

F-:HF= 6309.57:1

Therefore, the most abundant is $F^{-}$ and has 6310 times more than HF is $F^{-}$ .

To know more about strong and weak acids, visit: brainly.com/question/12811944

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