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KiRa [710]
3 years ago
11

Determine how many moles of Ba(OH)2 are required to completely neutralize 0.117 mole of HC2H3O2.

Chemistry
1 answer:
Naddika [18.5K]3 years ago
6 0
HC₂H₃O₂ (CH₃COOH) - acetic acid
-------------------------------------------------
2CH₃COOH + Ba(OH)₂ ----> (CH₃COO)₂Ba + 2H₂O
2 mol              1 mol

2 mol CH₃COOH -------- 1 mol <span>Ba(OH)₂
0,117 mol </span><span>CH₃COOH ------ X
X = 0,117/2
<u>X = 0,0585 mol  </u></span><span><u>Ba(OH)₂


</u>
</span>
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Radium decays to form radon. Which equation correctly describes this decay? Superscript 226 Subscript 88 Baseline Upper R a righ
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Answer: 226 Subscript 88 Baseline Upper R a right arrow Superscript 222 Subscript 86 Baseline Upper R n + Superscript 4 Subscript 2 Baseline Upper H e

Explanation:

Alpha decay : When a larger nuclei decays into smaller nuclei by releasing alpha particle. In this process, the mass number and atomic number is reduced by 4 and 2 units respectively.

The general representation of alpha decay reaction is:

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^{226}_{88}\textrm{Ra}\rightarrow ^{222}_{86}\textrm {Rn}+ ^{4}_{2}\textrm{He}

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