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vitfil [10]
3 years ago
15

Which substance will require more energy to heat if all the samples have the same mass and same temperature change?

Chemistry
1 answer:
Art [367]3 years ago
7 0
If mass and the temperature change is not a factor then we can take a look at the chemical bonds in the substance. Chemical bonds can also dictate how hard a sample can be heated or to break the bonds in it.Two of the strongest bonds are the ionic and covalent bond. The strongest of the two is the ionic.
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Explanation:

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3 years ago
The absorbance (????)(A) of a solution is defined as ????=log10(????0????) A=log10⁡(I0I) where ????0I0 is the incident‑light int
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Answer:

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Explanation:

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Formula used :

A=\epsilon \times c\times l

A=\log \frac{I_o}{I}

\log \frac{I_o}{I}=\epsilon \times c\times l

where,

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\epsilon = Molar absorption coefficient

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Given :

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c = 1 mg /mL = {1mg /mL}{\text{Molar mass of myoglobin}}

c = \frac{1 mg/mL}{ 17800 g/mol} = 5.6179\times 10^{-5} mol/L

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A= 15,000 M^{-1}cm^{-1}\times 5.6179\times 10^{-5} mol/L\times 1 cm

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The absorbance of the myoglobin solution across a 1 cm path is 0.84.

5 0
3 years ago
Explain why it is important for cells to exchange materials.
Alla [95]

Answer:

they need the exchange so they can grow, obtain energy, and get rid of waste. It also helps to mantian a balance of amterials in the cell.

Explanation:

6 0
3 years ago
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