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2 years ago

Give me your worst/best pick up line (using these on my crush btw)

Chemistry

2 answers:

Georgia [21]2 years ago

8 0

Is your name wifi? cuz im really feeling a connection

If looks could kill, you'd be a weapon of mass destruction

Do you have a band aid? I scraped my knee falling for you:)

I'm not drunk, just intoxicated by you

are you a criminal? cuz you already stole my heart

i dont have a library card but do you mind if i check you out?

Brut [27]2 years ago

4 0

did it hurt when you fell from heaven ;)

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The device shown in the picture is used by electric utility power stations to produce electrical energy from _____ energy.A. Sol

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3 years ago

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A certain atom has an atomic number of four. how many protons does it have? 8 2 0 4 description

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How many atoms are in 5 mole of water?<br> Steps

Vladimir79 [104]

Answer: 3.01 x 10^24 atoms

Explanation:

Based on Avogadro's law:

1 mole of any substance has 6.02 x 10^23 atoms

So, 1 mole of water = 6.02 x 10^23 atoms

5 moles of water = Z atoms

To get the value of Z, cross multiply

Z x 1 mole = (6.02 x 10^23 atoms x 5 moles)

Z•mole = 30.1 x 10^23 atoms•mole

Divide both sides by 1 mole

Z•mole/1 mole = 30.1 x 10^23 atoms•mole/ 1 mole

Z = 30.1 x 10^23 atoms

[Place the value of Z in standard form]

Z = 3.01 x 10^24 atoms

Thus, there are 3.01 x 10^24 atoms in 5 mole of water

3 0

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

Describe the function of each of the following types of neurons.

lutik1710 [3]

B will be the one I think tbh

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2 years ago

Give me your worst/best pick up line (using these on my crush btw)​

Give me your worst/best pick up line (using these on my crush btw)