Chemistry, 20.10.2020 14:01 whocares1234
1.00 l sample of polluted water was analysed for lead(II) ions, , by
adding an excess of sodium sulfate to it. The mass of lead(II) sulfate
that precipitated out was 229.8 mg. Calculate the concentration of lead
(II) ions in mg l -1 present in the initial sample of polluted water.
Answers: 1
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Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
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1.00 l sample of polluted water was analysed for lead(II) ions, , by
adding an excess of sodium sul...
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