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Ghella [55]
4 years ago
9

Fill in the blank

Chemistry
1 answer:
soldi70 [24.7K]4 years ago
5 0
Northern hemisphere
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Below the epidermis is the dermis. This is where our blood vessels, nerve endings, sweat glands, and hair follicles are.

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Calculate the theoretical yield in moles of magnesium chloride when 37 grams of Mg(s) react with 38 grams of HCl(aq).Write the a
goblinko [34]

Answer:

The correct answer is 0.52 moles.

Explanation:

Based on the given question, 37 grams of magnesium reacts with 38 grams of HCl to produce MgCl2 or magnesium chloride. The reaction is:  

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

There is a need to find the theoretical yield in moles of MgCl2. The formula for calculating the no. or moles is mass/molar mass. Therefore, moles of magnesium is 37/24 = 1.54 and moles of HCl will be 38/36.5 = 1.04.  

From the reaction it is clear that one mole of magnesium reacts with two moles of HCl, as lesser quantity of HCl is present in the given case, therefore, HCl will be the limiting reagent.

Now theoretical moles of magnesium chloride will be,  

= moles of HCl / 2

= 1.04 / 2  

= 0.52 moles

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3 years ago
A sample of matter was given the following description: The sample of the pure substance is blue in color with an octahedral sha
Alexeev081 [22]

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A crystalline solid

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What happens to an atom in a liquid as it freezes?
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