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1 year ago

Describe a method for making pure crystals of magnesium chloride from magnesium and dilute hydrochloric acid

1 answer:

8 0

The method for making pure crystals of magnesium chloride from magnesium and dilute hydrochloric acid is given below:

<h3>Making pure crystals of magnesium chloride from magnesium and dilute hydrochloric acid</h3>

According to the reaction, magnesium and weak hydrochloric acid react to create magnesium chloride and release hydrogen gas.

MgCl2 (aq) + H2 from Mg (s) + 2HCl (g)

Following is the process for extracting pure magnesium chloride from the reaction.

First: Reaction

Keep a beaker with the diluted hydrochloric acid inside.
Add magnesium gradually until there is an excess or until no more gas appears to be escaping.

Second step: filtering

Filter using a funnel and filter paper.
Remove the surplus magnesium by filtering it out because the filtrate will contain aqueous (liquid) magnesium chloride. The surplus magnesium is in the residual.

To create solid crystals from the filtrate, go to:

Step three, crystallization.

Transfer filtrate solution to a dish or basin for evaporation.
Transfer filtrate solution to a dish or basin for evaporation.
Use a Bunsen burner to provide heat
Pour the solution into a basin that will evaporate it, then warm it over a water bath.
Turn off the heat when crystals begin to form.
Let the water drain until only pure crystals are left.
Dry crystals in a heated oven or on absorbent paper.

Lastly, Precautions:

Wear eye protection, especially when heating, and use personal protective equipment such gloves and lab coats.
Prevent breathing in extra gases while the process is underway.

Learn more about magnesium chloride from
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Answer:

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Explanation:

pH is a scale which measures the ratio of H+ ions to OH- ions to identify how acidic or basic a substance is. This is because acidic substances have high amounts of H+ ions and low amounts of OH- ions, and therefore have a higher ratio of H+ to OH- ions. (And vice versa for bases, low H+ to OH- ratio) On a pH scale, acidic substances have a pH of 0 to 7, water (neutral pH, not acidic nor basic) has a pH of 7, and bases have a pH of 7-14.

pOH is very similar to pH but measures the opposite: the ratio of OH- ions (indicative of a base) to H+ ions (indicative of an acid). Therefore the pH values are reversed on the scale: Basic substances have pOHs below 7, and acidic substances are above 7 on the pOH scale.

Fundamentally, these two scales measure the same thing is the same way, one just measures the ratio one way (H+:OH-), while the other measured them the other way (OH-:H+), resulting in flipped values on the scales:

pH: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Hope this helped!

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Hello!
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You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
</span>
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Answer:

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Explanation:

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