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Bingel [31]
3 years ago
8

If a lake became too acidic, which of the following describes the best way that scientists could determine how to make the lake

more
neutral?
A. Dump a large quantity of a base, such as sodium hydroxide, into the lake.
B. Use samples of the lake water as models for testing the results of adding various chemicals.
C. Siphon off the acidic portions of the lake and leave the rest of the water alone.
D. Double the amount of water in the lake, so the acidity will be diluted.
Chemistry
1 answer:
masha68 [24]3 years ago
5 0
The answer is ....................c
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Explanation:

1) The ratio of Al in the molecule is  1 mol to 1 mol .

2) The mass of 1 mol of molecules of Al (CH2H3O2)3 is the molar mass of the compound.

3) You calculate the molar mass of the compound using the atomic masses of each atom, in this way:

Al: 27 g/mol
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Molar mass = 27 g/mol + 72 g/mol + 9 g/mol + 96 g/mol = 204 g/mol

4) Set a proportion:

    27 g/mol                x
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5) Solve for x:

x = 500 g * 27 g/mol / 204 g/mol = 66.2 g
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The number of electrons and protons are same, i.e. their atomic number is same and thus their chemical properties are same as chemical properties are determined by the atom’s electronic configuration and that relates to number of protons.

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