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Kamila [148]
3 years ago
7

CHEMISTRY HELP PLEASE ASAP!

Chemistry
1 answer:
AlexFokin [52]3 years ago
7 0

1 is 3.16 you divide 57.02g by 18g


3 is 0.298 you divide 17.45g by 58.44g


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An analysis of a sugar compound is found to contain 132 grams of carbon (C), 22 grams of hydrogen (H), and 176 grams of oxygen (
ddd [48]
132 g of C  ,   22 g of H   , 176 g of O

132 + 22 + 176 => 330 g <span>of the substance

</span>Now convert the masses in <span>moles :
</span>
C = 12.0 u        H = 1.0 u       O = 16.0 u

C = 132 / 12.0 => 11 moles

H = 22 / 1.0 => 22 moles

O = 176 / 16.0 => 11 moles

Using the values obtained the lowest proportion in mols of elements present, simply divide the values found for the least of them<span>:
</span>
C = 11 / 11 => 1

H = 22 / 11 => 2

O = 11 / 11 => 1

 formula empirically <span>is : CH</span>₂O

hope this helps!


8 0
3 years ago
A solution that has a large amount of dissolved solute is called
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Answer: It is an unsaturated solution

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3 years ago
Explain what would happen to the air temperature at Riverdale School over the course of the
monitta

Answer:

Air temperature increases.

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The air temperature at Riverdale School increases if the groundwater system were used because this system uses very huge amount of water than the other system. By using more molecules having the same temperature, the thing with more molecules has more total kinetic energy or thermal energy than the thing with fewer molecules so that's why air temperature of the school is increases.

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Compared to a 0.1 M aqueous solution of NaCl, a 0.8 M aqueous solution of NaCl has a
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The correct answer is option 2. A 0.8 M aqueous solution of NaCl has a higher boiling point and a lower freezing point than a 0.1 M aqueous solution of NaCl. This is explained by the colligative properties of solutions. For the two properties mentioned, the equation for the calculation of the depression and the elevation is expressed as: ΔT = -Km and <span>ΔT = Km, respectively. As we can see, concentration and the change in the property has a direct relationship.</span>
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The smallest unit that can exist as an element and still have the properties of that element is a(n):
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The smallest unit that can exist as an element and still have proprieties of that element is an Atom<span />
8 0
3 years ago
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