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2 years ago

guys im morgz im going to put a nail on the seat in my mom room and im going to see how up her a- s s it will go lets see

Chemistry

1 answer:

vagabundo [1.1K]2 years ago

6 0

Answer:

go outside and ponder your life choices dork.

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Write five characteristics of good government?

Oduvanchick [21]

Explanation:

giving equal opportunity,making good governance, maintaining peace and harmony among people, other try to write by your self

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2 years ago

A saturated solution is made by dissolving 0.327 g of a polypeptide (a substance formed by joining together in a chainlike fashi

faust18 [17]

Answer: The approximate molecular mass of the polypeptide is 856 g/mol

Explanation:

To calculate the concentration of solute, we use the equation for osmotic pressure, which is:

$\pi=iMRT$

Or,

$\pi=i\times \frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution in L)}}\times RT$

where,

$\pi$ = osmotic pressure of the solution = 4.19 torr

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (polypeptide) = 0.327 g

Volume of solution = 1.70 L

R = Gas constant = $62.364\text{ L.torr }mol^{-1}K^{-1}$

T = temperature of the solution = $26^oC=[273+26]K=299K$

Putting values in above equation, we get:

$4.19torr=1\times \frac{0.327}{\text{Molar mass of solute}\times 1.70}\times 62.364\text{ L.mmHg }mol^{-1}K^{-1}\times 299K\\\\\text{molar mass of solute}=856g/mol$

Hence, the molar mass of the polypeptide is 856 g/mol

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2 years ago

QveST [7]

Answer:

: The conductivity of electrolyte solutions: (a) 0.1 M NaCl (b) 0.05 M NaCl (c) 0.1 M HgCl2. An electrolyte solution conducts electricity because of the movement of ions in the solution (see above). The larger the concentration of ions, the better the solutions conducts. Weak electrolytes, such as HgCl2, conduct badly because they produce few ions when dissolved (low concentration of ions) and exist mainly in the form of molecules.

Explanation:

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1 year ago

What color is a window

Amiraneli [1.4K]

Answer:

Window

Explanation:

There is no explonation

3 0

2 years ago

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What are five kinds of evidence you can use to determine if a chemical reaction has occurred?

telo118 [61]

Change of odor, change of color, change of temperature, change of energy, or loss of heat

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2 years ago