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Anna71 [15]
4 years ago
10

You make a salt water solution by dissolving salt in water. In order to separate the salt back out of the solution, what should

you do? A. It cannot be separated. B. Separate it with evaporation. C. Separate it with a filter. D. Separate it with a Buchner funnel.
Chemistry
2 answers:
lozanna [386]4 years ago
7 0
B - as it’s the fastest and most practical
lana66690 [7]4 years ago
4 0
B. Separate it with evaporation
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Answer:

              1.75 moles of H₂O

Solution:

The Balance Chemical Equation is as follow,

                                   N₂H₄  +  O₂    →    N₂  +  2 H₂O

Step 1: Calculate the Limiting Reagent,

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So,

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Solving for X,

                       X  =  (28 g × 32 g) ÷ 32.04 g

                       X  =  27.96 g of O₂

It means 29 g of N₂H₄ requires 47.96 g of O₂, while we are provided with 73 g of O₂ which is in excess. Therefore, N₂H₄ is the limiting reagent and will control the yield of products.

Step 2: Calculate moles of Water produced,

According to equation,

            32.04 g (1 mol) of N₂H₄ produces  =  2 moles of H₂O

So,

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Solving for X,

                      X  =  (28 g × 2 mol) ÷ 32.04 g

                      X  =  1.75 moles of H₂O

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4 years ago
Help pls this is due tomorrow
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Answer:

10(HCl)

10H+10Cl

10+(35.453×10)

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think it should be option <em><u>a</u></em>

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