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`1.7 g` of silver nitrate dissolved in `100 g` of water is taken. `0.585 g` of sodium chloride dissolved in `100 g` of water is added to it an chemical reaction occurs. `1.435 g` of silver chloride and `0.85 g` of sodium nitrate are formed. Justify that the data obey law of conservation of mass. |
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Answer» Total mass before the cemical change `{:(=mass ofAgNO_(3),+,mass of NaCI,+,"mass of water"),(=1.7,+,0.585,+,200):}` `=202. 285 g` Total mass after the chemical reaction `{:(=mass ofAgCI,+,mass of NaNO_(3),+,"mass of water"),(=1.435,+,0.85,+,200):}` `=202.285 g` Thus total mass before reaction = total mass agter reaction. This confirms the law of conservation of mass. |
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