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borishaifa [10]
3 years ago
15

What is the mass of 7.50 moles of magnesium chloride, mgcl2?

Chemistry
1 answer:
Natali5045456 [20]3 years ago
8 0
MgCl2 = 1Mg + 2Cl = 1(24.3) + 2(35.45) = 95.2g/1mole
7.50moles MgCl2 x 95.2g MgCl2 = 714g MgCl2
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N2+3H2-2NH3
NemiM [27]

102 grams of ammonia is formed when 3 moles of nitrogen and 6.7 moles of hydrogen reacts.

Explanation:

The equation given is of Haeber's process in which the nitrogen is limiting factor in the ammonia formation and hydrogen if in excess gets delimited.

We know that 1 mole of Nitrogen gives 2 moles of ammonia.

We have 3 moles of nitrogen here,

So, 6 moles of ammonia will be form

so from the formula

no of moles=mass/atomic mass

           mass= no. of moles*atomic mass

                     = 6*17

                       = 102 grams of ammonia will be formed.

So, 6 moles or 102 grams of ammonia is formed when 3 mole of nitrogen and 6.7 mole of hydrogen reacts.

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3 years ago
Sodium has______ Valence electrons and bismuth has ________ electrons
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Answer:

Sodium has 1 valence electron and bismuth has 83 electrons (5 valence electrons)

Explanation:

5 0
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An element is?
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4 0
3 years ago
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An article in a magazine denies that Earth is warming and climate change is occurring. The writer reports that this season was t
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6 0
3 years ago
To determine the concentration of an EDTA solution, 4.11 g of Zn metal was used. The volume of EDTA solution needed to reach the
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Answer:

2.23M

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Molarity of a solution is calculated thus

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According to this question, 4.11g of Zn metal was used in order to reach a volume of EDTA solution of 28.26 mL.

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The concentration of the EDTA solution used is 2.23M

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3 years ago
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