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2 years ago

How many moles of h+ ions are present in 2.8 l of 0.25 m hydrobromic acid solution?

Chemistry

1 answer:

Romashka [77]2 years ago

4 0

0.7 mol of H⁺ ions are present in 2.8 l of 0.25 m hydrobromic acid solution.

Hydrobromic acid is a strong acid, we can assume that all acid molecules dissociate completely to yield H+ ions and dissociated anion.

<h3>The equation for the dissociation of HBr :</h3>

Hbr (s) → H⁺ (aq) + Br⁻ (aq)

moles H⁺ = ( $2800ml$ ) ( $\frac{1L}{1000ML}$ ) ( $\frac{0.25 mol Hbr}{L}$ ) ( $\frac{1 mol H}{1 mol Hbr}$ )

= 0.7 mol

Therefore, 0.7 mol of H⁺ ions is present.

Learn more about H⁺ ions here:

brainly.com/question/12697532

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3 years ago

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3 years ago

The total volume of seawater is 1.5 x 1021L .Assume that seawater contains 3.1 percent sodium chloride by mass and that its dens

son4ous [18]

Answer:

Mass in kg = 4.7*10^19 kg

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Total volume of sea water = 1.5*10^21 L

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Density of seawater = 1.03 g/ml

To determine:

Total mass of NaCl in kg and in tons

Calculation:

Unit conversion:

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To convert mass from g to Kg:

1000 g = 1 kg

$Mass\ seawater(kg) = \frac{4.7*10^{22}g*1kg }{1000g} =4.7*10^{19} kg$

To convert mass from g to tons:

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3 years ago

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3 years ago

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vlabodo [156]

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3 years ago