Câu hỏi của Minh Dang

Question

undefined giúp mình với mình chỉ cần 2 câu 8 với câu 9 thôi nha

Cảm ơn moii...

Thảo Phương · Accepted Answer

Câu 8 :

a) $n_{Cu}=\dfrac{6,4}{64}=0,1\left(mol\right)$

$n_{Al}=\dfrac{54}{27}=2\left(mol\right)$

b) $V_{CO_2}=0,15.22,4=3,36\left(l\right)$

$V_{N_2}=0,3.22,4=6,72\left(l\right)$

c) $n_{hh}=n_{CO_2}+n_{H_2}=\dfrac{0,22}{44}+\dfrac{0,02}{2}=0,015\left(mol\right)$

$V_{hh}=0,015.22,4=0,336\left(l\right)$

Câu trả lời:

Câu 8 :

a) $n_{Cu}=\dfrac{6,4}{64}=0,1\left(mol\right)$

$n_{Al}=\dfrac{54}{27}=2\left(mol\right)$

b) $V_{CO_2}=0,15.22,4=3,36\left(l\right)$

$V_{N_2}=0,3.22,4=6,72\left(l\right)$

c) $n_{hh}=n_{CO_2}+n_{H_2}=\dfrac{0,22}{44}+\dfrac{0,02}{2}=0,015\left(mol\right)$

$V_{hh}=0,015.22,4=0,336\left(l\right)$

Thảo Phương · Answer

Câu 9

a) $m_N=0,3.14=4.2\left(g\right)$

$m_{Cl}=0,4.35,5=14,2\left(g\right)$

$m_O=5.16=80\left(g\right)$

b) $m_{N_2}=0,2.28=5,6\left(h\right)$

$m_{Cl_2}=0,3.71=21,3\left(g\right)$

$m_{O_2}=4.32=128\left(g\right)$

c) $m_{Fe}=0,12.56=6,72\left(g\right)$

$m_{Cu}=3,15.64=201,6\left(g\right)$

$m_{H_2SO_4}=0,85.98=83,3\left(g\right)$

$m_{CuSO_4}=0,52.160=83,2\left(g\right)$