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4 years ago

A bottle contains 175 ml of insulin at a concentration of 40.0 mg/ml . what is the total mass of insulin in the bottle?

Chemistry

1 answer:

Inessa [10]4 years ago

5 0

D - density: 40 mg/ml
V - volume: 175 ml
m - mass: ??
__________
d = m/V
m = V×d
m = 175×40
m = 7000 mg = 7 g

:•)

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Explanation :

The energy level of quantum particle in a one-dimensional box is given as:

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h = Planck's constant = $6.626\times 10^{-34}Js$

m = mass of electron = $9.109\times 10^{-31}kg$

L = length of a one-dimensional box = ?

Now put all the given values in the above formula, we get:

$479000J/mol=\frac{(1)^2\times (6.626\times 10^{-34}Js)^2}{8\times (9.109\times 10^{-31}kg)\times L^2}$

$L=2.819\times 10^{21}m$

conversion used : $1m=10^{10}\AA$

$L=2.819\times 10^{31}\AA$

Therefore, the length of a one-dimensional box for an electron is $2.819\times 10^{31}\AA$

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