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nekit [7.7K]
2 years ago
13

Why is excess magnesium oxide used in the formation of magnesium sulfate crystals?​

Chemistry
2 answers:
Tom [10]2 years ago
3 0

I really don't know what the answer is

Anestetic [448]2 years ago
3 0

Answer:

When you want magnesium sulfate salts in lab use magnesium oxide and magnesium carbonate to prepare magnesium sulfate,because magnesume react with sulfuric acids to produce hydrogen gas and that is very dangerous because it explode easily.

Explanation:

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How could you distinguish octane from 1-octene by a simple<br> chemical test?
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Niobium-91 has a half-life of 680 years. After 2,040 years, how much niobium-91 will remain from a 300.0-g sample? 3 g 18.75 g 3
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Which substance has a high melting point and conducts electricity in the liquid phase
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3 years ago
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If 4.12 l of a 0.850 m-h3po4 solution is be diluted to a volume of 10.00 l, what is the concentration of the resulting solution?
statuscvo [17]

The process in which the concentration of the solution is lessened  by the addition of water is said to be dilution and equation of dilution relates the initial concentration and volume of stock solution with the final concentration and volume of the solution.

Formula is given by:

C_{1}V_{1}=C_{2}V_{2}   (1)

where,

C_{1} is the initial concentration

V_{1} is the initial volume

C_{2} is the final concentration

V_{2} is the final volume

Now,

C_{1} = 0.850 M

V_{1} = 4.12 L

C_{2}  =?

V_{2} = 10.00 L

Substitute the give values in formula (1),

0.850 M\times 4.12L=C_{2}\times 10.00 L

C_{2} =\frac{0.850 M\times 4.12L}{10.00 L}

= 0.3502 M

Thus, the final concentration of theH_{3}PO_{4} solution = 0.3502 M












5 0
2 years ago
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