Anonymous
Anonymous asked in 科學及數學化學 · 1 decade ago

急!!化学疑问!!幫忙吧

條問題問製備硝酸鈉既最佳方法..

我唔明點解氯化钠同碳酸钠都係鹽..

點解會係碳酸钠最適合

thx

1 Answer

Rating
  • ?
    Lv 7
    1 decade ago
    Best Answer

    when nitric acid react with sodium carbonate, sodium nitrate,

    water and carbon dioxide are formed. since carbon dioxide is

    a gas, it will come out of the solution and will not contaminate

    the solution. but if you use sodium chloride instead. the sodium

    nitrate formed will contaminate with chloride ion. it is not

    good. so we do not use it.

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