how many grams of kcl would you need to weight out to prepare 0.25 l of 2.00 m kcl solution?
回答 (2)
2017-05-30 5:31 pm
✔ 最佳答案
How many grams of KCl would you need to weight out to prepare 0.25 L of 2.00 M KCl solution?Number of moles of KCl needed = (2.00 mol/L) × (0.25 L) = 0.5 mol
Molar mass of KCl = (39.0 + 35.5) g/mol = 74.5 g/mol
Mass of KCl needed = (0.5 mol) × (74.5 g/mol) = 37.3 g
2017-05-30 4:32 pm
Yeah
收錄日期: 2021-04-18 17:06:17
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