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2 years ago

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Chemistry

2 answers:

luda_lava [24]2 years ago

6 0

so you know that Oxygen. A, number of protons and neutrons=16 and Z, number of protons=8

so...you find the amount of neutrons a-z=n

16-8=n

16-8=8

then for oxygen A number of protons and neutrons,=18,Z,number of neutrons=8

so....18-8=N

18-8=10

so the difference is in the number of there neutrons, and the main reason of them being a isotope.

NeTakaya2 years ago

3 0

Isotope atoms mean, atoms with the same number of protons but different number of neutrons in their nuclei . The given oxygen atoms are isotopes meaning they have different number of neutrons in their nuclei . Oxygen 16 have 8 protons and 8 neutrons in its nucleus but Oxygen has 8 protons and 10 neutrons. That's what make them different.

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Answer:

0.057 M

Explanation:

Step 1: Given data

Solubility product constant (Ksp) for HgBr₂: 2.8 × 10⁻⁴

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Step 2: Write the reaction for the solution of HgBr₂

HgBr₂(s) ⇄ Hg²⁺(aq) + 2 Br⁻

Step 3: Calculate the bromide concentration needed for a precipitate to occur

The Ksp is:

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3 years ago

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2 years ago

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3 years ago

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Answer:

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From the question given above, the following data were obtained:

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Final pressure (P₂) = 1 atm

Final volume (V₂) =?

Next, we shall convert celsius temperature to Kelvin temperature. This can be obtained as follow:

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Final temperature (T₂) = 0 °C + 273

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Finally, we shall determine the new volume. This can be obtained as follow:

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323 × V₂ = 10 × 273

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