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UkoKoshka [18]
2 years ago
10

How many molecules are in 145 g of aluminum sulfate?

Chemistry
1 answer:
Rina8888 [55]2 years ago
5 0

Answer:2.55 x 10^23 molecules

Explanation:

i had the same question for my class lol, do u go to forest park?

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3 years ago
Write and balance the equation for the decomposition of aluminum chloride into its elements. phase symbols are optional.
lora16 [44]
The 3 and 2 to the right of the components are subscriptions.

7 0
3 years ago
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Please someone explain this too me​
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I believe it would be 7.731. x 10^5? That is if they want you to evaluate.
3 0
3 years ago
The maximum allowable concentration of pb2+ ions in drinking water is 0.05 ppm (i.e., 0.05 g of pb2+ in 1 million grams of water
trasher [3.6K]
PbSO₄ partially dissociates in water. the balanced equation is;
                    
                       PbSO₄(s) ⇄  Pb²⁺(aq) + SO₄²⁻(aq)
Initial                                     -                -
Change             -X               +X           +X
Equilibrium                           X              X

Ksp           =    [Pb²⁺(aq)] [SO₄²⁻(aq)]
1.6 x 10⁻⁸  =    X * X
1.6 x 10⁻⁸  =    X²
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Hence the Pb²⁺ concentration in underground water is 1.3 x 10⁻⁴ M. 
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8 0
3 years ago
A sample of an ionic compound containing iron and chlorine is analyzed and found to have a molar mass of 126.8 g/mol. what is th
julsineya [31]
Answer is: <span>the charge of the iron in this compound is +2.
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Oxaidation number of chlorine is -1.
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