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3 years ago

alguien me puede ayudar en química por favor no trolls es de suma importancia

Chemistry

1 answer:

Sedaia [141]3 years ago

6 0

Second option is the correct answer I believe

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Match the salt with the acid and base used to form it in a neutralizing reaction. K2SO4

emmasim [6.3K]

Answer:

KOH and H₂SO₄

Explanation:

Neutralization reaction:

It is the reaction in which acid and base react with each other and produce salt and water.

For example:

2KOH + H₂SO₄ → K₂SO₄ + 2H₂O

1. Potassium hydroxide and sulfuric acid react to produce potassium sulfate salt and water.

2. Potassium hydroxide and phosphoric acid react to produce potassium phosphate and water.

H₃PO₄ + 3KOH → K₃PO₄ + 3H₂O

3. Phosphoric acid sodium hydroxide react to produce sodium phosphate and water.

H₃PO₄ + 3NaOH → Na₃PO₄ + 3H₂O

3 0

3 years ago

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Why don't protins stick together

irinina [24]

Because proteins are basically building blocks which mean that they only fit to specific pieces.

3 0

2 years ago

Which type of reaction forms water from hydrogen and oxygen atoms?

Cloud [144]

I believe it was decomposition reaction

7 0

3 years ago

In which period would you find Mercury?

Mamont248 [21]

Answer:

period 6

Explanation:

3 0

2 years ago

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Sodas are not only full of sugar (124 grams/L), but they are also acidic and will dissolve your teeth, composed of hydroxyapatit

Naya [18.7K]

Answer:

The pH of the HCl solution is 3.9

Explanation:

Knowing the molar mass of HCl (36.5g/mol) it is possible to calculate the number of moles of HCl in the solution,

$\frac{1.5x10^{-3}g}{36.5g/mol} = 4.1x10^{-5}moles$ of HCl

HCl is a strong acid and when added to water will form H+ and Cl-, thus the moles of HCl are equal to moles of H+ in 354 mL of water

$\frac{4.1x10^{-5}moles }{354mL} x 1000= 1.16x10^{-4} M$

The concentration of protons in the solutions is $1.16x10^{-4} M$ .

The expression used to calculate the pH is

$pH = -Log ([H^{+}]) = -Log (1.16x10^{-4} M) = 3.9$

Hence, the pH of the HCl solution is 3.9 and Pepsi has a pH of 3.4 approximately, so they have almost the same pH.

3 0

2 years ago

￼alguien me puede ayudar en química por favor no trolls es de suma importancia

alguien me puede ayudar en química por favor no trolls es de suma importancia