50gNaNO溶于水并稀释至250ml,则此溶液的质量浓度是 A.50g/L

昕玥2020-05-20  12

问题 50gNaNO溶于水并稀释至250ml,则此溶液的质量浓度是A.50g/LB.100g/LC.200g/LD.250g/LE.25g/L

选项

答案C

解析50g/250ml=200g/L。
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