Chemistry
Senior High
計算の仕方が全く分かりません
教えてください
125gのNaClを水100gに溶かした溶液の質量パーセント濃度は何%
A
25
4
X100=
20%
225+100
2、質量パーセント濃度が25%の食塩水 400gには何g食塩が溶けています
400×100=25%.x=100g
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