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Khai Hoan Nguyen
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2023-06-18 17:21:14
\(H_2SO_4+2NaOH->Na_2SO_4+2H_2O\\ H_2SO_4+Na_2CO_3->Na_2SO_4+CO_2+H_2O\\ n_{Na_2CO_3}=0,1mol=n_{H_2SO_4dư}\\ n_{H_2SO_4}=\dfrac{1}{2}n_{NaOH}=\dfrac{1}{2}.0,15.2=0,15mol\\ C_{M\left(H_2SO_4\right)}=\dfrac{0,15+0,1}{0,25}=1\left(M\right)\\ m_{Na_2SO_4}=142\left(0,15+0,1\right)=35,5g\)