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insens350 [35]
3 years ago
13

Recording station x has determined that the epicenter of a recent earthquake was 250 km away. no information is available yet fr

om any other recording stations. what can you conclude about the location of the epicenter?
Chemistry
2 answers:
KatRina [158]3 years ago
7 0
The epicenter was located somewhere on a circle centered at Recording station X, with a radius of 250 km.<span>
</span>
zhenek [66]3 years ago
3 0

Answer:

In seismology, the epicenter refers to the point on the surface of the Earth directly above the focus or a hypocenter, that is, the point where an underground explosion or an earthquake originates. In the given case, the recording station has demonstrated that the epicenter of the recent earthquake was 250 kilometers away, this shows that epicenter was situated somewhere on a circle centered at the recording station within a radius of 250 kilometers.

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Answer is: an oxybromate compound is KBrO₄ (x = 4).

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ω(Br) = 0.4366; mass percentage of bromine.

If we take 100 grams of compound:

m(Br) = ω(Br) · 100 g.

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m(Br) = 43.66 g; mass of bromine.

n(Br) = m(Br) ÷ M(Br).

n(Br) = 43.66 g ÷ 79.9 g/mol,

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From chemical formula (KBrOₓ), amount of potassium is equal to amount of bromine: n(Br) = n(K).

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m(K) = 21.365 g; mass of potassium in the compound.

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m(O) =34.97 g; mass of oxygen.

n(O) = 34.97 g ÷ 16 g/mol.

n(O) = 2.185 mol.

n(K) : n(Br) : n(O) = 0.55 mol : 0.55 mol : 2.185 mol /÷ 0.55 mol.

n(K) : n(Br) : n(O) = 1 : 1 : 4.

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