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postnew [5]
3 years ago
9

How the solute absorb temperature from the surroundings?

Chemistry
1 answer:
Lady bird [3.3K]3 years ago
6 0
The system will adjust to this increase in the heat by promoting the dissolution reaction to absorb some of the heat energy
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A patients blood is tested for growth hormone which has a molecular mass of 848.952g/mol. The test results show a normal concent
rusak2 [61]

Answer:

\boxed{4.7\times 10^{-9}}

Explanation:

Data:

MM = 848.952 g/mol  

   c = 4.0 x 10⁻⁶ g/L

  V = 1 L

Calculations:

(a) Mass of growth hormone

\text{Mass} = \text{1 L} \times \dfrac{4.0 \times 10^{-6} \text{ g}}{\text{1 L}} = 4.0 \times 10^{-6} \text{ g}

(b) Moles of growth hormone

\text{Moles} = 4.0 \times 10^{-6} \text{ g} \times \dfrac{\text{1 mol}}{\text{848.952 g}} = 4.7\times 10^{-9}\text{ mol}\\\\\text{There are $\boxed{\mathbf{4.7\times 10^{-9}}\textbf{ mol}}$ of growth hormone in 1 L of blood.}

8 0
3 years ago
Worth 20 points will mark you brainliest!
alexgriva [62]
The one u clicked is the the right one
5 0
3 years ago
Help me with this Living Environment question, I don't get it.
Ket [755]

City

<u>Explanation:</u>

The best analogy to explain the functions performed by a cell is by comparing it to a city.

Just like the city performs a multitude of task by housing critical elements like powerhouse, restaurants, transportation else, same way cell to performs similar functions for the body.

E.g.

  • In cell “Mitochondria” provides it with energy or the power in the same way “powerhouse” provides power to the city
  • Golgi bodies work as a car for transporting proteins to other parts of the cell.  

8 0
3 years ago
The equivalence point of a weak acid: a. is at 7 b. Is above pH 7 c. Is below pH 7
almond37 [142]

Answer:

b) is above pH 7

Explanation:

In the case of titration of a weak acid with a strong base, equivalence point occurs at pH> 7; there is complete salt formation, then the pH is calculated through the salt.

8 0
3 years ago
Based on my previous question.. What is the op for acid in this experiment? ​
maria [59]

Answer:

Acid is a substance which water solution turns blue litmus paper to a red color.

Explanation:

The operational definition means what acid did in the experiment.

Acid is a substance which water solution turns blue litmus paper to red color.

3 0
3 years ago
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