Объяснение:
M(KCl)=74,5
Vpозч=mрозч÷pрозч=(25+200)÷1.99=113.07ml
См=n/Vpозч=(m/M)÷Vpозч =(25/74,5)÷0.11307=2.97M
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Объяснение:
M(KCl)=74,5
Vpозч=mрозч÷pрозч=(25+200)÷1.99=113.07ml
См=n/Vpозч=(m/M)÷Vpозч =(25/74,5)÷0.11307=2.97M