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Marizza181 [45]
2 years ago
6

Please help me if possible​

Chemistry
1 answer:
Gwar [14]2 years ago
5 0

Explanation:

RAM={mass number ×relative abundance (%) + mass number ×relative abundance (%)} ÷100%

so take (91.05×20) +(8.95×22)

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Yanka [14]

Happy Holidays! :)

\large\boxed{\text{Water.}}

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Oduvanchick [21]

Answer:

This means the amount of PbCrO4 will precipitate first, with a [Pb^2+] concentration of 1.8*10^-12 M

Explanation:

Step 1: Data given

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Ksp(PbBr2) = 6.3 * 10^–6

Step 2: The balanced equation

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Step 3: Define Ksp

Ksp PbCrO4 = [Pb^2+]*[CrO4^2-]

1.8*10^-14 = [Pb^2+] * 0.010 M

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Ksp PbBr2 = [Pb^2+][Br-]²

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