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3 years ago

2. How would a thermometer that measures

1 answer:

8 0

Two very big differences between Kelvin and Celsius: 1. Kelvin has no negative numbers, 2. All Celsius amounts are 273 degrees less than it’s equal kelvin amount

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Please help!!! Is it balanced or unbalanced?

Black_prince [1.1K]

Hey there!

I believe the answer you are looking for is Unbalanced!

If I am incorrect I am very sorry and would love any feedback.

Have a nice day, and Happy Halloween!

6 0

4 years ago

Imagine two solutions with the same concentration and the same boiling point, but one has ethanol as the solvent and the other h

defon

Answer: m = 0.42; Tb = 79°

Explanation: The relationship between boiling point of the solvent above a solution is directly proportional to the molal concentration of the solute, i.e.:

ΔT = $K_{b}.m$

where

ΔT is the change in boiling point of the solvent;

$K_{b}$ is the molal boiling point elevation constant;

m is the molal concentration of the solute in the solution;

For there two solutions:

1) Ethanol:

ΔT = $K_{b}.m$

Tb - $T_{normal} = K_{b}.m$

Tb - 78.4 = 1.22.m (1)

2) Carbon Tetrachloride:

Tb - $T_{normal} = K_{b}.m$

Tb - 76.8 = 5.03.m (2)

Solving the system of equations:

Tb - 78.4 = 1.22.m

Tb = 1.22.m + 78.4 (3)

Substituing (3) in (2)

1.22.m + 78.4 - 76.8 = 5.03m

3.81m = 1.6

m = 0.42

With m, find Tb:

T - 76.8 = 5.03.0.42

T = 2.11 + 76.8

T = 79°

Molal concentration is 0.42 and boiling point is 79°

4 0

3 years ago

Convert 55 m3 to liters

luda_lava [24]

Explanation:

<h3>hope it help you thanku byy </h3>

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4 0

2 years ago

Each student in Ms. Major's class was given an unknown substance. Ms. Major gave her students a list, shown below, of substances

soldi70 [24.7K]

Answer;

Water 1.0 g/mL 100°C colorless liquid

Explanation:

thats the answer

7 0

4 years ago

Read 2 more answers

Which way would CCI2F2 orient in an electric field?

ArbitrLikvidat [17]

Answer:

See explanation

Explanation:

In looking at molecules to determine whether they are polar or not we have to look at two things basically;

i) presence of polar bonds

ii) geometry of the molecule

Now, we know that CCI2F2 is a tetrahedral molecule, but the molecule is not symmetrical. It has four polar bonds that are not all the same hence the molecule is polar.

In an electric field, polar molecules orient themselves in such a way that the positive ends of the molecule are being attracted to the negative plate while the negative ends of the molecules are attracted to the positive plate.

So the positive ends of CCI2F2 are oriented towards the negative plate of the field while the negative ends of CCI2F2 are oriented towards the positive ends of the field.

3 0

3 years ago