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ivanzaharov [21]
3 years ago
13

What information about earthquakes do scientists gain from seismographs?

Chemistry
2 answers:
Anvisha [2.4K]3 years ago
8 0

Answer:

how strong it is

Explanation:

Seismographs are not able to say when earthquake will happen, but they help humans to know how strong it is or if it is happening or not

ivanzaharov [21]3 years ago
3 0
They learn how strong it is
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Select the name of the period 4 transition element that forms a 3+ diamagnetic ion.
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If you are administering an oral acetaminophen dose of 320. mg from a bottle at a concentration of 32.0 mg/ml , how many millili
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Explain how nutrients are cycled in a food chain.
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4 years ago
Titration Volume & Concentration
polet [3.4K]

Answer:

18,1 mL of a 0,304M HCl solution.

Explanation:

The neutralization reaction of Ba(OH)₂ with HCl is:

2 HCl + Ba(OH)₂ → BaCl₂ + 2 H₂O

The moles of 17,1 mL≡0,0171L of a 0,161M Ba(OH)₂ solution are:

0,0171L*\frac{0,161moles}{L} = 2,7531x10⁻³moles of Ba(OH)₂

By the neutralization reaction you can see that 2 moles of HCl reacts with 1 mole of Ba(OH)₂. For a complete reaction of 2,7531x10⁻³moles of Ba(OH)₂ you need:

2,7531x10^{-3}molBa(OH)_{2}*\frac{2molHCl}{1molBa(OH)_{2}} = 5,5062x10⁻³moles of HCl.

The volume of a 0,304M HCl solution for a complete neutralization is:

5,5062x10^{-3}molHCl*\frac{1L}{0,304mol} = 0,0181L≡18,1mL

I hope it helps!

4 0
3 years ago
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