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Lemur [1.5K]
2 years ago
12

PLEASE HELPPP MEEEE

Chemistry
2 answers:
disa [49]2 years ago
5 0

Answer: Option (b) is the correct answer.

Explanation:

Freezing point is defined as the point at which liquid state of a substance changes into solid state.

So, in the given table it is shown that at temperature 18^{o}C the substance is changing into solid state. Whereas at 23^{o}C the substance is in liquid state.

Hence, 18^{o}C will be the freezing point of the substance.

Thus, we can conclude that the statement its freezing point is 18^{o}C, is correct about the unknown substance.

Cloud [144]2 years ago
4 0

The second statment is true and right. Hope this helps!!

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What is the change in the freezing point of water when 35.0 g of sucrose is
frez [133]

From the calculations, we can see that, the change in the freezing point is -0.634°C.

<h3>What is freezing point?</h3>

The term freezing point refers to the temperature at which a liquid is changed to solid.

Given that;

ΔT = K  m i

Number of moles sucrose = 35.0 g/ 342.30 g/mol = 0.1 moles

molality =  0.1 moles/ 300.0 * 10^-3 Kg

= 0.33 m

Thus;

ΔT = -1.86°C/mol *  0.33 m * 1

= -0.634°C

Learn more about freezing point:brainly.com/question/3121416

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3 0
2 years ago
In order to perform a chemical reaction, 225 mL of 0.500 M lead (II) nitrate is required. How much 5.00 M stock solution is requ
vladimir1956 [14]

Answer:

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4 0
3 years ago
Water conservation is important for which of the following reasons?
Kay [80]

D

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3 0
2 years ago
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5. Which of the following has variable composition<br>A. Water<br>B. sugar<br>C, soil<br>D. Salt​
erica [24]

Answer:

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Explanation:

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7 0
3 years ago
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7 0
3 years ago
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