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Alla [95]
3 years ago
8

Draw the Lewis structure (including all lone pair electrons and any formal charges) for one of the four possible isomers of C3H9

N.

Chemistry
1 answer:
Over [174]3 years ago
3 0

Answer:

As shown in the attachment

Explanation:

The four possible isomers are as shown in the attachment.

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Explanation:

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If 0.025 gram of Pb(NO3)2 is dissolved in 100. grams of H2O, what is the concentration of the resulting solution, in parts per m
anastassius [24]

Answer:

249.94ppm

Explanation:

Given parameters:

Mass of Pb(NO₃)₂  = 0.025g

Mass of water = 100g

Unknown:

Concentration of solution in ppm  = ?

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Concentration in parts per million gives the amount of solute found in a million units of the solution. They are desirable for expressing very small amount of solutes in a large solution. For example, the level of arsenic in the soil.

Concentration in ppm  = \frac{amount of solute}{amount of solution} x 10^{6}

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