几道英文版的化学题,1.A solution is labeled "0.450M magnesium nitrate.
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几道英文版的化学题,
1.A solution is labeled "0.450M magnesium nitrate." Calculate the concentration of each ion present in solution.
2.Calculate the number of moles of KOH in 150.0 mL of a 0.500M KOH solution.
3.Cauculate the new concentration when 50.0mL of water is added to 725.0mL of 1.25M NaCl.
1.A solution is labeled "0.450M magnesium nitrate." Calculate the concentration of each ion present in solution.
2.Calculate the number of moles of KOH in 150.0 mL of a 0.500M KOH solution.
3.Cauculate the new concentration when 50.0mL of water is added to 725.0mL of 1.25M NaCl.
- - 第一题 硝酸根0.9mol每升 mg离子0.45mol每升
第二题0.075mol
第三题怎么有小数点 .1.17
第二题0.075mol
第三题怎么有小数点 .1.17
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