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marishachu [46]
2 years ago
11

Assume that there is a puddle that contains 12.0 kg of water and it froze outside since it is -1°C. The

Chemistry
1 answer:
Musya8 [376]2 years ago
4 0

The temperature that must be to freeze the solution would be -21.1 ° C.

<h3>How to calculate the freezing temperature of this solution?</h3>

To calculate the freezing temperature we must take into account the following information.

  • Solution with a salt concentration of 10% is frozen at -6°C
  • Solution with a salt concentration of 20% is frozen at -16°C
  • Solution with a higher concentration is frozen at -21.1°C

According to the above, it can be inferred that the puddle has a 50% concentration of salt because they had 12 kg of water and 6 kg of salt.

So the lowest freezing temperature would be 21.1°C because the puddle is 50% concentrated.

Note: This question is incomplete because there is some missing information. Here is the missing information:

  • A 10% salt solution freezes at about 20°F (-6°C), and a 20% solution freezes at 2°F (-16°C).
  • The lowest freezing point obtainable for salt solutions is −21.1 °C

Learn more about freezing in: brainly.com/question/14131507

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D</span>iffusion is <span>a spontaneous movement of particles from an area of high concentration to an area of low concentration.

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Also, in osmosis, the water molecules are moving. In diffusion, it is the solutes moving.

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3 years ago
when 4.00 g of sulfur are combined with 4.00 g of oxygen, 8.00 g of sulfur dioxide (so2) are formed. what mass of oxygen would b
Darina [25.2K]

Answer:

6g O2

Explanation:

Mole to mole ratio:

A balanced chemical equation shows a chemical reaction while maintaining the law of conservation of mass. The coefficients of the substances are known to be very helpful in computations as they represent the equivalent amounts of moles of the species that would be participating in the reaction.

We set up the chemical equation and then find the balanced chemical expression.

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True or false: You must make observations and conduct research prior to creating a hypothesis.
bekas [8.4K]

Answer:

true

Explanation:

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3 years ago
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andriy [413]

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Metals have high densities, high melting points, are malleable and ductile, and can conduct heat and electricity.

Hope this helps as well! :)

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