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shtirl [24]
2 years ago
11

An element has three different isotopes. One has a mass of 35.00 amu; another has a mass of 36.00 amu; and another has a mass of

38.00 amu. What is the average atomic mass of this element? (amu = atomic mass unit)
Chemistry
1 answer:
yulyashka [42]2 years ago
8 0

Answer:

so 35+38+36÷3= 109÷3 =36.33 AMU

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An aluminum block has a density of 2.70 g/mL. If the mass of the block is 24.60 g, find the volume of the substance.
harina [27]

Volume of a substance can be determined by dividing mass of the substance by its density.

That can be mathematical shown as:

Density=Mass/Volume

So, Volume=Mass/Density

Here mass of the substance given as 24.60 g

Whereas density of the substance is 2.70 g/mL

So,

Volume=Mass/Density

=24.6/2.7

=9.1 mL

So volume of the substance is 9.1 mL.

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nataly862011 [7]

Answer:

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K-2

L-8

M-8

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Draw the structure of the compound formed from propanoic acid and dimethylamine
jeyben [28]

 The compound form from propanoic acid and dimethylamine is 3-(dimethylamino)propanoic acid. Propanoic acid is a liquid carboxylic acid that has pungent and unpleasant smell resembling to body odor. Its chemical formula is C2H5C00H. Moreover, dimethylamine is an organic compound and a secondary amine that is colorless, flammable gas with an ammonia like odor. Its chemical formula is (CH3)2NH.

The 2D structure is attached here.

 

                                                                        

                          

Download docx
7 0
3 years ago
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