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LUCKY_DIMON [66]
3 years ago
14

What is true of a solution with a pH of 12

Chemistry
1 answer:
mars1129 [50]3 years ago
6 0
It is alkaline ........I need 20 characters......
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What is the mass of oxygen that can be produced from 2.79 moles of lead(ll) nitrate
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1.38 moles of oxygen

Explanation:

Thermal decomposition of Lead (II) nitrate is shown by the balanced equation below;

2Pb(NO₃)₂ → 2PbO + 4NO₂ + O₂

The mole ration of Lead (II) nitrate to oxygen is 2: 1

Therefore 2.76 moles of  Lead (II) nitrate will lead to production of? moles of oxygen;

2: 1

2.76: x

Cross-multiply;

2x = 2.76 * 1

x = 2.76 / 2

x = 1.38

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