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gogolik [260]
2 years ago
15

Describe the effects of temperature and pressure on solubility. If you had used boiling water instead of lukewarm water, would y

our results have changed? If so, how?
Chemistry
1 answer:
Vikentia [17]2 years ago
8 0

Explanation:

The effect of temperature on solubility of liquid has a direct proportion relationship, hence increased temperature increases the solubility of substances in liquids.

Pressure does not affect solubility in liquids, but the effects can be seen in gases as a direct proportion relationship.

Using boiling water would change the result, increased temperature will increase the kinetic energy of the solvent molecules to break the solute molecules rapidly hence causing the solute molecules to dissolve rapidly

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Phytoplankton are microscopic photosynthesizing organisms that typically live in the upper layers of the ocean. What trophic lev
alex41 [277]

Answer:

Primary producers

Explanation:

Phytoplankton belong to the <u><em>primary producers</em></u> trophic level. Beings of the other levels gain energy from phytoplankton. Phytoplankton are also capable of transforming inorganic carbon into protoplasm.

4 0
3 years ago
I need help and it for my science class
stealth61 [152]
They have energy.
If something is moving, it must have kinetic energy.
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5 0
2 years ago
What is the volume of as sample that has a mass of 40.0 g and a density of 4.30 g/mL?
kati45 [8]

Explanation:

density = mass/volume so volume = mass/density = 40/4.30

4 0
3 years ago
using the soubility curve what is the solubilityof nh4cl in 10 mL of water at a temperature of 60 degrees Celsius​
lukranit [14]

Answer:

Please, see attached two figures:

  • The first figure shows the solutility curves for several soluts in water, which is needed to answer the question.

  • The second figure shows the reading of the solutiblity of NH₄Cl at a temperature of 60°C.

  • Answer: <u>5.5g</u>

Explanation:

The red  arrow on the second attachement shows how you must go vertically from the temperature of 60ºC on the horizontal axis, up to intersecting curve for the <em>solubility</em> of <em>NH₄Cl.</em>

From there, you must move horizontally to the left (green arrow) to reach the vertical axis and read the solubility: the reading is about in the middle of the marks for 50 and 60 grams of solute per 100 grams of water: that is 55 grams of grams of solute per 100 grams of water.

Assuming density 1.0 g/mol for water, 10 mL of water is:

            10mL\times 1.0g/mL=10g

Thus, the solutibily is:

      10gWater\times 55gNH_4Cl/100gWater=5.5gNH_4Cl

5 0
3 years ago
Is a strong acid<br> a. NaC₂H₃O₂ <br> b. HC₂H₃O₂<br> c. KCl <br> d. NH₃<br> e. HCl
sammy [17]
E. HCI

Source:
The Internet
7 0
3 years ago
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